Cisco IP Phone 7940/7960 SIP Message Sequence Denial of Service - Secunia Advisories - Vulnerability Intelligence

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Cisco IP Phone 7940/7960 SIP Message Sequence Denial of Service
Secunia Advisory:	SA26547	Advisory Toolbox: Issue ticket Save in to-do list Mark as handled Exploit information Download as PDF Review actions Add comment
Release Date:	2007-08-21
Last Update:	2007-08-22
Popularity:	12,797 views

Critical:	Less critical
Impact:	DoS
Where:	From remote
Solution Status:	Vendor Patch

Software:	Cisco IP Phone 7940 Cisco IP Phones 7960

Subscribe:	Instant alerts on relevant vulnerabilities

Description: The Madynes research team at INRIA Lorraine has reported some vulnerabilities in Cisco IP Phone 7940 and 7960, 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: Update to firmware version 8.7(0). http://www.cisco.com/pcgi-bin/tablebuild.pl/sip-ip-phone7960?psrtdcat20e2 Provided and/or discovered by: Madynes research team at INRIA Lorraine Changelog: 2007-08-22: Updated "Solution" section. Added vendor link. Added the Cisco IP Phone 7960 as affected product. 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 Cisco: http://www.cisco.com/en/US/products/p...ecurity_response09186a00808a6693.html

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