 |
|
|
|
#######################################################################
Luigi Auriemma
Application: Foxit Remote Access Server (WAC Server)
http://www.foxitsoft.com/wac/server_intro.php
Versions: <= 2.0 Build 3503
Platforms: Windows
Bugs: A] telnet option heap overflow
B] SSH packet heap overflow
Exploitation: remote
Date: 16 Feb 2008
Author: Luigi Auriemma
e-mail: aluigi@autistici.org
web: aluigi.org
#######################################################################
1) Introduction
2) Bugs
3) The Code
4) Fix
#######################################################################
===============
1) Introduction
===============
WAC is a commercial SSH/telnet server for Windows.
#######################################################################
=======
2) Bugs
=======
------------------------------
A] telnet option heap overflow
------------------------------
The WAC server is vulnerable to a heap overflow exploitable through the
usage of options longer than 260 bytes.
Note: this bug was wrongly reported by me as a crash and with a wrong
server version one month ago.
---------------------------
B] SSH packet heap overflow
---------------------------
The server is affected also by another heap overflow exploitable
through big SSH packets, anyway no deeper research has been performed
on this vulnerability.
#######################################################################
===========
3) The Code
===========
http://aluigi.org/poc/wachof.zip
#######################################################################
======
4) Fix
======
No fix
#######################################################################
---
Luigi Auriemma
http://aluigi.org
|
|
|
|
|
|
|
|
