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Category:   Application (Security)  >   McAfee Firewall Reporter Vendors:   McAfee
McAfee Firewall Reporter '' Authentication Bypass Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1025314
SecurityTracker URL:
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Apr 11 2011
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to
Description:   A vulnerability was reported in McAfee Firewall Reporter. A remote user can bypass authentication and execute arbitrary code on the target system.

The '' script does not validate the contents of an authentication file. A remote user can supply a specially crafted cgisess cookie value that points to an arbitrary existing file on the target server to be authenticated.

The vendor was notified on September 22, 2010.

Andrea Micalizzi aka rgod reported this vulnerability via TippingPoint's Zero Day Initiative.

Impact:   A remote user can bypass authentication and then execute arbitrary code on the target system.
Solution:   The vendor has issued a fix (; in February 2011).

The vendor's advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Authentication error
Underlying OS:  Windows (NT), Windows (2000), Windows (2003)

Message History:   None.

 Source Message Contents

Subject:  ZDI-11-117: McAfee Firewall Reporter isValidClient Authentication Bypass Vulnerability

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

April 11, 2011

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

-- Affected Vendors:

-- 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:

-- 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 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:

-- 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

-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, The Zero Day Initiative (ZDI) represents 
a best-of-breed model for rewarding security researchers for responsibly
disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

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used. TippingPoint does not re-sell the vulnerability details or any
exploit code. Instead, upon notifying the affected product vendor,
TippingPoint provides its customers with zero day protection through
its intrusion prevention technology. Explicit details regarding the
specifics of the vulnerability are not exposed to any parties until
an official vendor patch is publicly available. Furthermore, with the
altruistic aim of helping to secure a broader user base, TippingPoint
provides this vulnerability information confidentially to security
vendors (including competitors) who have a vulnerability protection or
mitigation product.

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