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Category:   Application (Web Server/CGI)  >   Apache Tomcat Vendors:   Apache Software Foundation
Apache Tomcat Manager Input Validation Hole Permits Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1025026
SecurityTracker URL:  http://securitytracker.com/id/1025026
CVE Reference:   CVE-2011-0013   (Links to External Site)
Date:  Feb 7 2011
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 5.5.0 to 5.5.31, 6.0.0 to 6.0.29, 7.0.0 to 7.0.5
Description:   A vulnerability was reported in Apache Tomcat Manager. A remote user can conduct cross-site scripting attacks.

The HTML Manager interface does not properly filter HTML code from user-supplied input before displaying the input. A remote user can cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the Tomcat software 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.

A demonstration exploit string is provided:

<display-name>&lt;script&gt;alert('hi');&lt;/script&gt;</display-name>

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the Tomcat software, 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.
Solution:   The vendor has issued a fix (7.0.5).
Vendor URL:  tomcat.apache.org/security.html (Links to External Site)
Cause:   Input validation error
Underlying OS:   Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
May 20 2011 (Red Hat Issues Fix) Apache Tomcat Manager Input Validation Hole Permits Cross-Site Scripting Attacks   (bugzilla@redhat.com)
Red Hat has issued a fix for Red Hat Enterprise Linux 6.
Jun 23 2011 (Red Hat Issues Fix for JBoss Enterprise Web Server) Apache Tomcat Manager Input Validation Hole Permits Cross-Site Scripting Attacks   (bugzilla@redhat.com)
Red Hat has issued a fix for JBoss Enterprise Web Server for Red Hat Enterprise Linux 4, 5, and 6, Solaris, and Microsoft Windows.
Jun 23 2011 (Red Hat Issues Fix for JBoss Enterprise Web Server) Apache Tomcat Manager Input Validation Hole Permits Cross-Site Scripting Attacks   (bugzilla@redhat.com)
Red Hat has issued a fix for JBoss Enterprise Web Server for Red Hat Enterprise Linux 4, 5, and 6.
Dec 21 2011 (Red Hat Issues Fix) Apache Tomcat Manager Input Validation Hole Permits Cross-Site Scripting Attacks   (bugzilla@redhat.com)
Red Hat has issued a fix for Red Hat Enterprise Linux 5.



 Source Message Contents

Date:  Sat, 05 Feb 2011 02:05:50 +0000
Subject:  [SECURITY] CVE-2011-0013 Apache Tomcat Manager XSS vulnerability

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

CVE-2011-0013 Apache Tomcat Manager XSS vulnerability

Severity: Low

Vendor: The Apache Software Foundation

Versions Affected:
- - Tomcat 7.0.0 to 7.0.5
- - Tomcat 6.0.0 to 6.0.29
- - Tomcat 5.5.0 to 5.5.31
- - Earlier, unsupported versions may also be affected

Description:
The HTML Manager interface displayed web applciation provided data, such
as display names, without filtering. A malicious web application could
trigger script execution by an administartive user when viewing the
manager pages.

Example:
<display-name>&lt;script&gt;alert('hi');&lt;/script&gt;</display-name>

Mitigation:
Users of affected versions should apply one of the following mitigations:
- - Upgrade to a Tomcat version where this issue is fixed
- - Undeploy untrusted web applications
- - Remove the Manager application

Credit:
The 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
http://tomcat.apache.org/security-5.html
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