search menu icon-carat-right cmu-wordmark

CERT Coordination Center


Open Technology Real Services nested tags cross-site scripting vulnerability

Vulnerability Note VU#511404

Original Release Date: 2012-08-30 | Last Revised: 2012-08-30

Overview

Open Technology Real Services (OTRS) is susceptible to a cross-site scripting vulnerability when viewing HTML webpages with nested tags.

Description

Open Technology Real Services (OTRS) contains a cross-site scripting (CWE-79) vulnerability in the email body. An attacker may be able to load arbitrary script in the context of the user's browser when they view a specifically crafted email message containing an invalid HTML structure with nested tags.

Proof-of-Concept:

<s<script>...</script><script>...<cript type="text/javascript">
document.write("Hello World!");
alert('Mike was here!');;
</s<script>//<cript>


Additional details may be found in the OTRS advisory.

Impact

An attacker may be able to execute arbitrary script in the context of the user's browser.

Solution

Apply an Update

The OTRS advisory states: This vulnerability is fixed in OTRS 2.4.14, 3.0.16 and 3.1.10 and it is recommended to upgrade to one of these versions.

Vendor Information

511404
Expand all

OTRS

Notified:  August 27, 2012 Updated:  August 30, 2012

Status

  Affected

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

We are not aware of further vendor information regarding this vulnerability.

Vendor References

http://www.otrs.com/de/open-source/community-news/security-advisories/security-advisory-2012-02/

Addendum

There are no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.


CVSS Metrics

Group Score Vector
Base 6.1 AV:N/AC:H/Au:N/C:P/I:C/A:N
Temporal 4.8 E:POC/RL:OF/RC:C
Environmental 4.8 CDP:ND/TD:ND/CR:ND/IR:ND/AR:ND

References

Credit

Thanks to Mike Eduard of Znuny GmbH for reporting this vulnerability.

This document was written by Michael Orlando.

Other Information

CVE IDs: CVE-2012-4600
Date Public: 2012-08-30
Date First Published: 2012-08-30
Date Last Updated: 2012-08-30 16:57 UTC
Document Revision: 9

Sponsored by the Department of Homeland Security Office of Cybersecurity and Communications.