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National Cyber Awareness System

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 serviceUnknown

References to Advisories, Solutions, and Tools

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External Source: SECUNIA
Name: 26547
Type: Advisory; Patch Information
Hyperlink:http://secunia.com/advisories/26547
External Source: XF
Name: cisco-ipphone-sip-dos(36125)
Hyperlink:http://xforce.iss.net/xforce/xfdb/36125
External Source: VUPEN
Name: ADV-2007-2928
Type: Advisory
Hyperlink:http://www.vupen.com/english/advisories/2007/2928
External Source: BID
Name: 25378
Hyperlink:http://www.securityfocus.com/bid/25378
External Source: OSVDB
Name: 36695
Hyperlink:http://www.osvdb.org/36695
External Source: CISCO
Name: 20070821 Multiple SIP Vulnerabilities in the Cisco 7960 IP Phones
Hyperlink:http://www.cisco.com/warp/public/707/cisco-sr-20070821-sip.shtml
External Source: SECTRACK
Name: 1018591
Hyperlink:http://securitytracker.com/id?1018591
External Source: SREASON
Name: 3042
Hyperlink:http://securityreason.com/securityalert/3042
External Source: FULLDISC
Name: 20070820 3 messsages attack remote DOS on Cisco 7940
Hyperlink:http://lists.grok.org.uk/pipermail/full-disclosure/2007-August/065402.html
External Source: FULLDISC
Name: 20070820 10 messages SIP Remote DOS on Cisco 7940 SIP Phone
Hyperlink:http://lists.grok.org.uk/pipermail/full-disclosure/2007-August/065401.html

Vulnerable software and versions

Nav control imageConfiguration 1
spacerNav control imageOR
spacerspacerNav control image* cpe:/h:cisco:voip_phone_cp-7940:3.0:p0s3-08-6-00_firmware
spacerspacerNav control image* cpe:/h:cisco:voip_phone_cp-7940:3.1:p0s3-08-6-00_firmware
spacerspacerNav control image* cpe:/h:cisco:voip_phone_cp-7940:3.2:p0s3-08-6-00_firmware
spacerspacerNav control image* cpe:/h:cisco:voip_phone_cp-7940:8.6:p0s3-08-6-00_firmware
spacerspacerNav control image* cpe:/h:cisco:voip_phone_cp-7940:8.70:p0s3-08-6-00_firmware and previous versions
spacerspacerNav control image* cpe:/h:cisco:voip_phone_cp-7960:8.70:p0s3-08-6-00_firmware and previous versions
* Denotes Vulnerable Software
* Changes related to vulnerability configurations

Technical Details

Vulnerability Type (View All)
CVE Standard Vulnerability Entry:http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4459