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Home arrow SecurityAlert Database

Arrow  Topic :

Apache Tomcat 6.0.20 and 5.5.28 unexpected file deletion and/or alteration


Arrow  SecurityAlert : 6978
Arrow  CVE : CVE-2009-2693
Arrow  CWE : CWE-2000
Arrow  SecurityRisk : Medium  Security Risk Medium  (About)
Arrow  Remote Exploit : Yes
Arrow  Local Exploit : No
Arrow  Victim interaction required : No
Arrow  Exploit Available : No
Arrow  Credit : Mark Thomas
Arrow  Published : 29.01.2010

Arrow  Affected Software :
Tomcat 5.5.0 to 5.5.28
Tomcat 6.0.0 to 6.0.20
The unsupported Tomcat 3.x, 4.x and 5.0.x versions may be also
affected.



Arrow  Advisory Content :  

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

CVE-2009-3548: Apache Tomcat unexpected file deletion and/or alteration

Severity: Low

Vendor:
The Apache Software Foundation

Versions Affected:
Tomcat 5.5.0 to 5.5.28
Tomcat 6.0.0 to 6.0.20
The unsupported Tomcat 3.x, 4.x and 5.0.x versions may be also
affected.

Description:
When deploying WAR files, the WAR files were not checked for directory
traversal attempts. This allows an attacker to create arbitrary content
outside of the web root.

Mitigation:
6.0.x users should upgrade to 6.0.24 or apply this patch:
http://svn.apache.org/viewvc?rev=892815&view=rev
5.5.x users should upgrade to 5.5.29 when released or apply this patch:
http://svn.apache.org/viewvc?rev=902650&view=rev
Note: the patches also address CVE-2009-2901 and CVE-2009-2902.
Alternatively, users of all Tomcat versions may mitigate this issue by
manually validating the contents of untrusted WAR files before deployment.

Example:
A WAR file that contains the following entry will overwrite the standard
Windows start-up script when deployed on a default Tomcat installation:
../../bin/catalina.bat

Credit:
This issue was reported to the Apache Tomcat security team by Marc
Schoenefeld of the Red Hat Security Response Team

References:
[1] http://tomcat.apache.org/security.html

Mark Thomas

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Arrow  References :

http://xforce.iss.net/xforce/xfdb/55855
http://www.vupen.com/english/advisories/2010/0213
http://www.securityfocus.com/bid/37944
http://www.securityfocus.com/archive/1/archive/1/509148/100/0/threaded
http://tomcat.apache.org/security-6.html
http://tomcat.apache.org/security-5.html
http://svn.apache.org/viewvc?rev=902650&view=rev
http://svn.apache.org/viewvc?rev=892815&view=rev
http://securitytracker.com/id?1023505
http://secunia.com/advisories/38346
http://secunia.com/advisories/38316




Arrow  Feedback :

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