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Vulnerability Details : CVE-2007-5640

The Nortel UNIStim IP Softphone 2050, IP Phone 1140E, and additional Nortel products from the IP Phone, Business Communications Manager (BCM), Mobile Voice Client, and other product lines, allow remote attackers to block calls and force re-registration via a resume message to the Signaling Server that has a spoofed source IP address for the phone. NOTE: the attack is more disruptive if a new spoofed resume message is sent after each re-registration.
Publish Date : 2007-10-23 Last Update Date : 2008-11-15
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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)
CWE ID CWE id is not defined for this vulnerability

- Products Affected By CVE-2007-5640

# Product Type Vendor Product Version Update Edition Language
1 Application Nortel Business Communications Manager 50 Version Details Vulnerabilities
2 Application Nortel Business Communications Manager 200 Version Details Vulnerabilities
3 Application Nortel Business Communications Manager 400 Version Details Vulnerabilities
4 Application Nortel Business Communications Manager 50A Version Details Vulnerabilities
5 Application Nortel Business Communications Manager 50E Version Details Vulnerabilities
6 Application Nortel Business Communications Manager 1000 Version Details Vulnerabilities
7 Application Nortel Business Communications Manager Srg200 Version Details Vulnerabilities
8 Application Nortel Business Communications Manager Srg50 Version Details Vulnerabilities
9 Application Nortel Centrex Ip Client Manager Version Details Vulnerabilities
10 Application Nortel Centrex Ip Element Manager Version Details Vulnerabilities
11 Application Nortel Meridian Option 11c Version Details Vulnerabilities
12 Application Nortel Meridian Option 51c Version Details Vulnerabilities
13 Application Nortel Meridian Option 61c Version Details Vulnerabilities
14 Application Nortel Meridian Option 81c Version Details Vulnerabilities
15 Application Nortel Meridian Sl100 Cs2100 Version Details Vulnerabilities
16 Application Nortel Mobile Voice Client 2050 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Nortel Business Communications Manager 8
Nortel Centrex Ip Client Manager 1
Nortel Centrex Ip Element Manager 1
Nortel Meridian Option 11c 1
Nortel Meridian Option 51c 1
Nortel Meridian Option 61c 1
Nortel Meridian Option 81c 1
Nortel Meridian Sl100 1
Nortel Mobile Voice Client 2050 1

- References For CVE-2007-5640

http://secunia.com/advisories/27234
SECUNIA 27234
http://www.csnc.ch/static/advisory/csnc/nortel_IP_phone_forced_re-authentication_v1.0.txt
http://www.securityfocus.com/archive/1/archive/1/482481/100/0/threaded
BUGTRAQ 20071018 Nortel IP Phone forced re-authentication
http://xforce.iss.net/xforce/xfdb/37254
XF nortel-ipphone-register-dos(37254)
http://www.securityfocus.com/bid/26124
BID 26124 Nortel UNIStim IP Phone Remote Denial of Service Vulnerability Release Date:2007-10-23
http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=654641 CONFIRM
http://osvdb.org/41772
OSVDB 41772
http://securityreason.com/securityalert/3274
SREASON 3274

- Vulnerability Conditions

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

- Metasploit Modules Related To CVE-2007-5640

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


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