Summary

• 
  

  Cisco Unified Communications Manager devices may allow a remote, unauthenticated attacker with the ability to send crafted Skinny Client Control Protocol (SCCP) messages to an affected device to cause a reload or execute attacker-controlled SQL code. 

  Cisco has released software updates that address these vulnerabilities.

  Workarounds that mitigate these vulnerabilities are available.
  

  
  

  This advisory is available at the following link:
  https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120229-cucm

Affected Products

• Vulnerable Products

  The following products are affected by the vulnerabilities that are described in this advisory:

  • Cisco Unified Communications Manager Software versions 6.x 
  • Cisco Unified Communications Manager Software versions 7.x 
  • Cisco Unified Communications Manager Software versions 8.x
  • Cisco Business Edition 3000
  • Cisco Business Edition 5000
  • Cisco Business Edition 6000

  Note: Cisco Unified Communications Manager version 6.1 reached the End of Software Maintenance on September 3, 2011. Customers using Cisco Unified Communications Manager Software versions 6.x, should contact their Cisco support team for assistance in upgrading to a supported version of Cisco Unified Communications Manager.

  Products Confirmed Not Vulnerable

  No other Cisco products are currently known to be affected by these vulnerabilities.

Details

• Cisco Unified Communications Manager is the call processing component of the Cisco IP Telephony solution that extends enterprise telephony features and functions to packet telephony network devices, such as IP phones, media processing devices, VoIP gateways, and multimedia applications.

  
  

  Cisco Unified Communications Manager contains two vulnerabilities that involve the processing of SCCP packets. These issues may allow a remote, unauthenticated attacker with the ability to send crafted SCCP messages to an affected device to cause a reload or execute attacker-controlled SQL code.  Both SCCP ports (TCP ports 2000 and 2443) are affected.

  
  

  Cisco Unified Communications Manager SCCP Registration may Cause Reload  

  Cisco Unified Communication Manager may reload when a specially crafted SCCP message is processed. Successful exploitation could cause a loss of all voice services that are being handled by the affected device.  After the device restarts, voice services will be restored. This vulnerability is documented in Cisco bug ID CSCtu73538 (registered customers only) and has been assigned Common Vulnerabilities and Exposures (CVE) ID CVE-2011-4486.

  
  

  Cisco Unified Communications Manager Vulnerable to Blind SQL Injection During Registration  

  Cisco Unified Communications Manager may allow the blind execution of attacker-controlled SQL code when processing a specially crafted SCCP message.  Successful exploitation could allow the attacker to modify certain sections of the SQL database that are utilized by the device.  This vulnerability is also documented in Cisco bug ID CSCtu73538 (registered customers only) and has been assigned CVE ID CVE-2011-4487.

Workarounds

• Administrators can mitigate these vulnerabilities limiting access to TCP ports 2000 and 2443 to only allow traffic from networks that require SCCP access to Cisco Unified Communications Manager appliances.

  Additional mitigation techniques that can be deployed on Cisco devices within the network are available in the Cisco Applied Mitigation Bulletin companion document for this advisory:

  https://sec.cloudapps.cisco.com/security/center/content/CiscoAppliedMitigationBulletin/cisco-amb-20120229-cucm

   

Fixed Software

• When considering software upgrades, customers are advised to consult the Cisco Security Advisories and Responses archive at http://www.cisco.com/go/psirt and review subsequent advisories to determine exposure and a complete upgrade solution.

  In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.

   

  Cisco Unified Communication Manager Version	First Fixed Release
  6.x	Vulnerable; migrate to 7.1(5b)su5 or later
  7.x	7.1(5b)su5; available April 6, 2012
  8.0	8.0(3a)su3
  8.5	Vulnerable; migrate to 8.6(2a)su1
  8.6	8.6(2a)su1; available in March 2012
  Cisco Business Edition 3000 Software	8.6.3
  Cisco Business Edition 5000 Software	8.6(2a)su1; available in March 2012
  Cisco Business Edition 6000 Software	8.6(2a)su1; available in March 2012

  Cisco Unified Communications Manager Software can be downloaded at the following link: https://sec.cloudapps.cisco.com/support/downloads/go/Redirect.x?mdfid=268439621

  Cisco Business Edition Software can be downloaded at the following link: http://www.cisco.com/cisco/software/navigator.html?mdfid=283661240&i=rm

Exploitation and Public Announcements

• These vulnerabilities were publicly disclosed on Bugtraq on November 8, 2011.  The Cisco Product Security Incident Response Team (PSIRT) is not aware of any malicious use of the vulnerabilities described in this advisory.

  These vulnerabilities were reported to Cisco by Felix Lindner of Recurity Labs GmbH and discovered by Sandro Gauci.

URL

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120229-cucm

Revision History

• Revision 1.1	2012-April-02	Updated software release date.
  Revision 1.0	2012-February-29	Initial public release.

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