CVE-2019-1845

published 2019-06-05

CVE-2019-1845: A vulnerability in the authentication service of the Cisco Unified Communications Manager IM and Presence (Unified CM IM&P) Service, Cisco TelePresence Video…

high 8.6 CVSS 3.0

AV N AC L PR N UI N S C C N I N A H

A vulnerability in the authentication service of the Cisco Unified Communications Manager IM and Presence (Unified CM IM&P) Service, Cisco TelePresence Video Communication Server (VCS), and Cisco Expressway Series could allow an unauthenticated, remote attacker to cause a service outage for users attempting to authenticate, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient controls for specific memory operations. An attacker could exploit this vulnerability by sending a malformed Extensible Messaging and Presence Protocol (XMPP) authentication request to an affected system. A successful exploit could allow the attacker to cause an unexpected restart of the authentication service, preventing users from successfully authenticating. Exploitation of this vulnerability does not impact users who were authenticated prior to an attack.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
cisco	cisco_telepresence_video_communication_server	>= unspecified < 12.5(1)	12.5(1)
cisco	telepresence_video_communication_server	x8.1 – x12.5.2	—
cisco	unified_communications_manager_im_ampp_service_cisco_telepresence_vcs_and_cisco	—	—
cisco	unified_communications_manager_im_and_presence_service	—	—

CWE-20