Vulnerability Alert

Cisco Secure Access Control System Admin/View Page Cross-Site Request Forgery Vulnerability

 
Threat Type:CWE-352: Cross-Site Request Forgery (CSRF)
IntelliShield ID:30075
Version:1
First Published:2013 July 15 15:57 GMT
Last Published:2013 July 15 15:57 GMT
Port: Not available
CVE:CVE-2013-3424
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Mild Damage
CVSS Base:4.3 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:3.6
 
Version Summary:Cisco Secure Access Control System contains a vulnerability that could allow an unauthenticated, remote attacker to conduct cross-site request forgery attacks. Updates are available.
 
 
Description
A vulnerability in the Cisco Access Control System (ACS) Administration and View pages could allow an unauthenticated, remote attacker to perform a cross-site request forgery (CSRF) attack.

The vulnerability is due to insufficient CSRF protections. An attacker could exploit this vulnerability by convincing an authenticated ACS user to access a malicious link.

Cisco has confirmed this vulnerability in a security notice and released software updates.
 
Warning Indicators
At the time this alert was first published, Cisco ACS 5.4.0.46.3 and prior were vulnerable. Later releases of Cisco ACS may also be affected.
 
IntelliShield Analysis
To exploit the vulnerability, the attacker may provide a link to a malicious site and may persuade the user to follow the link by using misleading language and instructions.

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-2013-3424

Customers should refer to Cisco bug ID CSCud75177 for the most complete list of affected product versions.
 
Impact
An unauthenticated, remote attacker could exploit this vulnerability to submit arbitrary requests to the affected device with the privileges of an authenticated user. Successful exploitation could allow an attacker to conduct further attacks.
 
Technical Information
The vulnerability is due to insufficient CSRF protections imposed by an affected device.

An unauthenticated, remote attacker could exploit this vulnerability by convincing a user to visit a malicious website. If successful, the attacker could submit arbitrary requests to the affected device with the privileges of an authenticated user. Successful exploitation could be used to conduct further attacks.
 
Safeguards
Administrators are advised to apply the appropriate updates.

Users are advised not to open email messages from suspicious or unrecognized sources. If users cannot verify that links or attachments included in email messages are safe, they are advised not to open them.

For additional information about cross-site request forgery attacks and potential mitigation methods, see the Cisco Applied Mitigation Bulletin Understanding Cross-Site Request Forgery Threat Vectors.

Administrators are advised to monitor affected systems.
 
Patches/Software
Cisco customers with active contracts should contact their Cisco support team for assistance in upgrading to a software version that includes fixes for this vulnerability. Cisco customers without contracts may contact the Cisco Technical Assistance Center at 1-800-553-2447 or 1-408-526-7209 or via email at tac@cisco.com for assistance.
 
Alert History
 
Initial Release


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

Primary Products:
CiscoCisco Secure Access Control System (ACS) 5.3 Base, .0.6, .0.40, .0.40.1, .0.40.2, .0.40.3, .0.40.4, .0.40.5, .0.40.6, .0.40.7 | 5.4 Base, .0.46.1, .0.46.2, .0.46.3

Associated Products:
N/A




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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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