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Insecure Library Loading
Not critical

Outpost Firewall Pro Hooked Functions Denial of Service

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Release Date:  2006-11-16    Last Update:  2007-06-06    Views:  11,849

Secunia Advisory SA22913

Where:

Local system

Impact:

DoS

Solution Status:

Vendor Patch

CVE Reference(s):

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).

Further details available to Secunia VIM customers

Provided and/or discovered by:
Matousec Transparent Security

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/advisories/Outpost-Multiple-insufficient-argument-validation-of-hooked-SSDT-functions.php

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Outpost Firewall Pro Hooked Functions Denial of Service

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