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Cisco Unified Service Monitor and Cisco Unified Operations Manager Remote Code Execution Vulnerabilities

Advisory ID: cisco-sa-20110914-cusm

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20110914-cusm

Revision 1.1

Last Updated  2011 September 22 06:17  UTC (GMT)

For Public Release 2011 September 14 16:00  UTC (GMT)


Summary

Two vulnerabilities exist in Cisco Unified Service Monitor and Cisco Unified Operations Manager software that could allow an unauthenticated, remote attacker to execute arbitrary code on affected servers.

Cisco has released free software updates that address these vulnerabilities.

Workarounds are available to mitigate these vulnerabilities.

This advisory is posted at http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20110914-cusm.

Note:  CiscoWorks LAN Management Solution is also affected by these vulnerabilities. A separate advisory for CiscoWorks LAN Management Solution is available at http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20110914-lms.

Affected Products

Vulnerable Products

All versions of Cisco Unified Service Monitor and Cisco Unified Operations Manager prior to 8.6 are affected.

To determine the Cisco Unified Service Monitor and Cisco Unified Operations Manager software version navigate to Administration > Software Center (Common Services) > Software Update. The Software Update page displays the licensing and software version.

Products Confirmed Not Vulnerable

No other Cisco products other than the CiscoWorks LAN Management Solution are currently known to be affected by these vulnerabilities.

Details

Cisco Unified Service Monitor and Cisco Unified Operations Manager are products from the Cisco Unified Communications Management Suite. They provides a way to continuously monitor active calls supported by the Cisco Unified Communications System.

Two vulnerabilities exist in Cisco Unified Service Monitor and Cisco Unified Operations Manager software that could allow an unauthenticated, remote attacker to execute arbitrary code on affected servers. These vulnerabilities can be triggered by sending a series of crafted packets to the affected server over TCP port 9002.

Both of these vulnerabilities are documented in Cisco bug ID CSCtn42961 ( registered customers only) and have been assigned CVE ID CVE-2011-2738.

Vulnerability Scoring Details

Cisco has provided scores for the vulnerabilities in this advisory based on the Common Vulnerability Scoring System (CVSS). The CVSS scoring in this Security Advisory is done in accordance with CVSS version 2.0.

CVSS is a standards-based scoring method that conveys vulnerability severity and helps determine urgency and priority of response.

Cisco has provided a base and temporal score. Customers can then compute environmental scores to assist in determining the impact of the vulnerability in individual networks.

Cisco has provided an FAQ to answer additional questions regarding CVSS at
http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html .

Cisco has also provided a CVSS calculator to help compute the environmental impact for individual networks at
http://intellishield.cisco.com/security/alertmanager/cvss .

CSCtn42961 - isco Unified Service Monitor Remote Code Execution Vulnerabilities

Calculate the environmental score of CSCtn42961

CVSS Base Score - 10

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Low

None

Complete

Complete

Complete

CVSS Temporal Score - 8.3

Exploitability

Remediation Level

Report Confidence

Functional

Official-Fix

Confirmed

Impact

Successful exploitation of these vulnerabilities could allow an unauthenticated, remote attacker to execute arbitrary code on affected servers.

Software Versions and Fixes

When considering software upgrades, also consult http://www.cisco.com/go/psirt and any subsequent advisories to determine exposure and a complete upgrade solution.

In all cases, customers should exercise caution to be certain the devices to be upgraded contain sufficient memory and that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, contact the Cisco Technical Assistance Center (TAC) or your contracted maintenance provider for assistance.

These vulnerabilities have been corrected in Cisco Unified Service Monitor and Cisco Unified Operations Manager software version 8.6.

Cisco Unified Service Monitor and Cisco Unified Operations Manager software can be downloaded from the following link:

http://www.cisco.com/cisco/software/navigator.html?mdfid=280110371&i=rm

Workarounds

In installations of Cisco Unified Service Monitor or Cisco Unified Operations Manager where these applications are running on the same system, as the DMF Broker, the administrator can change the following registry key as a workaround:

Change the Args parameter of of the registry key HKEY_LOCAL_MACHINE\SOFTWARE\Cisco\Resource Manager\CurrentVersion\Daemons\DfmBroker from --output --port=9002 to --output --port=9002 --accept=127.0.0.1,<hostname>

Note:  <hostname> is the hostname of the Cisco Unified Service Monitor and Cisco Unified Operations Manager system. Restart the Daemon Manager after updating the registry.

Mitigations that can be deployed on Cisco devices within the network are available in the Cisco Applied Mitigation Bulletin companion document for this advisory, which is available at the following link: http://www.cisco.com/warp/public/707/cisco-amb-201100914-cusm-lms.shtml

Obtaining Fixed Software

Cisco has released free software updates that address these vulnerabilities. Prior to deploying software, customers should consult their maintenance provider or check the software for feature set compatibility and known issues specific to their environment.

Customers may only install and expect support for the feature sets they have purchased. By installing, downloading, accessing or otherwise using such software upgrades, customers agree to be bound by the terms of Cisco's software license terms found at http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html , or as otherwise set forth at Cisco.com Downloads at http://www.cisco.com/public/sw-center/sw-usingswc.shtml .

Do not contact psirt@cisco.com or security-alert@cisco.com for software upgrades

Customers with Service Contracts

Customers with contracts should obtain upgraded software through their regular update channels. For most customers, this means that upgrades should be obtained through the Software Center on Cisco's worldwide website at http://www.cisco.com.

Customers using Third Party Support Organizations

Customers whose Cisco products are provided or maintained through prior or existing agreements with third-party support organizations, such as Cisco Partners, authorized resellers, or service providers should contact that support organization for guidance and assistance with the appropriate course of action in regards to this advisory.

The effectiveness of any workaround or fix is dependent on specific customer situations, such as product mix, network topology, traffic behavior, and organizational mission. Due to the variety of affected products and releases, customers should consult with their service provider or support organization to ensure any applied workaround or fix is the most appropriate for use in the intended network before it is deployed.

Customers without Service Contracts

Customers who purchase direct from Cisco but do not hold a Cisco service contract, and customers who purchase through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should acquire upgrades by contacting the Cisco Technical Assistance Center (TAC). TAC contacts are as follows.

  • +1 800 553 2447 (toll free from within North America)
  • +1 408 526 7209 (toll call from anywhere in the world)
  • e-mail: tac@cisco.com

Customers should have their product serial number available and be prepared to give the URL of this notice as evidence of entitlement to a free upgrade. Free upgrades for non-contract customers must be requested through the TAC.

Refer to http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html for additional TAC contact information, including localized telephone numbers, and instructions and e-mail addresses for use in various languages.

Exploitation and Public Announcements

The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities described in this advisory.

These vulnerabilities were reported to Cisco by ZDI and discovered by AbdulAziz Hariri.

Status of this Notice: Final

THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.

A stand-alone copy or Paraphrase of the text of this document that omits the distribution URL in the following section is an uncontrolled copy, and may lack important information or contain factual errors.


Distribution

This advisory is posted on Cisco's worldwide website at:

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20110914-cusm

In addition to worldwide web posting, a text version of this notice is clear-signed with the Cisco PSIRT PGP key and is posted to the following e-mail and Usenet news recipients.

  • cust-security-announce@cisco.com
  • first-teams@first.org
  • bugtraq@securityfocus.com
  • vulnwatch@vulnwatch.org
  • cisco@spot.colorado.edu
  • cisco-nsp@puck.nether.net
  • full-disclosure@lists.grok.org.uk
  • comp.dcom.sys.cisco@newsgate.cisco.com

Future updates of this advisory, if any, will be placed on Cisco's worldwide website, but may or may not be actively announced on mailing lists or newsgroups. Users concerned about this problem are encouraged to check the above URL for any updates.


Revision History

Revision 1.1

2011-September-22

Updated workaround information

Revision 1.0

2011-September-14

Initial public release

Cisco Security Procedures

Complete information on reporting security vulnerabilities in Cisco products, obtaining assistance with security incidents, and registering to receive security information from Cisco, is available on Cisco's worldwide website at http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html. This includes instructions for press inquiries regarding Cisco security notices. All Cisco security advisories are available at http://www.cisco.com/go/psirt.