Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title Open Technology Real Services nested tags cross-site scripting vulnerability
Informations
Name VU#511404 First vendor Publication 2012-08-30
Vendor VU-CERT Last vendor Modification 2012-08-30
Severity (Vendor) N/A Revision M

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:H/Au:N/C:N/I:P/A:N)
Cvss Base Score 2.6 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity High
Cvss Expoit Score 4.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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)

GroupScoreVector
Base6.1AV:N/AC:H/Au:N/C:P/I:C/A:N
Temporal4.8E:POC/RL:OF/RC:C
Environmental4.8CDP:ND/TD:ND/CR:ND/IR:ND/AR:ND

References

  • http://www.otrs.com/de/open-source/community-news/security-advisories/security-advisory-2012-02/
  • http://cwe.mitre.org/data/definitions/79.html
  • http://znuny.com/en/#!/advisory/ZSA-2012-02

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

Feedback

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

This product is provided subject to the Notification as indicated here: http://www.us-cert.gov/legal.html#notify

Original Source

Url : http://www.kb.cert.org/vuls/id/511404

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-79 Failure to Preserve Web Page Structure ('Cross-site Scripting') (CWE/SANS Top 25)

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:17986
 
Oval ID: oval:org.mitre.oval:def:17986
Title: DSA-2536-1 otrs2 - cross-site scripting
Description: It was discovered that Open Ticket Request System (OTRS), a ticket request system, contains a cross-site scripting vulnerability when email messages are viewed using Internet Explorer. This update also improves the HTML security filter to detect tag nesting.
Family: unix Class: patch
Reference(s): DSA-2536-1
CVE-2012-2582
CVE-2012-4600
 Version: 7
Platform(s): Debian GNU/Linux 6.0
Debian GNU/kFreeBSD 6.0
 Product(s): otrs2
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 51
Application 7

ExploitDB Exploits

id Description
2012-08-31 OTRS Open Technology Real Services 3.1.8 and 3.1.9 XSS Vulnerability

Nessus® Vulnerability Scanner

Date Description
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2012-620.nasl - Type : ACT_GATHER_INFO
2013-04-20 Name : The remote Mandriva Linux host is missing a security update.
File : mandriva_MDVSA-2013-112.nasl - Type : ACT_GATHER_INFO
2013-02-26 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_d60199df7fb311e29c5a000d601460a4.nasl - Type : ACT_GATHER_INFO
2013-01-02 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_95a69d1a52a511e2a2891c4bd681f0cf.nasl - Type : ACT_GATHER_INFO
2012-08-31 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2536.nasl - Type : ACT_GATHER_INFO