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                                   CERT-Renater

                        Note d'Information No. 2007/VULN424
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DATE                      : 07/11/2007

HARDWARE PLATFORM(S)      : Cisco Unified MeetingPlace.

OPERATING SYSTEM(S)       : Cisco Unified MeetingPlace software.

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Cisco Security Response: Cisco Unified MeetingPlace XSS Vulnerability

Document ID: 99855

http://www.cisco.com/warp/public/707/cisco-sr-20071107-mp.shtml

Revision 1.0

For Public Release 2007 November 07 1300 UTC (GMT)

- ---------------------------------------------------------------------

Cisco Response
==============

This is the Cisco PSIRT response to an issue that was discovered and
reported to Cisco by Joren McReynolds regarding a cross-site
scripting (XSS) vulnerability in Cisco Unified MeetingPlace Web
Conferencing.

The original report is available at the following link:
http://secunia.com/advisories/26462/

We greatly appreciate the opportunity to work with researchers on
security vulnerabilities and welcome the opportunity to review and
assist in product reports.

This vulnerability is documented in Cisco bug ID CSCsk17122.

This Cisco Security Response is posted at the following link:

http://www.cisco.com/warp/public/707/cisco-sr-20071107-mp.shtml.

This vulnerability has been assigned CVE ID CVE-2007-5581.

Additional Information
======================

Cisco Unified MeetingPlace Web Conferencing (MeetingPlace) provides
real-time collaboration functionality to an organization's intranet
and extranet and integrates MeetingPlace with a web server, thus
providing users with a browser-based interface. Web Conferencing
enables users to schedule and attend conferences, access meeting
materials, and collaborate on documents from common web browsers.

MeetingPlace is vulnerable to Cross Site Scripting (XSS) attacks from
the login screen. When this XSS vulnerability is exploited, malicious
code or script is embedded within the URL and associated with
FirstName or LastName parameters.

The malicious code typically takes the form of a script that is
embedded in the URL of a link. The malicious code may also be stored
on the vulnerable server or a malicious website. An attacker could
try to convince an unsuspecting user to follow a malicious link to a
vulnerable MeetingPlace server that injects (reflects) the malicious
code back to the user's browser.

Workarounds
===========

There are no known workarounds for this vulnerability. Cisco
recommends applying a hotfix to address the vulnerability.

+---------------------------------------+
| Affected         |                    |
| software         | Hotfix             |
| versions         |                    |
|------------------+--------------------|
| 5.3 and prior    | Affected, no       |
| versions         | hotfix available   |
|------------------+--------------------|
| 5.4              | 5.4.156.2E         |
|------------------+--------------------|
| 6.0              | 6.0.244.1A         |
+---------------------------------------+

For additional information on XSS attacks and the methods used to
exploit these vulnerabilities, please refer to the Cisco Applied
Intelligence Response "Understanding Cross-Site Scripting (XSS)
Threat Vectors", which is available at the following link:

http://www.cisco.com/warp/public/707/cisco-air-20060922-understanding-xss.shtml

Additional Information
======================

THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY
KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE
INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS
AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS
DOCUMENT AT ANY TIME.

Revision History
================

+---------------------------------------+
| Revision |                  | Initial |
| 1.0      | 2007-November-07 | public  |
|          |                  | release |
+---------------------------------------+

Cisco Security Procedures
=========================

Complete information on reporting security vulnerabilities in Cisco
products, obtaining assistance with security incidents, and
registering to receive security information from Cisco, is available
on Cisco's worldwide website at
http://www.cisco.com/en/US/products/products_security_vulnerability_policy.html.

This includes instructions for press inquiries regarding Cisco
security notices. All Cisco security advisories are available at
http://www.cisco.com/go/psirt

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