Recognize-Security

Posted by Trancer on Jan 25 2010

Wrote a new Metaspoit exploit module for the AOL 9.5 Phobos.Playlist ActiveX control Import() stack-based buffer overflow vulnerability.

This module exploits a stack-based buffer overflow within Phobos.dll of AOL 9.5. By setting an overly long value to ‘Import()’, an attacker can overrun a buffer and execute arbitrary code.

This vulnerability was found by Hellcode Research and was published recently by Dz_attacker. Still no patch from AOL, if you want to test it you can get the vulnerable package from the AOL 9.5 page.

The exploit was successfully tested on the following platforms:
– AOL 9.5 (Revision 4337.155) on Internet Explorer 7, Windows XP SP3

Phobos.dll version tested:
– File Version: 9.5.0.1
– ClassID: A105BD70-BF56-4D10-BC91-41C88321F47C
– RegKey Safe for Script: False
– RegKey Safe for Init: False
– Implements IObjectSafety: False
– KillBitSet: False

Due to the safe for initialization and safe for scripting settings of this ActiveX control, exploitation is possible only from Local Machine Zone, which means the victim must run the generated exploit file locally.

Download aol_phobos_bof.rb.
Also on Metasploit and exploit-db.

References:
OSVDB 61964
exploit-db 11204

Categories: Exploits, Metasploit

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