[NT] ISS BlackICE PC Protection Filelock Protection Bypass

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

- - - - - - - - -



ISS BlackICE PC Protection Filelock Protection Bypass
------------------------------------------------------------------------


SUMMARY

"BlackICE PC Protection scans all inbound Internet traffic for suspicious
activity on home or small business systems and stops it cold."

The list of protected files is stored in filelock.txt in the BlackICE
installation directory. If this file is deleted files mentioned in
filelock.txt are not protected any more and can be changed by malicious
applications.

DETAILS

Vulnerable Systems:
* BlackICE PC Protection 3.6.cpu
* BlackICE PC Protection 3.6.cpj
* Possibly other versions of BlackICE PC Protection 3.6 (and below).

Description:
BlackICE PC Protection protects its files against manipulation by
malicious software. Its critical files like its
database of trusted applications or firewall configuration are protected.
The list of protected files is stored in
filelock.txt in the BlackICE installation directory. If this file is
deleted files mentioned in filelock.txt are not
protected any more and can be changed by malicious applications. The
implemented protection allows malicious
applications to delete this file using native API function ZwDeleteFile.
This can result in a bypass of all BlackICE
protection mechanisms because its internal componenets can be replaced
with fake copies. The situation is even easier
for the attacker because the component control fails to recognize fake
components in BlackICE processes.

A proof of concept including source code is available here:

<http://www.matousec.com/info/advisories/BlackICE-Filelock-protection-bypass.php> http://www.matousec.com/info/advisories/BlackICE-Filelock-protection-bypass.php


ADDITIONAL INFORMATION

The information has been provided by <Matousec - Transparent security
Research> Matousec.
For the original advisory please visit:
<http://www.matousec.com/info/advisories/BlackICE-Filelock-protection-bypass.php> http://www.matousec.com/info/advisories/BlackICE-Filelock-protection-bypass.php.



========================================


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@xxxxxxxxxxxxxx
In order to subscribe to the mailing list, simply forward this email to: list-subscribe@xxxxxxxxxxxxxx


====================
====================

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.

Quantcast