22623 : Cisco CallManager Connection Saturation Window Message Queue Exhaustion DoS
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Timeline

Disclosure Date
2006-01-18

Description

Cisco CallManager contains a flaw that may allow a remote denial of service. The issue is triggered when a large number of connections to ports 2001, 2002, or 7727 are received (filling the Windows message queue), and will result in loss of availability for the service.

Classification

Location: Remote / Network Access
Attack Type: Denial of Service
Impact: Loss of Availability
Exploit: Exploit Unknown
OSVDB: Voice over IP

Solution

Upgrade to version 3.3(5)SR1a, 4.0(2a)SR2c, or 4.1(3)SR2 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Cisco Systems, Inc.	CallManager	3.2
		3.3
		4.0
		4.1
		3.3(5)SR1a
		4.1(3)SR2
		4.0(2a)SR2b

References

Security Tracker: 1015503
Bugtraq ID: 16295
Secunia Advisory ID: 18494
CVE ID: 2006-0368 (see also: NVD)
Related OSVDB ID: 22622
ISS X-Force ID: 24180
VUPEN Advisory: ADV-2006-0249
Keyword: cisco-sa-20060118-ccmdos,CSCsa86197,CSCsb16635,CSCsb64161
Mail List Post: http://archives.neohapsis.com/archives/fulldisclosure/2006-01/0647.html
Vendor Specific Advisory URL: http://www.cisco.com/warp/public/707/cisco-sa-20060118-ccmdos.shtml
News Article: http://www.networkworld.com/news/2006/011906-cisco-voip-flaw.html

Credit

Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 7.8
Source: nvd.nist.gov | Generated: 2006-01-23 | Disagree?

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