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Category:   Application (Web Server/CGI)  >   Apache Tomcat Vendors:   Apache Software Foundation
Tomcat Input Validation Holes in the JSP Examples, Manager, and Host Manager Permit Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1018245
SecurityTracker URL:  http://securitytracker.com/id/1018245
CVE Reference:   CVE-2007-2449, CVE-2007-2450   (Links to External Site)
Date:  Jun 14 2007
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Vendor Confirmed:  Yes  
Version(s): 4.0.0 to 4.0.6, 4.1.0 to 4.1.36, 5.0.0 to 5.0.30, 5.5.0 to 5.5.24, 6.0.0 to 6.0.13
Description:   Two vulnerabilities were reported in Tomcat. A remote user can conduct cross-site scripting attacks.

The JSP examples web application does not properly filter HTML code from user-supplied input before displaying the input. A remote user can create a specially crafted URL that, when loaded by a target user, will 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 URL is provided:

http://[target]:[port]/jsp-examples/snp/snoop.jsp;<script>alert()</script>test.jsp

This vulnerability was reported to JPCERT by a researcher.

The Tomcat Manager and Host Manager web applications also do not properly filter HTML code. A remote user can conduct cross-site scripting attacks against authenticated target users.

Daiki Fukumori, Secure Sky Technology, discovered this vulnerability.

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:   No solution was available at the time of this entry.

The vendor has provided the following mitigation instructions [quoted]:

Undeploy the examples web application(s).

Log out of the Manager or Host Manager application (close the
browser) once tasks requiring use of the manager have been completed.

Vendor URL:  tomcat.apache.org/ (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jul 17 2007 (Red Hat Issues Fix) Tomcat Input Validation Holes in the JSP Examples, Manager, and Host Manager Permit Cross-Site Scripting Attacks
Red Hat has released a fix for Red Hat Enterprise Linux 5.
Jul 1 2008 (Apple Issues Fix for Mac OS X) Tomcat Input Validation Holes in the JSP Examples, Manager, and Host Manager Permit Cross-Site Scripting Attacks
Apple has issued a fix for Mac OS X.
Jul 2 2008 (Sun Issues Fix for Solaris) Tomcat Input Validation Holes in the JSP Examples, Manager, and Host Manager Permit Cross-Site Scripting Attacks
Sun has issued a fix for Solaris 10.



 Source Message Contents

Subject:  [Full-disclosure] [CVE-2007-2449] Apache Tomcat XSS vulnerabilities

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CVE-2007-2449: Apache Tomcat XSS vulnerabilities in the JSP examples

Severity: low (cross-site scripting)

Vendor:
The Apache Software Foundation

Versions Affected:
Tomcat 4.0.0 to 4.0.6
Tomcat 4.1.0 to 4.1.36
Tomcat 5.0.0 to 5.0.30
Tomcat 5.5.0 to 5.5.24
Tomcat 6.0.0 to 6.0.13

Description:
The JSP examples web application displays does not escape some user
provided data before including it in the output. This enables a XSS
attack.

Mitigation:
1. Undeploy the examples web application(s).

Example:
http://host:port/jsp-examples/snp/snoop.jsp;<script>alert()</script>test.jsp

Credit:
These issues were discovered by an unknown security researcher and
reported to JPCERT.

References:
http://tomcat.apache.org/security.html

Mark Thomas




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