CVE Catalog

CVE-2006-0368

High
Published: Translated: NVD NIST

Summary

A vulnerability in Cisco CallManager allows remote attackers to cause a denial of service via a large number of TCP connections to port 2000 (CPU/memory exhaustion) or ports 2001, 2002, 7727 (filling the Windows Service Manager communication queue).

Risk Assessment

The attack can render the VoIP phone system unavailable, disrupting organizational communication and causing operational losses.

Recommendation

Upgrade Cisco CallManager to versions 3.3(5)SR1, 4.0(2a)SR2c, or 4.1(3)SR2, and restrict access to ports 2000-2002 and 7727 via firewall.

Related vulnerabilities

Original NVD description (English source)

Cisco CallManager 3.2 and earlier, 3.3 before 3.3(5)SR1, 4.0 before 4.0(2a)SR2c, and 4.1 before 4.1(3)SR2 allow remote attackers to (1) cause a denial of service (CPU and memory consumption) via a large number of open TCP connections to port 2000 and (2) cause a denial of service (fill the Windows Service Manager communication queue) via a large number of TCP connections to port 2001, 2002, or 7727.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS