CUCM 8.5(x) / 8.6(x) < 8.6(2a)su3 / 9.x < 9.1(1) SIP Denial of Service (CSCub85597)

This script is Copyright (C) 2013 Tenable Network Security, Inc.


Synopsis :

The remote host is affected by a denial of service vulnerability.

Description :

According to its version number, the version of Cisco Unified
Communications Manager installed on the remote host insufficiently
rate-limits traffic on the session initiation protocol (SIP) port
allowing an attacker to cause a denial of service condition by sending
UDP packets at high rates to that port.

See also :

http://www.nessus.org/u?ccddc990

Solution :

For Cisco Unified Communications Manager (CUCM) 8.6(x), upgrade to
8.6(2a)su3 or later. For 9.x, upgrade to 9.1(2) or later. For 8.5(x) a
fix was not specified in the bulletin. Alternatively, filter traffic to
the affected ports.

Risk factor :

High / CVSS Base Score : 7.1
(CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 5.9
(CVSS2#E:F/RL:OF/RC:C)
Public Exploit Available : true

Family: CISCO

Nessus Plugin ID: 70089 ()

Bugtraq ID: 61908

CVE ID: CVE-2013-3461