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Vulnerability Details : CVE-2007-5639

The Nortel UNIStim IP Softphone 2050, IP Phone 1140E, and other Nortel IP Phone, Mobile Voice Client, and WLAN Handsets products allow remote attackers to cause a denial of service (device hang) via a flood of Mute and UnMute messages that have a spoofed source IP address for the Signaling Server.
Publish Date : 2007-10-23 Last Update Date : 2008-09-05
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- CVSS Scores & Vulnerability Types

CVSS Score
7.1
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID CWE id is not defined for this vulnerability

- Products Affected By CVE-2007-5639

# Product Type Vendor Product Version Update Edition Language
1 Application Nortel Ip Softphone 2050 Version Details Vulnerabilities
2 Application Nortel Mobile Voice Client 2050 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Nortel Ip Softphone 2050 1
Nortel Mobile Voice Client 2050 1

- References For CVE-2007-5639

http://www.csnc.ch/static/advisory/csnc/nortel_IP_phone_flooding_denial_of_service_v1.0.txt
http://www.securityfocus.com/archive/1/archive/1/482480/100/0/threaded
BUGTRAQ 20071018 Nortel IP Phone Flooding Denial of Service
http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=654715 CONFIRM
http://xforce.iss.net/xforce/xfdb/37253
XF nortel-ipphone-spoof-dos(37253)
http://www.securityfocus.com/bid/26122
BID 26122 Nortel IP Phones UNIStim Messages Denial of Service Vulnerability Release Date:2007-10-24
http://securityreason.com/securityalert/3273
SREASON 3273

- Vulnerability Conditions

Vulnerability is valid if product versions listed below are used TOGETHER WITH(AND)

- Metasploit Modules Related To CVE-2007-5639

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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