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Vulnerability Alert

Cisco WebEx Training Center Open Redirect Vulnerability

 
Threat Type:CWE-20: Input Validation
IntelliShield ID:32146
Version:1
First Published:2013 December 13 15:04 GMT
Last Published:2013 December 13 15:04 GMT
Port: Not available
CVE:CVE-2013-6971
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Harassment
CVSS Base:4.3 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:4.1
Related Resources:
View related Security Notice
 
 
Version Summary:Cisco WebEx Training Center contains a vulnerability that could allow an unauthenticated, remote attacker to conduct URL redirection attacks. Updates are not available.
 
 
Description
A vulnerability in Cisco WebEx Training Center could allow an unauthenticated, remote attacker to cause the Cisco WebEx Training Center to issue a redirect to an arbitrary attacker-supplied URL.

The vulnerability is due to an open redirect issue in Cisco WebEx Training Center. An attacker could exploit this vulnerability by convincing a user to click a crafted URL that would cause Cisco WebEx Training Center to redirect the user to an attacker-specified website.

Cisco has confirmed the vulnerability in a security notice; however, software updates are not available.
 
Warning Indicators
Cisco WebEx Training Center is vulnerable.
 
IntelliShield Analysis
To exploit the vulnerability, the attacker may provide a link that directs a user to a malicious site and use misleading language or instructions to persuade the user to follow the provided link.

Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.
 
Vendor Announcements
Cisco has released a security notice at the following link: CVE-2013-6971

Customers are advised to consult Cisco bug ID CSCul57140 for the most complete list of affected product versions.
 
Impact
An unauthenticated, remote attacker could exploit this vulnerability to conduct URL redirection attacks on a targeted system. A successful exploit could aid the attacker in conducting further attacks.
 
Technical Information
The vulnerability is due to an open redirect issue in the affected software.

An unauthenticated, remote attacker could exploit this vulnerability by convincing a user to click a crafted URL. If successful, the attacker could have the ability to redirect the targeted user to an attacker-specified website which could aid the attacker in conducting further attacks.
 
Safeguards
Administrators are advised to contact the vendor regarding future updates and releases.

Users are advised not to visit websites or follow links that have suspicious characteristics or cannot be verified as safe.

Administrators are advised to allow only trusted users to have network access.

Administrators are advised to monitor affected systems.
 
Patches/Software
Software updates are not available.
 
Alert History
 
Initial Release


Product Sets
 
The security vulnerability applies to the following combinations of products.

Primary Products:
CiscoCisco WebEx Training Center Original Release Base

Associated Products:
N/A




Alerts and bulletins on the Cisco Security Intelligence Operations Portal are highlighted by analysts in the Cisco Threat Operations Center and represent a subset of the comprehensive content that is available through Cisco Security IntelliShield Alert Manager Service. This customizable threat and vulnerability alert service provides security staff with access to timely, accurate, and credible information about threats and vulnerabilities that may affect their environment.


LEGAL DISCLAIMER
The urgency and severity ratings of this alert are not tailored to individual users; users may value alerts differently based upon their network configurations and circumstances. THE ALERT, AND INFORMATION CONTAINED THEREIN, ARE PROVIDED ON AN "AS IS" BASIS AND DO NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE ALERT, AND INFORMATION CONTAINED THEREIN, OR MATERIALS LINKED FROM THE ALERT, IS AT YOUR OWN RISK. INFORMATION IN THIS ALERT AND ANY RELATED COMMUNICATIONS IS BASED ON OUR KNOWLEDGE AT THE TIME OF PUBLICATION AND IS SUBJECT TO CHANGE WITHOUT NOTICE. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE ALERTS AT ANY TIME.
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