Vulnerability Note VU#511404

Open Technology Real Services nested tags cross-site scripting vulnerability

Original Release date: 30 Aug 2012 | Last revised: 30 Aug 2012

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 (Learn More)

VendorStatusDate NotifiedDate Updated
OTRSAffected27 Aug 201230 Aug 2012
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

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: 30 Aug 2012
  • Date First Published: 30 Aug 2012
  • Date Last Updated: 30 Aug 2012
  • Document Revision: 9

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