bugtraq - CVE-2012-4431 Apache Tomcat Bypass of CSRF prevention filter

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Message-ID: <50BE536F.6000705@apache.org>
Date: Tue, 04 Dec 2012 19:47:59 +0000
From: Mark Thomas <markt@...che.org>
To: Tomcat Users List <users@...cat.apache.org>
CC: Tomcat Announce List <announce@...cat.apache.org>, announce@...che.org,
  Tomcat Developers List <dev@...cat.apache.org>, bugtraq@...urityfocus.com,
  full-disclosure@...ts.grok.org.uk
Subject: CVE-2012-4431 Apache Tomcat Bypass of CSRF prevention filter

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CVE-2012-4431 Apache Tomcat Bypass of CSRF prevention filter

Severity: Important

Vendor: The Apache Software Foundation

Versions Affected:
- - Tomcat 7.0.0 to 7.0.31
- - Tomcat 6.0.0 to 6.0.35

Description:
The CSRF prevention filter could be bypassed if a request was made to a
protected resource without a session identifier present in the request.

Mitigation:
Users of affected versions should apply one of the following mitigations:
- - Tomcat 7.0.x users should upgrade to 7.0.32 or later
- - Tomcat 6.0.x users should upgrade to 6.0.36 or later

Credit:
This issue was identified by The Tomcat security team

References:
http://tomcat.apache.org/security.html
http://tomcat.apache.org/security-7.html
http://tomcat.apache.org/security-6.html
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