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Moderately critical

Cisco Unified CallManager and Presence Server ICMP Echo and IPSec Denial of Service

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Release Date:  2007-03-29    Last Update:  2007-04-03    Views:  13,358

Secunia Advisory SA24690

Where:

From remote

Impact:

DoS

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Some vulnerabilities have been reported in Cisco Unified CallManager (CUCM) and Cisco Unified Presence Server (CUPS), which can be exploited by malicious people to cause a DoS (Denial of Service).

1) An unspecified error exists within the handling of large amounts of ICMP Echo packets. This can be exploited to crash various CUCM or CUPS services by sending a lot of ICMP Echo packets.

2) An unspecified error exists within the IPSec Manager service for CUCM or CUPS. This can be exploited to e.g. stop certain services like call forwarding by sending a specially crafted UDP packet to port 8500.

The vulnerabilities are reported in CUCM 5.0 versions prior to 5.0(4a)SU1, and CUPS 1.0 versions prior to 1.0(3).


Solution:
Apply updated software.

Further details available to Secunia VIM customers

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

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

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Cisco Unified CallManager and Presence Server ICMP Echo and IPSec Denial of Service

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