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Cisco IP Phone 7940/7960 SIP INVITE Denial of Service Vulnerability
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Secunia Advisory:
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SA24600
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Release Date:
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2007-03-20
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Last Update:
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2007-03-26
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Popularity:
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9,531 views
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Critical:
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Moderately critical
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Impact:
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DoS
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| OS: | Cisco IP Phone 7900 Series
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| Software: | Cisco IP Phone 7940
Cisco IP Phones 7960
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| CVE reference: | CVE-2007-1542
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Description:
A vulnerability has been reported in Cisco IP Phone 7940 and 7960, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to an error within the handling of certain SIP INVITE messages. This can be exploited to reboot the device by sending a specially crafted INVITE message with a malformed "sipURI" field of the Remote-Party-ID.
The vulnerability is reported in devices running firmware POS3-07-4-00.
Solution:
Update to firmware version 8.6(0) (POS8-6-0).
http://www.cisco.com/cgi-bin/tablebuild.pl/ip-7900ser
Provided and/or discovered by:
Humberto J. Abdelnur, Radu State, and Olivier Festor
Changelog:
2007-03-21: Added link to Cisco.
2007-03-26: Added CVE reference.
Original Advisory:
Cisco:
http://www.cisco.com/en/US/products/p...ecurity_response09186a00808075ad.html
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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