Products & Services
Support

Product Categories


Popular Downloads


Manage Software

How to Buy

For Home

Linksys Products Store
Linksys is now part of Belkin
Products for everyone

All Ordering Options

Training & Events Partners
Guest

Vulnerability Alert

Cisco Unified Communications Manager Authentication Denial of Service Vulnerability

 
Threat Type:CWE-399: Resource Management Errors
IntelliShield ID:29333
Version:1
First Published:2013 May 15 20:12 GMT
Last Published:2013 May 15 20:12 GMT
Port: Not available
CVE:CVE-2013-1188
BugTraq ID:59866
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Mild Damage
CVSS Base:5.0 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:4.4
 
Version Summary:Cisco Unified Communications Manager contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service condition. Updates are available.
 
 
Description
A vulnerability in device authentication of Cisco Unified Communications Manager (CUCM) could allow an unauthenticated, remote attacker to impact application response.

The vulnerability is due to incomplete throttling of authentication requests. An attacker could exploit this vulnerability by sending multiple authentication requests in a short period of time. An exploit could allow the attacker to degrade the performance of the CUCM application.

Cisco has confirmed the vulnerability in a security notice and has released software updates.
 
Warning Indicators
At the time this alert was first published, Cisco CUCM versions 9.1(1) and prior were vulnerable. Later versions of Cisco CUCM may also be affected.
 
IntelliShield Analysis
To exploit this vulnerability, an attacker may require access to a trusted, internal network to send authentication requests to the targeted system. This access requirement could limit the likelihood of a successful exploit.

Customers are advised to review the bug report in the "Vendor Announcements" section for a current list of affected versions.
 
Vendor Announcements
Cisco has released a security notice for bug ID CSCud39515 at the following link: CVE-2013-1188
 
Impact
An unauthenticated, remote attacker could exploit this vulnerability to degrade the performance of the CUCM application, impacting the application response time, which could result in a denial of service condition.
 
Technical Information
The vulnerability is due to incomplete throttling of authentication requests processed by the affected software.

An unauthenticated, remote attacker could exploit this vulnerability by sending a series of authentication requests to a targeted system in a short time frame. Processing the multiple requests could degrade the performance of the CUCM application, resulting in a DoS condition.
 
Safeguards
Administrators are advised to apply the appropriate updates.

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

It is critical to prevent unauthorized direct communication to network devices. Restrict network traffic destined for the network infrastructure to protect against reconnaissance and DoS attacks. For configuration details, see Protecting Your Core: Infrastructure Protection Access Control Lists.

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 e-mail 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 Unified Communications Manager 8.5 Base | 8.6 Base | 9.0 Base | 9.0(1) Base | 9.1 Base | 9.1(1) 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.
Powered by  IntelliShield