Cisco Unified Communications Manager and Cisco Unified Communications Manager Session Management Edition (SME) Improper Restriction of XML External Entity Reference Vulnerability

Summary

A vulnerability in the web-based interface of Cisco Unified Communications Manager and Cisco Unified Communications Manager Session Management Edition (SME) could allow an unauthenticated, remote attacker to access sensitive information or cause a denial of service (DoS) condition.

Credit:

The information has been provided by Vendor.

The original article can be found at: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-cucm-xxe


Details

The vulnerability is due to improper restrictions on XML entities. An attacker could exploit this vulnerability by sending malicious requests to an affected system that contain references in XML entities. A successful exploit could allow the attacker to retrieve files from the local system, resulting in the disclosure of sensitive information, or cause the application to consume available resources, resulting in a DoS condition.

Vulnerable Systems:

Cisco Unified Communications Manager and Cisco Unified Communications Manager SME 10.5(2) and earlier

Cisco Unified Communications Manager and Cisco Unified Communications Manager SME 11.5(1)SU5 and earlier

Cisco Unified Communications Manager and Cisco Unified Communications Manager SME 12.0(1)SU2 and earlier

Cisco Unified Communications Manager and Cisco Unified Communications Manager SME 12.5(1) and earlier

CVE Information:

CVE-2019-12711

Disclosure Timeline:

Published Date:10/02/2019