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Outpost Firewall Pro Hooked Functions Denial of Service
Secunia Advisory: SA22913
Release Date: 2006-11-16
Last Update: 2007-06-06
Popularity: 7,489 views

Critical:
Not critical
Impact: DoS
Where: Local system
Solution Status: Vendor Patch

Software:Outpost Firewall Pro 4.x

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CVE reference:CVE-2006-7160


Description:
Matousec has discovered a vulnerability in Outpost Firewall Pro, which can be exploited by malicious, local users to cause a DoS (Denial of Service).

The vulnerability is caused due to an error within Sandbox.sys when handling the parameters of certain hooked functions. This can be exploited to cause a DoS by calling NtAssignProcessToJobObject, NtCreateKey, NtCreateThread, NtDeleteFile, NtLoadDriver, NtOpenProcess, NtProtectVirtualMemory, NtReplaceKey, NtTerminateProcess, NtTerminateThread, NtUnloadDriver, and NtWriteVirtualMemory with specially crafted parameters.

The vulnerability is confirmed in version 4.0 (971.7030.584). Other versions may also be affected.

Solution:
Updated to version 4.0 (1005.590.123).
http://www.agnitum.com/support/upgradeprotection.php

Provided and/or discovered by:
Matousec Transparent Security

Changelog:
2007-03-14: Added CVE reference.
2007-06-06: Updated "Solution" section. Added links to "Original Advisory" section.

Original Advisory:
Agnitum:
http://www.agnitum.com/products/outpost/history.php
http://agnitumblog.blogspot.com/2007/01/outpost-40-vulnerability-update.html

Matousec Transparent Security:
http://www.matousec.com/info/advisori...lidation-of-hooked-SSDT-functions.php


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