OTRS contains a cross-site scripting vulnerability

Overview

Open Technology Real Services (OTRS) contains a cross-site scripting (XSS) (CWE-79) vulnerability in the body of HTML emails viewed within the OTRS application.

Description

OTRS is an open source Help Desk and ITIL® V3 compliant IT Service Management platform.

OTRS Security Advisory 2012-03 states:

This advisory covers vulnerabilities discovered in the OTRS core system. This is a variance of the XSS vulnerability, where an attacker could send a specially prepared HTML email to OTRS which would cause JavaScript code to be executed in your browser while displaying the email. In this case this is achieved by using javascript source attributes with whitespaces.

Affected by this vulnerability are all releases of OTRS 2.4.x up to and including 2.4.14, 3.0.x up to and including 3.0.16 and 3.1.x up to and including 3.1.10.

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Impact

A remote attacker may be able to perform a cross-site scripting attack against a logged in OTRS user by sending a specifically crafted HTML email.

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Solution

Apply an Update

OTRS 2.4.15, 3.0.17 and 3.1.11 were released to address this vulnerability.

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Vendor Information

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OTRS Affected

Notified: September 07, 2012 Updated: October 17, 2012

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

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

Vendor References

• <http://www.otrs.com/en/open-source/community-news/security-advisories/security-advisory-2012-03/&gt;

CVSS Metrics

Group	Score	Vector
Base	5	AV:N/AC:L/Au:N/C:N/I:P/A:N
Temporal	3.9	E:POC/RL:OF/RC:C
Environmental	2.9	CDP:ND/TD:M/CR:ND/IR:ND/AR:ND

References

• <http://www.otrs.com/en/open-source/community-news/security-advisories/security-advisory-2012-03/&gt;
• <http://www.otrs.com/en/open-source/community-news/releases-notes/&gt;
• <http://znuny.com/en/#!/advisory/ZSA-2012-03&gt;
• <http://cwe.mitre.org/data/definitions/79.html&gt;

Acknowledgements

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

This document was written by Jared Allar.

Other Information

CVE IDs:	CVE-2012-4751
Date Public:	2012-10-22 Date First Published: