Rule: -- Sid: 1814 -- Summary: This event is generated when an attempt is made to exploit a flaw on a Cisco VoIP telephone. -- Impact: Denial of Service. -- Detailed Information: Certain versions of Cisco's VoIP phones are vulnerable to an attack that can cause them to reboot when they recieve an http request such as http://ciscophoneip/StreamingStatistics?<value> where <value> is an integer value of arbitrary high value, typically a number greater than 32768. -- Affected Systems: Cisco VoIP Phones 7910, 7940, and 7960 (software version 3.0 to 3.2) -- Attack Scenarios: A remote user can send the exploit url to the phone, causing the phone to reboot and disallowingthe user to place or recieve calls for up to 30 seconds. -- Ease of Attack: Simple. -- False Positives: None known. -- False Negatives: None known. -- Corrective Action: Apply the appropriate vendor supplied patches. -- Contributors: Sourcefire Research Team Brian Caswell <bmc@sourcefire.com> Nigel Houghton <nigel.houghton@sourcefire.com> Snort documentation contributed by Josh Sakofsky -- Additional References: Bugtraq: http://www.securityfocus.com/bid/4794 --
