Vulnerability Alert

Cisco Unified Communications Domain Manager High CPU Utilization Vulnerability

 
Threat Type:CWE-399: Resource Management Errors
IntelliShield ID:29139
Version:1
First Published:2013 April 30 21:02 GMT
Last Published:2013 April 30 21:02 GMT
Port: Not available
CVE:CVE-2013-1230
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Harassment
CVSS Base:5.0 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:4.8
 
Version Summary:Cisco Unified Communications Domain Manager contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service condition on a targeted device. Updates are available.
 
 
Description
Cisco Unified Communications Domain Manager contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition.

The vulnerability is due to insufficient optimization of resources when the affected system is flooded with crafted UDP packets. An unauthenticated, remote attacker could exploit this vulnerability by sending malicious UDP packets to the affected system. A successful exploit could allow the attacker to cause high CPU utilization on the device, resulting in a DoS condition for legitimate users.

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 Unified Communications Domain Manager versions 8.6, 8.6.2, 9.0, and 9.0.1 were vulnerable. Later versions of Cisco Unified Communications Domain Manager may also be affected.
 
IntelliShield Analysis
To exploit this vulnerability, an attacker may require access to trusted, internal networks to send crafted requests to the affected software. This access requirement could limit the likelihood of a successful 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 notice for bug ID CSCug47057 at the following link: CVE-2013-1230
 
Impact
An unauthenticated, remote attacker could exploit this vulnerability to cause the device to utilize abnormally high CPU resources, resulting in a DoS condition for legitimate users.
 
Technical Information
The vulnerability is due to insufficient optimization of resources when the affected system is flooded with crafted UDP packets.

An unauthenticated, remote attacker could exploit this vulnerability by sending crafted UDP packets to the affected system. When the malicious packets are processed, CPU utilization will be abnormally high. A successful exploit could allow the attacker to cause the device to utilize abnormally high CPU resources, resulting in a DoS condition for legitimate users. When the malicious UDP packet attack halts, CPU utilization returns to normal.
 
Safeguards
Administrators are advised to apply the appropriate updates.

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

Administrators are advised to monitor affected systems.

Understanding activity on the network provides information and visibility that can be used to identify potential security incidents. Organizations should log events from devices and review the logged data to provide insight into anomalies or malicious activity. For logging best practices, see the Cisco Guide to Harden Cisco IOS Devices.

Network traffic should be monitored for security-related network activity. NetFlow identifies security-related network activity. For NetFlow configuration details, see the Introduction to Cisco IOS NetFlow - A Technical Overview.

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.

 
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 Communications Domain Manager 8.6 Base, .2 | 9.0 Base, .1

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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