Operating System:

[WIN]

Published:

12 April 2011

Protect yourself against future threats.

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2011.0403
        McAfee Firewall Reporter GeneralUtilities.pm isValidClient
                    Authentication Bypass Vulnerability
                               12 April 2011

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           McAfee Firewall Reporter
Publisher:         Zero Day Initiative
Operating System:  Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution:        Patch/Upgrade

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

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McAfee Firewall Reporter GeneralUtilities.pm isValidClient Authentication 
Bypass Vulnerability
ZDI-11-117: April 11th, 2011
CVSS Score

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

Affected Vendors

      McAfee

Affected Products

      Firewall Reporter

TippingPoint IPS Customer Protection
TippingPoint IPS customers are protected against this vulnerability by Digital 
Vaccine protection filter ID 10522. For further product information on the 
TippingPoint IPS:

      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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