Summary

• A vulnerability in the SOAP API endpoint of Cisco Unified Communications Manager, Cisco Unified Communications Manager Session Management Edition, Cisco Unified Communications Manager IM & Presence Service, Cisco Unity Connection, and Cisco Prime License Manager could allow an authenticated, remote attacker to execute arbitrary code on an affected device.

  This vulnerability is due to improper sanitization of user-supplied input. An attacker could exploit this vulnerability by sending a SOAP API request with crafted parameters to an affected device. A successful exploit could allow the attacker to execute arbitrary code with root privileges on the underlying Linux operating system of the affected device.

  Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

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

Affected Products

• Vulnerable Products

  This vulnerability affects the following Cisco products if they are running a vulnerable software release:

  • Unified Communications Manager (Unified CM)
  • Unified Communications Manager Session Management Edition (Unified CM SME)
  • Unified Communications Manager IM & Presence Service (Unified CM IM&P)
  • Unity Connection
  • Prime License Manager

  For information about which Cisco software releases are vulnerable, see the Fixed Software section of this advisory.

  Products Confirmed Not Vulnerable

  Only products listed in the Vulnerable Products section of this advisory are known to be affected by this vulnerability.

  Cisco has confirmed that this vulnerability does not affect Cisco Emergency Responder.

Workarounds

• There are no workarounds that address this vulnerability.

Fixed Software

• Cisco has released free software updates that address the vulnerability described in this advisory. Customers may only install and expect support for software versions and feature sets for which they have purchased a license. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license:
  https://www.cisco.com/c/en/us/products/end-user-license-agreement.html

  Additionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades.

  When considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page, 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.

  Customers Without Service Contracts

  Customers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco TAC: https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html

  Customers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade.

  Fixed Releases

  In the following tables, the left column lists Cisco software releases. The right column indicates whether a release is affected by the vulnerability described in this advisory and the first release that includes the fix for this vulnerability. Customers are advised to upgrade to an appropriate fixed software release as indicated in this section.

  Unified CM and Unified CM SME: CSCvu56491

  Cisco Unified CM and Unified CM SME Releases	First Fixed Release for This Vulnerability
  10.5(2)	None planned
  11.0(1)	Migrate to 11.5(1)SU9
  11.5(1)	11.5(1)SU9
  12.0(1)	Migrate to 12.5(1)SU4
  12.5(1)	12.5(1)SU4

  Unified CM IM&P: CSCvv41616

  Cisco Unified CM IM&P Releases	First Fixed Release for This Vulnerability
  10.5(2)	None planned
  11.0(1)	Migrate to 11.5(1)SU9
  11.5(1)	11.5(1)SU9
  12.0(1)	Migrate to 12.5(1)SU4
  12.5(1)	12.5(1)SU4

  Unity Connection: CSCvv35203

  Cisco Unity Connection Releases	First Fixed Release for This Vulnerability
  10.5(2)	None planned
  11.0(1)	Migrate to 11.5(1)SU9
  11.5(1)	11.5(1)SU9
  12.0(1)	Migrate to 12.5(1)SU4
  12.5(1)	12.5(1)SU4

  Prime License Manager: CSCvv59434

  Cisco Prime License Manager Releases	First Fixed Release for This Vulnerability
  10.5(2)	None planned
  11.0(1)	Migrate to 11.5(1)SU9
  11.5(1)	11.5(1)SU9

Exploitation and Public Announcements

• The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.

Source

• Cisco would like to thank Christopher Schneider of State Farm Information Security for reporting this vulnerability.

URL

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

Revision History

• Version	Description	Section	Status	Date
  1.0	Initial public release.	—	Final	2021-APR-07

  Show Less

---