bugtraq - Privilege Escalation through Binary Planting in Panda Internet Security

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Date: Mon, 3 Dec 2012 20:49:10 GMT
From: by_argos@...mail.com
To: bugtraq@...urityfocus.com
Subject: Privilege Escalation through Binary Planting in Panda Internet
 Security

========================================================================
Privilege Escalation through Binary Planting in Panda Internet Security
========================================================================

Software: Panda Internet Security 2012 & 2013
Vendor: http://www.pandasecurity.com/
Vuln Type: Binary Planting Attack
Remote: No
Local: Yes
Discovered by: QSecure and Demetris Papapetrou
Website: http://www.qsecure.com.cy
Discovered: 09/09/2012
Reported: 19/11/2012
Disclosed: 04/12/2012
Vendor's Response: Automatically Generated Email
Vulnerability Reference: http://www.qsecure.com.cy/advisories/binary_planting_in_panda.html

VULNERABILITY DESCRIPTION:
==========================
As a result of an incorrect dynamic link library (DLL) loading in Panda Internet Security, an attacker with user level access to the machine can elevate 

his/her privileges to SYSTEM.

This can be accomplished by planting a malicious DLL file in a writable folder that is part of the system's %PATH% variable. The malicious DLL is loaded when 

the vulnerable Panda service or the system is restarted.

The following DLLs are insecurely loaded by Panda Internet Security 2013:

Insecure DLL	Vulnerable Service
-------------	------------------
Pavshld.dll	PsCtrls.exe, PsImSvc.exe, PavFnSvr.exe, PskSvc.exe
ImFilter.dll2	PsImSvc.exe
ImFilter.dll3	PsImSvc.exe
ImFilter.dll4	PsImSvc.exe

In addition to the above DLLs, Panda Internet Security 2012 also loads ham.dll insecurely.