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Last updated: 7/23/2014 12:10:58 AM

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Vulnerability Summary for CVE-2007-4459

Original release date: 08/21/2007
Last revised: 07/13/2011
Source: US-CERT/NIST

Overview

Cisco IP Phone 7940 and 7960 with P0S3-08-6-00 firmware, and other SIP firmware before 8.7(0), allows remote attackers to cause a denial of service (device reboot) via (1) a certain sequence of 10 invalid SIP INVITE and OPTIONS messages; or (2) a certain invalid SIP INVITE message that contains a remote tag, followed by a certain set of two related SIP OPTIONS messages.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 7.1 (HIGH) (AV:N/AC:M/Au:N/C:N/I:N/A:C) (legend)
Impact Subscore: 6.9
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: VUPEN
Name: ADV-2007-2928
Type: Advisory
External Source: FULLDISC
Name: 20070820 10 messages SIP Remote DOS on Cisco 7940 SIP Phone
External Source: CISCO
Name: 20070821 Multiple SIP Vulnerabilities in the Cisco 7960 IP Phones
External Source: BID
Name: 25378
External Source: FULLDISC
Name: 20070820 3 messsages attack remote DOS on Cisco 7940
External Source: SECTRACK
Name: 1018591
External Source: SREASON
Name: 3042
External Source: SECUNIA
Name: 26547
Type: Advisory; Patch Information
External Source: OSVDB
Name: 36695
External Source: XF
Name: cisco-ipphone-sip-dos(36125)

Technical Details

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