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Article: Cisco VoIP and presence servers vulnerable to new attacks; Unified CallManagers and Unified Presence Servers could be crashed via remote attacks, company says.(Cisco Systems Inc)
- Article from:
- Network World
- Article date:
- March 29, 2007
- Author:
CopyrightCOPYRIGHT 2007 Network World, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Byline: Phil Hochmuth
Cisco this week said its corporate VoIP and presence servers could be attacked remotely and flooded with specific types
of traffic intended to crash these systems.
The Cisco Unified CallManager (CUCM) and Cisco Unified Presence Server (CUPS) are vulnerable to remote attacks by specially
crafted TCP, Internet Control Messaging Protocol (ICMP)aor User Datagram Protocol (UDP)apackets. Cisco has released software
patches for these problems.
CallManager servers, which process VoIP calls on a network, can be crashed by sending attack traffic to TCP ports 2000 or