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>> Apache Tomcat "UTF-8" Remote Directory Traversal Vulnerability

Title : Apache Tomcat "UTF-8" Remote Directory Traversal Vulnerability
VUPEN ID : VUPEN/ADV-2008-2343
CVE ID : CVE-2008-2938
CWE ID : CWE-22
Rated as : Moderate Risk 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2008-08-12


Technical Description    Receive VUPEN Security alerts in a Text format  Receive VUPEN Security alerts in a PDF format  Receive VUPEN Security alerts in an XML format 

A vulnerability has been identified in Apache Tomcat, which could be exploited by attackers to gain unauthorized access to arbitrary files on a vulnerable system. This issue is caused by an input validation error when a context is configured with allowLinking="true" and the connector is configured with URIEncoding set tot "UTF-8", which could be exploited to download arbitrary files from an affected server via directory traversal attacks.

Affected Products

Apache Tomcat versions 6.0.0 through 6.0.16
Apache Tomcat versions 5.5.0 through 5.5.26
Apache Tomcat versions 4.1.0 through 4.1.37

Solution

Upgrade to Apache Tomcat version 6.0.18 :
http://tomcat.apache.org/download-60.cgi

Apply patches for Apache Tomcat 4.x and 5.x :
http://tomcat.apache.org/svn.html

References

http://www.vupen.com/english/advisories/2008/2343
http://tomcat.apache.org/security-6.html
http://tomcat.apache.org/security-5.html
http://tomcat.apache.org/security-4.html

Credits

Vulnerability reported by Simon Ryeo.

ChangeLog

2008-08-12 : Initial release

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