Cisco Unified Communications Manager SIP Message Denial of Service Vulnerability

Bugtraq ID:	36496
Class:	Design Error
CVE:	CVE-2009-2864
Remote:	Yes
Local:	No
Published:	Sep 23 2009 12:00AM
Updated:	Sep 23 2009 06:20PM
Credit:	Cisco
Vulnerable:	Cisco Unified Communications Manager 7.0(2) Cisco Unified Communications Manager 7.0 Cisco Unified Communications Manager 6.1(3) Cisco Unified Communications Manager 6.1(1) Cisco Unified Communications Manager 5.1(3e) Cisco Unified Communications Manager 5.1(3e) Cisco Unified Communications Manager 5.0
Not Vulnerable:	Cisco Unified Communications Manager 7.1 Cisco Unified Communications Manager 7.0(2a)su1 Cisco Unified Communications Manager 6.1(4) Cisco Unified Communications Manager 5.1(3g)

Cisco Unified Communications Manager SIP Message Denial of Service Vulnerability

Cisco Unified Communications Manager is prone to a denial-of-service vulnerability.

An attacker can exploit this issue to cause an interruption in voice services, denying service to legitimate users.

This issue is tracked by Cisco Bug ID CSCsz95423.

Cisco Unified Communications Manager SIP Message Denial of Service Vulnerability

To exploit this issue, attackers can use readily available network utilities.

Cisco Unified Communications Manager SIP Message Denial of Service Vulnerability

Solution:
The vendor has released updates. Please see the referenced advisory for details.

Cisco Unified Communications Manager SIP Message Denial of Service Vulnerability

References:

• Cisco Security Advisory: Cisco Unified Communications Manager Session Initiation (Cisco)
  
• Cisco Unified Communication Manager Homepage (Cisco)