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Vulnerability Alert

Cisco Unified Computing System LDAP User Authentication Bypass Vulnerability

 
Threat Type:CWE-20: Input Validation
IntelliShield ID:29028
Version:1
First Published:2013 April 24 16:21 GMT
Last Published:2013 April 24 16:21 GMT
Port: Not available
CVE:CVE-2013-1182
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Moderate Damage
CVSS Base:9.3 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:7.7
Related Resources:
View related Security Advisory
 
 
Version Summary:Cisco Unified Computing System Software contains a vulnerability that could allow an unauthenticated, remote attacker to gain unauthorized access to a targeted system. Updates are available.
 
 
Description
Cisco Unified Computing System Software contains a vulnerability that could allow an unauthenticated, remote attacker to gain unauthorized access to a targeted system.

The vulnerability is due to improper processing of authentication requests. An unauthenticated, remote attacker could exploit this vulnerability by sending malicious requests to the system.

Cisco has confirmed the vulnerability in a security advisory and has released software updates.
 
Warning Indicators
Cisco Unified Computing System versions prior to 1.0(2h), prior to 1.1(1j), and all 1.3 versions are vulnerable when configured to use Lightweight Directory Access Protocol (LDAP) authentication.
 
IntelliShield Analysis
Attackers must be able to send login requests to the web-based management console to exploit the vulnerability. Depending on network access restrictions, attackers may require access to authorized systems to launch an exploit.

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 advisory for Cisco bug ID CSCtc91207 at the following link: cisco-sa-20130424-ucsmulti
 
Impact
An unauthenticated, remote attacker could exploit this vulnerability to gain unauthorized access to the affected application with the privileges of another system user, allowing the attacker to take actions in the application as the targeted user.
 
Technical Information
The vulnerability is due to improper handling of requests by the Cisco Unified Computing System Manager Web Console login page. Only applications configured to use LDAP authentication providers are affected.

An unauthenticated, remote attacker could exploit this vulnerability by sending malicious login requests to the web-based management console. The processing of the requests could grant the attacker unauthorized access to the application with the privileges of an arbitrary user.
 
Safeguards
Administrators are advised to apply the appropriate updates.

Administrators may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.

The Cisco Applied Intelligence team has created the following companion document to guide administrators in identifying and mitigating attempts to exploit this vulnerability prior to applying updated software: Identifying and Mitigating Multiple Vulnerabilities in Cisco Unified Computing System

Administrators are advised to monitor affected systems.
 
Patches/Software
Cisco customers with active contracts can obtain updates through the Software Center at the following link: Cisco. Cisco customers without contracts can obtain upgrades by contacting the Cisco Technical Assistance Center at 1-800-553-2447 or 1-408-526-7209 or via e-mail at tac@cisco.com.
 
Alert History
 
Initial Release


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

Primary Products:
CiscoCisco Unified Computing System (Managed) 1.0 Base | 1.1 Base | 1.3 Base, (1c), (1m), (1n), (1o), (1p), (1q), (1t), (1w), (1y)

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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