Secunia Security Advisory - The Madynes research team at INRIA Lorraine has reported some vulnerabilities in Cisco IP Phone 7940, which can be exploited by malicious people to cause a DoS (Denial of Service).
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TITLE:
Cisco IP Phone 7940 SIP Message Sequence Denial of Service
SECUNIA ADVISORY ID:
SA26547
VERIFY ADVISORY:
http://secunia.com/advisories/26547/
CRITICAL:
Less critical
IMPACT:
DoS
WHERE:
>From remote
SOFTWARE:
Cisco IP Phone 7940
http://secunia.com/product/1113/
DESCRIPTION:
The Madynes research team at INRIA Lorraine has reported some
vulnerabilities in Cisco IP Phone 7940, which can be exploited by
malicious people to cause a DoS (Denial of Service).
The vulnerabilities are caused due to errors within the handling of
certain SIP message sequences. These can be exploited to reboot the
device by sending a series of specially crafted SIP messages.
The vulnerabilities are reported in firmware version POS3-08-6-00.
SOLUTION:
Use only in a trusted network environment.
PROVIDED AND/OR DISCOVERED BY:
Madynes research team at INRIA Lorraine
ORIGINAL ADVISORY:
http://lists.grok.org.uk/pipermail/full-disclosure/2007-August/065401.html
http://lists.grok.org.uk/pipermail/full-disclosure/2007-August/065402.html
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