bugtraq - ZDI-11-117: McAfee Firewall Reporter GeneralUtilities.pm isValidClient Authentication Bypass Vulnerability

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Message-ID: <AF6E290B52139041BD6CA591212E455B5760A0B06B@GVW0442EXB.americas.hpqcorp.net>
Date: Mon, 11 Apr 2011 16:53:55 +0000
From: ZDI Disclosures <zdi-disclosures@...pingpoint.com>
To: "'full-disclosure@...ts.grok.org.uk'" <full-disclosure@...ts.grok.org.uk>,
	"'bugtraq@...urityfocus.com'" <bugtraq@...urityfocus.com>
Subject: ZDI-11-117: McAfee Firewall Reporter GeneralUtilities.pm
 isValidClient Authentication Bypass Vulnerability

ZDI-11-117: McAfee Firewall Reporter GeneralUtilities.pm isValidClient Authentication Bypass Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-11-117

April 11, 2011

-- CVSS:
10, (AV:N/AC:L/Au:N/C:C/I:C/A:C)

-- Affected Vendors:
McAfee  

-- Affected Products:
McAfee   Firewall Reporter

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 10522. 
For further product information on the TippingPoint IPS, visit:

    http://www.tippingpoint.com

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of McAfee Firewall Reporter. Authentication is
not required to exploit this vulnerability. 

The specific flaw exists within the code responsible for authenticating
users. The GernalUtilities.pm file contains code to validate sessions by
parsing cookie values without sanitization. The faulty logic simply
checks for the existence of a particular file, without verifying its
contents. By using a directory traversal technique an attacker can point
the cgisess cookie value to an arbitrary file that exists on the server
and thus bypass authentication.

-- Vendor Response:
McAfee   states:
Fixed February 9, 2011
Bulletin modified April 11, 2011:
https://kc.mcafee.com/corporate/index?page=content&id=SB10015

-- Disclosure Timeline:
2010-09-22 - Vulnerability reported to vendor
2011-04-11 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Andrea Micalizzi aka rgod

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