A vulnerability has been reported in Nortel CS1000, which potentially can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to an unspecified error within the processing of packets received through certain ELAN (Embedded LAN) ports, e.g 7734/TCP, 15000/TCP, 15080/TCP, and 15000/UDP. This can potentially be exploited to disable the affected server by flooding specific ELAN ports.
The vulnerability is reported in the following products:
* Enterprise VoIP-Core-CS 1000M Chassis/Cabinet
* Enterprise VoIP-Core-CS 1000E and 1000S
* Meridian-Core-Option 11C - Chassis/Cabinet
* Meridian-Core-Option 51C, 61C, and 81C
Solution: The vendor recommends that customers restrict direct access to the ELAN from unknown devices.
Provided and/or discovered by: Daniel Stirnimann and Cyrill Brunschwiler, Compass Security Network Computing AG.
Original Advisory: Nortel:
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Subject: Nortel CS1000 Denial of Service Vulnerability
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