New Linux For InfoSec

##############################
# Linux For InfoSec Pros     #
# By Joe McCray              #
##############################



##########
# VMWare #
##########
- For this workshop you'll need the latest version of VMWare Workstation (Windows), Fusion (Mac), or Player.

- http://www.vmware.com/ap/products/player.html


- Although you can get the VM to run in VirtualBox, I will not be supporting this configuration for this class.


##########################
# Download the attack VM #
##########################
https://s3.amazonaws.com/StrategicSec-VMs/StrategicsecUbuntu14.zip
user: strategicsec
pass: strategicsec

- Here is a good set of slides for getting started with Linux:
http://www.slideshare.net/olafusimichael/linux-training-24086319




- Log in to your Ubuntu host with the following credentials:
	user: strategicsec
	pass: strategicsec



- I prefer to use Putty to SSH into my Ubuntu host on pentests and I'll be teaching this class in the same manner that I do pentests.
- You can download Putty from here:
- http://the.earth.li/~sgtatham/putty/latest/x86/putty.exe


- For the purpose of this workshop 192.168.230.128 is my Ubuntu IP address so anytime you see that IP you'll know that's my Ubuntu host



########################
# Basic Linux Commands #
########################

pwd

whereis pwd

which pwd

sudo find / -name pwd

/bin/pwd

mkdir test

cd test

touch one two three

ls -l t		(without pressing the Enter key, press the Tab key twice. What happens?)

h		(and again without pressing the Enter key, press the Tab key twice. What happens?)

Press the 'Up arrow key'	(What happens?)

Press 'Ctrl-A'			(What happens?)

ls

clear				(What happens?)

echo one > one

cat one				(What happens?)

man cat				(What happens?)
	q

cat two

cat one > two

cat two

cat one two > three

cat three

echo four >> three

cat three 			(What happens?)

wc -l three

man wc
	q

cat three | grep four

cat three | grep one

man grep
	q


sudo grep eth[01] /etc/*	(What happens?)

cat /etc/iftab


man ps
	q

ps

ps aux

ps aux | less

Press the 'Up arrow key'	(What happens?)

Press the 'Down arrow key'	(What happens?)
	q

top

############
# VIM Demo #
############
http://www.thegeekstuff.com/2009/03/8-essential-vim-editor-navigation-fundamentals/

-- DO VIM THIS TUTORIAL --



#########################################################################
# What kind of Linux am I on and how can I find out? 			#
# Great reference: 							#
# https://blog.g0tmi1k.com/2011/08/basic-linux-privilege-escalation/ 	#
#########################################################################
- What’s the distribution type? What version?
-------------------------------------------
cat /etc/issue
cat /etc/*-release
cat /etc/lsb-release      		# Debian based
cat /etc/redhat-release   		# Redhat based



- What’s the kernel version? Is it 64-bit?
-------------------------------------------
cat /proc/version
uname -a
uname -mrs
rpm -q kernel
dmesg | grep Linux
ls /boot | grep vmlinuz-



- What can be learnt from the environmental variables?
----------------------------------------------------
cat /etc/profile
cat /etc/bashrc
cat ~/.bash_profile
cat ~/.bashrc
cat ~/.bash_logout
env
set


- What services are running? Which service has which user privilege?
------------------------------------------------------------------
ps aux
ps -ef
top
cat /etc/services


- Which service(s) are been running by root? Of these services, which are vulnerable - it’s worth a double check!
---------------------------------------------------------------------------------------------------------------
ps aux | grep root
ps -ef | grep root



- What applications are installed? What version are they? Are they currently running?
------------------------------------------------------------------------------------
ls -alh /usr/bin/
ls -alh /sbin/
dpkg -l
rpm -qa
ls -alh /var/cache/apt/archivesO
ls -alh /var/cache/yum/


- Any of the service(s) settings misconfigured? Are any (vulnerable) plugins attached?
------------------------------------------------------------------------------------
cat /etc/syslog.conf
cat /etc/chttp.conf
cat /etc/lighttpd.conf
cat /etc/cups/cupsd.conf
cat /etc/inetd.conf
cat /etc/apache2/apache2.conf
cat /etc/my.conf
cat /etc/httpd/conf/httpd.conf
cat /opt/lampp/etc/httpd.conf
ls -aRl /etc/ | awk '$1 ~ /^.*r.*/



- What jobs are scheduled?
------------------------
crontab -l
ls -alh /var/spool/cron
ls -al /etc/ | grep cron
ls -al /etc/cron*
cat /etc/cron*
cat /etc/at.allow
cat /etc/at.deny
cat /etc/cron.allow
cat /etc/cron.deny
cat /etc/crontab
cat /etc/anacrontab
cat /var/spool/cron/crontabs/root


- Any plain text usernames and/or passwords?
------------------------------------------
grep -i user [filename]
grep -i pass [filename]
grep -C 5 "password" [filename]
find . -name "*.php" -print0 | xargs -0 grep -i -n "var $password"   		# Search for Joomla passwords


- What NIC(s) does the system have? Is it connected to another network?
---------------------------------------------------------------------
/sbin/ifconfig -a
cat /etc/network/interfaces
cat /etc/sysconfig/network


- What are the network configuration settings? What can you find out about this network? DHCP server? DNS server? Gateway?
------------------------------------------------------------------------------------------------------------------------
cat /etc/resolv.conf
cat /etc/sysconfig/network
cat /etc/networks
iptables -L
hostname
dnsdomainname

- What other users & hosts are communicating with the system?
-----------------------------------------------------------
lsof -i
lsof -i :80
grep 80 /etc/services
netstat -antup
netstat -antpx
netstat -tulpn
chkconfig --list
chkconfig --list | grep 3:on
last
w



- Whats cached? IP and/or MAC addresses
-------------------------------------
arp -e
route
/sbin/route -nee


- Who are you? Who is logged in? Who has been logged in? Who else is there? Who can do what?
------------------------------------------------------------------------------------------
id
who
w
last
cat /etc/passwd | cut -d:    # List of users
grep -v -E "^#" /etc/passwd | awk -F: '$3 == 0 { print $1}'   # List of super users
awk -F: '($3 == "0") {print}' /etc/passwd   # List of super users
cat /etc/sudoers
sudo -l



- What sensitive files can be found?
----------------------------------
cat /etc/passwd
cat /etc/group
cat /etc/shadow
ls -alh /var/mail/



- Anything “interesting” in the home directorie(s)? If it’s possible to access
----------------------------------------------------------------------------
ls -ahlR /root/
ls -ahlR /home/


- Are there any passwords in; scripts, databases, configuration files or log files? Default paths and locations for passwords
---------------------------------------------------------------------------------------------------------------------------
cat /var/apache2/config.inc
cat /var/lib/mysql/mysql/user.MYD
cat /root/anaconda-ks.cfg


- What has the user being doing? Is there any password in plain text? What have they been edting?
-----------------------------------------------------------------------------------------------
cat ~/.bash_history
cat ~/.nano_history
cat ~/.atftp_history
cat ~/.mysql_history
cat ~/.php_history



- What user information can be found?
-----------------------------------
cat ~/.bashrc
cat ~/.profile
cat /var/mail/root
cat /var/spool/mail/root


- Can private-key information be found?
-------------------------------------
cat ~/.ssh/authorized_keys
cat ~/.ssh/identity.pub
cat ~/.ssh/identity
cat ~/.ssh/id_rsa.pub
cat ~/.ssh/id_rsa
cat ~/.ssh/id_dsa.pub
cat ~/.ssh/id_dsa
cat /etc/ssh/ssh_config
cat /etc/ssh/sshd_config
cat /etc/ssh/ssh_host_dsa_key.pub
cat /etc/ssh/ssh_host_dsa_key
cat /etc/ssh/ssh_host_rsa_key.pub
cat /etc/ssh/ssh_host_rsa_key
cat /etc/ssh/ssh_host_key.pub
cat /etc/ssh/ssh_host_key


- Any settings/files (hidden) on website? Any settings file with database information?
------------------------------------------------------------------------------------
ls -alhR /var/www/
ls -alhR /srv/www/htdocs/
ls -alhR /usr/local/www/apache22/data/
ls -alhR /opt/lampp/htdocs/
ls -alhR /var/www/html/


- Is there anything in the log file(s) (Could help with “Local File Includes”!)
-----------------------------------------------------------------------------
cat /etc/httpd/logs/access_log
cat /etc/httpd/logs/access.log
cat /etc/httpd/logs/error_log
cat /etc/httpd/logs/error.log
cat /var/log/apache2/access_log
cat /var/log/apache2/access.log
cat /var/log/apache2/error_log
cat /var/log/apache2/error.log
cat /var/log/apache/access_log
cat /var/log/apache/access.log
cat /var/log/auth.log
cat /var/log/chttp.log
cat /var/log/cups/error_log
cat /var/log/dpkg.log
cat /var/log/faillog
cat /var/log/httpd/access_log
cat /var/log/httpd/access.log
cat /var/log/httpd/error_log
cat /var/log/httpd/error.log
cat /var/log/lastlog
cat /var/log/lighttpd/access.log
cat /var/log/lighttpd/error.log
cat /var/log/lighttpd/lighttpd.access.log
cat /var/log/lighttpd/lighttpd.error.log
cat /var/log/messages
cat /var/log/secure
cat /var/log/syslog
cat /var/log/wtmp
cat /var/log/xferlog
cat /var/log/yum.log
cat /var/run/utmp
cat /var/webmin/miniserv.log
cat /var/www/logs/access_log
cat /var/www/logs/access.log
ls -alh /var/lib/dhcp3/
ls -alh /var/log/postgresql/
ls -alh /var/log/proftpd/
ls -alh /var/log/samba/

- Note: auth.log, boot, btmp, daemon.log, debug, dmesg, kern.log, mail.info, mail.log, mail.warn, messages, syslog, udev, wtmp




#################
# IPTables Demo #
#################
- Reference:
http://www.thegeekstuff.com/2011/06/iptables-rules-examples/

- Delete Existing Rules
---------------------
sudo /sbin/iptables -F
	(or)
sudo /sbin/iptables --flush



- Set Default Chain Policies
--------------------------
iptables -P INPUT DROP
iptables -P FORWARD DROP
iptables -P OUTPUT DROP



- Delete Existing Rules
---------------------
sudo /sbin/iptables -F
	(or)
sudo /sbin/iptables --flush


- Block a Specific ip-address
---------------------------
BLOCK_THIS_IP="1.2.3.4"
iptables -A INPUT -s "$BLOCK_THIS_IP" -j DROP


iptables -A INPUT -i eth0 -s "$BLOCK_THIS_IP" -j DROP
iptables -A INPUT -i eth0 -p tcp -s "$BLOCK_THIS_IP" -j DROP


- Allow ALL Incoming SSH
----------------------
iptables -A INPUT -i eth0 -p tcp --dport 22 -m state --state NEW,ESTABLISHED -j ACCEPT
iptables -A OUTPUT -o eth0 -p tcp --sport 22 -m state --state ESTABLISHED -j ACCEPT


- Allow Incoming SSH only from a Sepcific Network
-----------------------------------------------
iptables -A INPUT -i eth0 -p tcp -s 192.168.100.0/24 --dport 22 -m state --state NEW,ESTABLISHED -j ACCEPT
iptables -A OUTPUT -o eth0 -p tcp --sport 22 -m state --state ESTABLISHED -j ACCEPT


- Allow Incoming HTTP and HTTPS
-----------------------------
iptables -A INPUT -i eth0 -p tcp --dport 80 -m state --state NEW,ESTABLISHED -j ACCEPT
iptables -A OUTPUT -o eth0 -p tcp --sport 80 -m state --state ESTABLISHED -j ACCEPT


iptables -A INPUT -i eth0 -p tcp --dport 443 -m state --state NEW,ESTABLISHED -j ACCEPT
iptables -A OUTPUT -o eth0 -p tcp --sport 443 -m state --state ESTABLISHED -j ACCEPT



- Combine Multiple Rules Together using MultiPorts
------------------------------------------------
iptables -A INPUT -i eth0 -p tcp -m multiport --dports 22,80,443 -m state --state NEW,ESTABLISHED -j ACCEPT
iptables -A OUTPUT -o eth0 -p tcp -m multiport --sports 22,80,443 -m state --state ESTABLISHED -j ACCEPT


- Allow Outgoing SSH
------------------
iptables -A OUTPUT -o eth0 -p tcp --dport 22 -m state --state NEW,ESTABLISHED -j ACCEPT
iptables -A INPUT -i eth0 -p tcp --sport 22 -m state --state ESTABLISHED -j ACCEPT









####################
# MD5 Hashing Demo #
####################
mkdir ~/demo
cd ~/demo



mkdir hashdemo
cd hashdemo
echo test > test.txt
cat test.txt
md5sum test.txt
echo hello >> test.txt
cat test.txt
md5sum test.txt
cd ..



Reference:
https://www.howtoforge.com/tutorial/linux-commandline-encryption-tools/


#################################
# Symmetric Key Encryption Demo #
#################################
mkdir gpgdemo
cd gpgdemo
echo test > test.txt
cat test.txt
gpg -c test.txt
	password
	password
ls | grep test
cat test.txt
cat test.txt.gpg
rm -rf test.txt
ls | grep test
gpg -o output.txt test.txt.gpg
cat output.txt


#########################################################################################################################
# Asymmetric Key Encryption Demo 											#
#															#
# Configure random number generator 											#
# https://www.howtoforge.com/helping-the-random-number-generator-to-gain-enough-entropy-with-rng-tools-debian-lenny	#
#########################################################################################################################

sudo apt-get install rng-tools
	strategicsec

/etc/init.d/rng-tools start

sudo rngd -r /dev/urandom
	strategicsec


echo hello > file1.txt
echo goodbye > file2.txt
echo green > file3.txt
echo blue > file4.txt

tar czf files.tar.gz *.txt

gpg --gen-key
	1
	1024
	0
	y
	John Doe
	[email protected]
	--blank comment--
	O
		password
		password



gpg --armor --output file-enc-pubkey.txt --export 'John Doe'

cat file-enc-pubkey.txt

gpg --armor --output file-enc-privkey.asc --export-secret-keys 'John Doe'

cat file-enc-privkey.asc

gpg --encrypt --recipient 'John Doe' files.tar.gz

rm -rf files.tar.gz *.txt

ls

tar -zxvf files.tar.gz.gpg

gpg --output output.tar.gz --decrypt files.tar.gz.gpg
	password

tar -zxvf output.tar.gz

ls

Reference:
http://linoxide.com/security/gpg-comand-linux-how-to-encrypt-and-decrypt-file/



############################
# Encryption using OpenSSL #
############################
openssl genrsa -out private_key.pem 1024
openssl rsa -in private_key.pem -out public_key.pem -outform PEM -pubout


echo hello > encrypt.txt
openssl rsautl -encrypt -inkey public_key.pem -pubin -in encrypt.txt -out encrypt.dat

cat encrypt.dat

rm -rf encrypt.txt

ls

openssl rsautl -decrypt -inkey private_key.pem -in encrypt.dat -out decrypt.txt

cat decrypt.txt




##############################################
# Log Analysis with Linux command-line tools #
##############################################
- The following command line executables are found in the Mac as well as most Linux Distributions.

cat –  prints the content of a file in the terminal window
grep – searches and filters based on patterns
awk –  can sort each row into fields and display only what is needed
sed –  performs find and replace functions
sort – arranges output in an order
uniq – compares adjacent lines and can report, filter or provide a count of duplicates



###############
# Apache Logs #
###############

Reference:
http://www.the-art-of-web.com/system/logs/

wget https://s3.amazonaws.com/SecureNinja/Python/access_log


- You want to list all user agents ordered by the number of times they appear (descending order):

awk -F\" '{print $6}' access_log | sort | uniq -c | sort -fr



- Using the default separator which is any white-space (spaces or tabs) we get the following:

awk '{print $1}' access_log         # ip address (%h)
awk '{print $2}' access_log         # RFC 1413 identity (%l)
awk '{print $3}' access_log         # userid (%u)
awk '{print $4,5}' access_log       # date/time (%t)
awk '{print $9}' access_log         # status code (%>s)
awk '{print $10}' access_log        # size (%b)

- You might notice that we've missed out some items. To get to them we need to set the delimiter to the " character which changes the way the lines are 'exploded' and allows the following:

awk -F\" '{print $2}' access_log    # request line (%r)
awk -F\" '{print $4}' access_log    # referer
awk -F\" '{print $6}' access_log    # user agent


awk -F\" '{print $6}' access_log \
  | sed 's/(\([^;]\+; [^;]\+\)[^)]*)/(\1)/' \
  | sort | uniq -c | sort -fr


- The next step is to start filtering the output so you can narrow down on a certain page or referer. Would you like to know which pages Google has been requesting from your site?

awk -F\" '($6 ~ /Googlebot/){print $2}' access_log | awk '{print $2}'
Or who's been looking at your guestbook?

awk -F\" '($2 ~ /guestbook\.html/){print $6}' access_log


Reference:
https://blog.nexcess.net/2011/01/21/one-liners-for-apache-log-files/

# top 20 URLs from the last 5000 hits
tail -5000 ./access_log | awk '{print $7}' | sort | uniq -c | sort -rn | head -20
tail -5000 ./access_log | awk '{freq[$7]++} END {for (x in freq) {print freq[x], x}}' | sort -rn | head -20

# top 20 URLS excluding POST data from the last 5000 hits
tail -5000 ./access_log | awk -F"[ ?]" '{print $7}' | sort | uniq -c | sort -rn | head -20
tail -5000 ./access_log | awk -F"[ ?]" '{freq[$7]++} END {for (x in freq) {print freq[x], x}}' | sort -rn | head -20

# top 20 IPs from the last 5000 hits
tail -5000 ./access_log | awk '{print $1}' | sort | uniq -c | sort -rn | head -20
tail -5000 ./access_log | awk '{freq[$1]++} END {for (x in freq) {print freq[x], x}}' | sort -rn | head -20

# top 20 URLs requested from a certain ip from the last 5000 hits
IP=1.2.3.4; tail -5000 ./access_log | grep $IP | awk '{print $7}' | sort | uniq -c | sort -rn | head -20
IP=1.2.3.4; tail -5000 ./access_log | awk -v ip=$IP ' $1 ~ ip {freq[$7]++} END {for (x in freq) {print freq[x], x}}' | sort -rn | head -20

# top 20 URLS requested from a certain ip excluding, excluding POST data, from the last 5000 hits
IP=1.2.3.4; tail -5000 ./access_log | fgrep $IP | awk -F "[ ?]" '{print $7}' | sort | uniq -c | sort -rn | head -20
IP=1.2.3.4; tail -5000 ./access_log | awk -F"[ ?]" -v ip=$IP ' $1 ~ ip {freq[$7]++} END {for (x in freq) {print freq[x], x}}' | sort -rn | head -20

# top 20 referrers from the last 5000 hits
tail -5000 ./access_log | awk '{print $11}' | tr -d '"' | sort | uniq -c | sort -rn | head -20
tail -5000 ./access_log | awk '{freq[$11]++} END {for (x in freq) {print freq[x], x}}' | tr -d '"' | sort -rn | head -20

# top 20 user agents from the last 5000 hits
tail -5000 ./access_log | cut -d\  -f12- | sort | uniq -c | sort -rn | head -20

# sum of data (in MB) transferred in the last 5000 hits
tail -5000 ./access_log | awk '{sum+=$10} END {print sum/1048576}'


##############
# Cisco Logs #
##############

wget https://s3.amazonaws.com/StrategicSec-Files/LogAnalysis/cisco.log


AWK Basics
----------
- 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.

cat cisco.log | awk '{print $5}' | tail -n 4




- 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.

cat cisco.log | awk '{print $5}'| sort | uniq -c | sort -rn




- 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”.

cat cisco.log | grep %[a-zA-Z]*-[0-9]-[a-zA-Z]* | awk '{print $5}' | sort | uniq -c | sort -rn





- 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.

cat cisco.log | grep %LINEPROTO-5-UPDOWN:

cat cisco.log | grep %LINEPROTO-5-UPDOWN:| awk '{print $10}' | sort | uniq -c | sort -rn

cat cisco.log | grep %LINEPROTO-5-UPDOWN:| sed 's/,//g' | awk '{print $10}' | sort | uniq -c | sort -rn

cat cisco.log | grep %LINEPROTO-5-UPDOWN:| sed 's/,//g' | awk '{print $10 " changed to " $14}' | sort | uniq -c | sort -rn



###########################
# Target IP Determination #
###########################
- This portion starts the actual workshop content
- Zone Transfer fails on most domains, but here is an example of one that works:
dig axfr heartinternet.co.uk  @ns.heartinternet.co.uk


- Usually you will need to do a DNS brute-force with something like blindcrawl or fierce
perl blindcrawl.pl -d motorola.com
	Look up the IP addresses at:
	http://www.networksolutions.com/whois/index.jsp

cd ~/toolz/fierce2
sudo apt-get install -y cpanminus cpan-listchanges cpanoutdated libappconfig-perl libyaml-appconfig-perl libnetaddr-ip-perl libnet-cidr-perl vim
	strategicsec
wget http://search.cpan.org/CPAN/authors/id/A/AB/ABW/Template-Toolkit-2.14.tar.gz
tar -zxvf Template-Toolkit-2.14.tar.gz
cd Template-Toolkit-2.14/
perl Makefile.PL
	y
	y
	n
	y
sudo make install

sudo bash install.sh

./fierce

./fierce -dns motorola.com

cd ~/toolz/




- Here we do a forward lookup against an entire IP range. Basically take every IP in the range and see what it's hostname is
cd ~/toolz/
./ipcrawl 148.87.1.1 148.87.1.254				(DNS forward lookup against an IP range)


sudo nmap -sL 148.87.1.0-255
sudo nmap -sL 148.87.1.0-255 | grep oracle






###########################
# Load Balancer Detection #
###########################

- Here are some options to use for identifying load balancers:
	- http://toolbar.netcraft.com/site_report/
	- Firefox LiveHTTP Headers


- Here are some command-line options to use for identifying load balancers:

dig google.com

cd ~/toolz
./lbd-0.1.sh google.com


halberd microsoft.com
halberd motorola.com
halberd oracle.com





######################################
# Web Application Firewall Detection #
######################################

cd ~/toolz/wafw00f
python wafw00f.py http://www.oracle.com
python wafw00f.py http://www.strategicsec.com


cd ~/toolz/
sudo nmap -p 80 --script http-waf-detect.nse oracle.com

sudo nmap -p 80 --script http-waf-detect.nse healthcare.gov


#########################
# Playing with Nmap NSE #
#########################

nmap -Pn -p80 --script ip-geolocation-* strategicsec.com

nmap -p80 --script dns-brute strategicsec.com

nmap --script http-robtex-reverse-ip secore.info

nmap -Pn -p80 --script=http-headers strategicsec.com


ls /usr/share/nmap/scripts | grep http
nmap -Pn -p80 --script=http-* strategicsec.com

sudo nmap -Pn -n --open -p21 --script=banner,ftp-anon,ftp-bounce,ftp-proftpd-backdoor,ftp-vsftpd-backdoor 148.87.1.0/24

sudo nmap -Pn -n --open -p22 --script=sshv1,ssh2-enum-algos 148.87.1.0/24

sudo nmap -Pn -n -sU --open -p53 --script=dns-blacklist,dns-cache-snoop,dns-nsec-enum,dns-nsid,dns-random-srcport,dns-random-txid,dns-recursion,dns-service-discovery,dns-update,dns-zeustracker,dns-zone-transfer 148.87.1.0/24

sudo nmap -Pn -n --open -p111 --script=nfs-ls,nfs-showmount,nfs-statfs,rpcinfo 148.87.1.0/24

sudo nmap -Pn -n --open -p445 --script=msrpc-enum,smb-enum-domains,smb-enum-groups,smb-enum-processes,smb-enum-sessions,smb-enum-shares,smb-enum-users,smb-mbenum,smb-os-discovery,smb-security-mode,smb-server-stats,smb-system-info,smbv2-enabled,stuxnet-detect 148.87.1.0/24

sudo nmap -Pn -n --open -p1433 --script=ms-sql-dump-hashes,ms-sql-empty-password,ms-sql-info 148.87.1.0/24

sudo nmap -Pn -n --open -p1521 --script=oracle-sid-brute --script oracle-enum-users --script-args oracle-enum-users.sid=ORCL,userdb=orausers.txt 148.87.1.0/24

sudo nmap -Pn -n --open -p3306 --script=mysql-databases,mysql-empty-password,mysql-info,mysql-users,mysql-variables 148.87.1.0/24

sudo nmap -Pn -n --open -p3389 --script=rdp-vuln-ms12-020,rdp-enum-encryption 148.87.1.0/24

sudo nmap -Pn -n --open -p5900 --script=realvnc-auth-bypass,vnc-info 148.87.1.0/24

sudo nmap -Pn -n --open -p6000-6005 --script=x11-access 148.87.1.0/24

sudo nmap -Pn -n --open -p27017 --script=mongodb-databases,mongodb-info 148.87.1.0/24

############
# Nmap NSE #
############

- Reference for this tutorial is:
https://thesprawl.org/research/writing-nse-scripts-for-vulnerability-scanning/

----------------------------------------------------------------------
sudo vi /usr/share/nmap/scripts/intro-nse.nse

-- The Head Section --
-- The Rule Section --
portrule = function(host, port)
    return port.protocol == "tcp"
            and port.number == 80
            and port.state == "open"
end

-- The Action Section --
action = function(host, port)
    return "Linux for InfoSec Professionals!"
end
----------------------------------------------------------------------

- Ok, now that we've made that change let's run the script
sudo nmap --script=/usr/share/nmap/scripts/intro-nse.nse darkoperator.com -p 22,80,443






----------------------------------------------------------------------
sudo vi /usr/share/nmap/scripts/intro-nse.nse

-- The Head Section --
local shortport = require "shortport"

-- The Rule Section --
portrule = shortport.http


-- The Action Section --
action = function(host, port)
    return "Linux for InfoSec Professionals!"
end
----------------------------------------------------------------------

- Ok, now that we've made that change let's run the script
sudo nmap --script=/usr/share/nmap/scripts/intro-nse.nse darkoperator.com -p 22,80,443







----------------------------------------------------------------------
sudo vi /usr/share/nmap/scripts/intro-nse.nse

-- The Head Section --
local shortport = require "shortport"
local http = require "http"

-- The Rule Section --
portrule = shortport.http

-- The Action Section --
action = function(host, port)

    local uri = "/blog/2016/4/2/meterpreter-new-windows-powershell-extension/"
    local response = http.get(host, port, uri)
    return response.status

end
----------------------------------------------------------------------

- Ok, now that we've made that change let's run the script
sudo nmap --script=/usr/share/nmap/scripts/intro-nse.nse darkoperator.com -p 22,80,443




----------------------------------------------------------------------
sudo vi /usr/share/nmap/scripts/intro-nse.nse

-- The Head Section --
local shortport = require "shortport"
local http = require "http"

-- The Rule Section --
portrule = shortport.http

-- The Action Section --
action = function(host, port)

    local uri = "/blog/2016/4/2/meterpreter-new-windows-powershell-extension/"
    local response = http.get(host, port, uri)

    if ( response.status == 200 ) then
        return response.body
    end

end
----------------------------------------------------------------------

- Ok, now that we've made that change let's run the script
sudo nmap --script=/usr/share/nmap/scripts/intro-nse.nse darkoperator.com -p 22,80,443









----------------------------------------------------------------------
sudo vi /usr/share/nmap/scripts/intro-nse.nse

-- The Head Section --
local shortport = require "shortport"
local http = require "http"
local string = require "string"

-- The Rule Section --
portrule = shortport.http

-- The Action Section --
action = function(host, port)

    local uri = "/blog/2016/4/2/meterpreter-new-windows-powershell-extension/"
    local response = http.get(host, port, uri)

    if ( response.status == 200 ) then
        local title = string.match(response.body, "Pentest Candidate Program")
        return title
    end

end
----------------------------------------------------------------------

- Ok, now that we've made that change let's run the script
sudo nmap --script=/usr/share/nmap/scripts/intro-nse.nse darkoperator.com -p 22,80,443







----------------------------------------------------------------------
sudo vi /usr/share/nmap/scripts/intro-nse.nse

-- The Head Section --
local shortport = require "shortport"
local http = require "http"
local string = require "string"

-- The Rule Section --
portrule = shortport.http

-- The Action Section --
action = function(host, port)

    local uri = "/blog/2016/4/2/meterpreter-new-windows-powershell-extension/"
    local response = http.get(host, port, uri)

    if ( response.status == 200 ) then
        local title = string.match(response.body, "Pentest Candidate Program")

        if (title) then
            return "Vulnerable"
        else
            return "Not Vulnerable"
        end
    end
end

----------------------------------------------------------------------

- Ok, now that we've made that change let's run the script
sudo nmap --script=/usr/share/nmap/scripts/intro-nse.nse darkoperator.com -p 22,80,443









#############################
# Linux For InfoSe Homework #
#############################
In order to receive your certificate of attendance you must complete the all of the quizzes on the http://linuxsurvival.com/linux-tutorial-introduction/ website.


Submit the results via email in an MS Word document with (naming convention example: YourFirstName-YourLastName-Linux-For-InfoSec-Homework.docx)




##############################
# Linux For InfoSe Challenge #
##############################

In order to receive your certificate of proficiency you must complete all of the tasks covered in the Linux For InfoSec pastebin (http://pastebin.com/b5SxBRf6).

Submit the results via email in an MS Word document with (naming convention example: YourFirstName-YourLastName-Linux-For-InfoSec-Challenge.docx)




IMPORTANT NOTE:
Your homework/challenge must be submitted via email to both (joe-at-strategicsec-.-com and kasheia-at-strategicsec-.-com) by Sunday October 16th at midnight EST.