Exploit based on leaked code released.
>From securitytracker
>http://www.securitytracker.com/alerts/2004/Feb/1009067.html
Microsoft Internet Explorer Integer Overflow in Processing Bitmap Files Lets
Remote Users Execute Arbitrary Code
SecurityTracker Alert ID: 1009067
CVE Reference: GENERIC-MAP-NOMATCH (Links to External Site)
Date: Feb 15 2004
Impact: Execution of arbitrary code via network, User access via network
Exploit Included: Yes
Version(s): 5 (6 is reportedly not vulnerable)
Description: A vulnerability was reported in Microsoft Internet Explorer (IE)
version 5. A remote user can execute arbitrary code on the target system.
It is reported that a remote user can create a specially crafted bitmap file
that, when loaded by IE, will trigger an integer overflow and execute arbitrary
code.
The author states that this flaw was found by reviewing the recently leaked
Microsoft Windows source code. The flaw reportedly resides in
'win2k/private/inet/mshtml/src/site/download/imgbmp.cxx'.
The report indicates that IE 5 is affected but that IE 6 is not affected.
A demonstration exploit is provided in the Source Message [it is Base64
encoded].
Impact: A remote user can cause arbitrary code to be executed on the target
user's computer when the target user's browser loads a specially crafted bitmap
file. The code will run with the privileges of the target user.
Solution: No solution was available at the time of this entry.
Vendor URL: www.microsoft.com/technet/security/ (Links to External Site)
Cause: Boundary error
Underlying OS: Windows (Any)
Reported By: <gta@xxxxxxxx>
Message History: None.