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U-244: McAfee Email Gateway Lets Remote Users Bypass Authentication and Conduct Cross-Site Scripting and Directory Traversal Attacks

August 27, 2012 - 7:00am

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PROBLEM:

McAfee Email Gateway Lets Remote Users Bypass Authentication and Conduct Cross-Site Scripting and Directory Traversal Attacks

PLATFORM:

McAfee Email Gateway (MEG) 7.0.0 and 7.0.1 (MEG 6.7.x is NOT affected.)
McAfee Email and Web Security (EWS) 5.6 Patch 3 and earlier
McAfee Email and Web Security (EWS) 5.5 Patch 6 and earlier

ABSTRACT:

Several vulnerabilities were reported in McAfee Email Gateway.

reference LINKS:

McAfee Security Bulletin ID:    SB10026
SecurityTracker Alert ID:  1027444
Bugtraq ID:  55184  
CVE-2012-4595, CVE-2012-4596, CVE-2012-4597

IMPACT ASSESSMENT:

Medium

Discussion

A remote user can bypass authentication and obtain a valid session ID as the admin user [CVE-2012-4595].

A remote user can supply a specially crafted request to view files on target system [CVE-2012-4596].

The Console/Dashboard does not properly filter HTML code from user-supplied input before displaying the input [CVE-2012-4597]. A remote user can cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the McAfee Email Gateway and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

Impact:

Several vulnerabilities were reported in McAfee Email Gateway. A remote user can bypass authentication on the target system. A remote user can conduct cross-site scripting attacks. A remote user can view files on the target system.

Solution:

The vendor has issued a fix (7.0.1 Patch 2; pending).

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