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Netsikker nu! 2008
 
Cisco Unified CallManager SCCP and SCCPS Denial of Service
Secunia Advisory: SA24665
Release Date: 2007-03-29
Last Update: 2007-04-03
Popularity: 7,584 views

Critical:
Less critical
Impact: DoS
Where: From local network
Solution Status: Vendor Patch

Software:Cisco Unified CallManager 3.x
Cisco Unified CallManager 4.x
Cisco Unified CallManager 5.x
Cisco Unified Communications Manager 4.x
Cisco Unified Communications Manager 5.x

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CVE reference:CVE-2007-1833


Description:
A vulnerability has been reported in Cisco Unified CallManager (CUCM), which can be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an unspecified error within the handling of certain packets. This can be exploited to crash the CallManager Service by sending a series of specially crafted packets to the SCCP service (port 2000/TCP) or SCCPS service (port 2443/TCP).

The vulnerability is reported in CUCM versions prior to 3.3(5)SR2a, 4.1(3)SR4, 4.2(3)SR1, and 5.0(4a)SU1.

Solution:
Apply updated software.

CUCM 3.3:
Update to CUCM 3.3(5)SR2a.
http://www.cisco.com/pcgi-bin/tablebuild.pl/callmgr-33?psrtdcat20e2

CUCM 4.1:
Update to CUCM 4.1(3)SR4.
http://www.cisco.com/pcgi-bin/tablebuild.pl/callmgr-41?psrtdcat20e2

CUCM 4.2:
Update to CUCM 4.2(3)SR1.
http://www.cisco.com/pcgi-bin/tablebuild.pl/callmgr-42?psrtdcat20e2

CUCM 5.0:
Update to CUCM 5.0(4a)SU1.
http://www.cisco.com/pcgi-bin/tablebuild.pl/callmgr-50?psrtdcat20e2

Provided and/or discovered by:
Reported by the vendor.

Changelog:
2007-04-03: Added CVE reference.

Original Advisory:
http://www.cisco.com/warp/public/707/cisco-sa-20070328-voip.shtml

Other References:
http://www.cisco.com/en/US/products/p...ligence_response09186a008080f193.html


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