mailing list archives
Working GDI+ JPEG exploit code?
From: "Keifer, Trey" <Trey.Keifer () fishnetsecurity com>
Date: Thu, 21 Oct 2004 10:50:38 -0500
I have been testing the code on k-otik's site for the last 3 days and have been unable to get the
reverse shell technique working. My test environment consists of a winxp sp1 machine in a vmware
session and a fully patched winxp sp2 host machine. The code reliably crashes explorer when a
directory with a malicious jpeg is browsed, but my netcat listener on the host never picks up
My thoughts now are that because the exploit is heap based, its never jumping to a point anywhere in
the NOP sleds and thus, never finding my shellcode. I ran it through ollydbg and see that EDX contains
my SC, but EIP is not under our control so we have no way to point to it.
This is my first real in-depth analysis, so go easy...
Security Engineer - Level II
Toll Free: 888.732.9406
The information transmitted in this e-mail is intended only for the addressee and may contain confidential and/or
Any interception, review, retransmission, dissemination, or other use of, or taking of any action upon this information
by persons or entities
other than the intended recipient is prohibited by law and may subject them to criminal or civil liability. If you
received this communication
in error, please contact us immediately at 816.421.6611, and delete the communication from any computer or network
Full-Disclosure - We believe in it.
- Working GDI+ JPEG exploit code? Keifer, Trey (Oct 21)