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>> Apache Tomcat Cross Site Scripting and Security Bypass Vulnerabilities

Title : Apache Tomcat Cross Site Scripting and Security Bypass Vulnerabilities
VUPEN ID : VUPEN/ADV-2008-2305
CVE ID : CVE-2008-1232 - CVE-2008-2370
CWE ID : CWE-79 - CWE-264
Rated as : Moderate Risk 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2008-08-06


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 

Two vulnerabilities have been identified in Apache Tomcat, which could be exploited by attackers to bypass security restrictions or gain knowledge of sensitive information.

The first issue is caused by an input validation error when processing arguments passed to the "HttpServletResponse.sendError()" call and displayed via the "reason-phrase" field of HTTP response, which could be exploited by attackers to cause arbitrary scripting code to be executed by the user's browser in the security context of an affected Web site.

The second vulnerability is caused due to the target path being normalised before the query string was removed while using a RequestDispatcher, which could be exploited by attackers to access protected content.

Affected Products

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

Solution

Upgrade to Apache Tomcat 6.0.18 :
http://tomcat.apache.org/download-60.cgi
Apply patches for Apache Tomcat 5.x :
http://svn.apache.org/viewvc?rev=680947&view=rev
http://svn.apache.org/viewvc?rev=680949&view=rev
Apply patches for Apache Tomcat 4.x :
http://svn.apache.org/viewvc?rev=680947&view=rev
http://svn.apache.org/viewvc?rev=680948&view=rev
http://svn.apache.org/viewvc?rev=680950&view=rev

References

http://www.vupen.com/english/advisories/2008/2305
http://tomcat.apache.org/security-4.html
http://tomcat.apache.org/security-5.html
http://tomcat.apache.org/security-6.html
http://marc.info/?l=tomcat-user&m=121759964027135&w=2
http://marc.info/?l=tomcat-user&m=121759966427171&w=2

Credits

Vulnerabilities reported by Konstantin Kolinko and Stefano Di Paola (Minded Security Research Labs).

ChangeLog

2008-08-06 : Initial release

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