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Vulnerability Alert

Cisco Unified Communications Manager Command Injection Vulnerability

 
Threat Type:CWE-20: Input Validation
IntelliShield ID:30041
Version:1
First Published:2013 July 17 16:20 GMT
Last Published:2013 July 17 16:20 GMT
Port: Not available
CVE:CVE-2013-3402
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Mild Damage
CVSS Base:6.5 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:5.9
Related Resources:
View related Security Advisory
 
 
Version Summary:Cisco Unified Communications Manager contains a vulnerability that could allow an authenticated, remote attacker to execute arbitrary commands on a targeted device. Updates are not available.
 
 
Description
A vulnerability in Cisco Unified Communications Manager (Unified CM) could allow an authenticated, remote attacker to execute commands on the underlying operating system with the privileges of the database user.

The vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by submitting malicious input to the affected function.

Proof-of-concept code that demonstrates an exploit of this vulnerability is publicly available.

Cisco has confirmed the vulnerability in a security advisory; however, software updates are not available.
 
Warning Indicators
Cisco Unified CM versions 9.1(2) and prior are affected.
 
IntelliShield Analysis
To exploit this vulnerability, an attacker requires authenticated access to the targeted system. Authenticated access may require the attacker to access trusted, internal networks. These access requirements could limit the likelihood of a successful exploit.

Cisco Unified CM version 8.0 reached the End of Software Maintenance on October 23, 2012. Customers using Cisco Unified CM 8.0(x) versions should contact their Cisco support team for assistance in upgrading to a supported version of Cisco Unified CM.

Cisco Unified CM is the only product confirmed to be vulnerable. Additional voice products may be affected by one or more of the individual vulnerabilities that are described in the advisory. The following products are being investigated but have not yet been confirmed as vulnerable:
  • Cisco Emergency Responder
  • Cisco Unified Contact Center Express
  • Cisco Unified Customer Voice Portal
  • Cisco Unified Presence Server/Cisco IM and Presence Service
  • Cisco Unity Connection
 
Vendor Announcements
Cisco has released a security advisory for bug ID CSCuh73440 at the following link: cisco-sa-20130717-cucm
 
Impact
An authenticated, remote attacker could exploit the vulnerability to execute arbitrary commands with the privileges of the database user, which could allow the attacker to launch additional attacks.
 
Technical Information
The vulnerability is due to improper validation of user-supplied input by the affected software.

An authenticated, remote attacker could exploit the vulnerability by submitting crafted input to the affected function on a targeted device. When the malicious input is processed by the underlying operating system on the device, the attacker could execute arbitrary commands with the privileges on the database user, which could allow the attacker to launch additional attacks.
 
Safeguards
Administrators are advised to contact the vendor regarding future updates and releases.

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 Exploitation of the Multiple Vulnerabilities in Cisco Unified Communications Manager

Administrators are advised to allow only trusted users to access local systems.

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

Administrators are advised to allow only privileged users to access administration or management systems.

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

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 Unified Communications Manager 7.1 (5), (5b)

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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