AOH :: HP Unsorted I :: B06-5243.HTM

ISS BlackICE PC Protection Filelock protection bypass Vulnerability



ISS BlackICE PC Protection Filelock protection bypass Vulnerability
ISS BlackICE PC Protection Filelock protection bypass Vulnerability



Hello,

We would like to inform you about a vulnerability in ISS BlackICE PC Protection.


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.


Vulnerable software:

     * BlackICE PC Protection 3.6.cpu
     * BlackICE PC Protection 3.6.cpj
     * probably all versions of BlackICE PC Protection 3.6
     * possibly older versions of BlackICE PC Protection


More details and a proof of concept including source code is available here: 
http://www.matousec.com/info/advisories/BlackICE-Filelock-protection-bypass.php 


Regards,

-- 
Matousec - Transparent security Research
http://www.matousec.com/ 

The entire AOH site is optimized to look best in Firefox® 3 on a widescreen monitor (1440x900 or better).
Site design & layout copyright © 1986-2014 AOH
We do not send spam. If you have received spam bearing an artofhacking.com email address, please forward it with full headers to abuse@artofhacking.com.