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Zero Day Initiative Advisory 11-117

Zero Day Initiative Advisory 11-117
Posted Apr 11, 2011
Authored by Tipping Point | Site zerodayinitiative.com

Zero Day Initiative Advisory 11-117 - 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.

tags | advisory, remote, arbitrary
SHA-256 | 484b7d2966d0efd9dfa5bcfca9f1b1a77fd8ff8ae233db8ccfa43063f51a9198

Zero Day Initiative Advisory 11-117

Change Mirror Download
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

-- 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:

http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is
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.

Our vulnerability disclosure policy is available online at:

http://www.zerodayinitiative.com/advisories/disclosure_policy/

Follow the ZDI on Twitter:

http://twitter.com/thezdi
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