Vulnerability CVE-2007-5638


Published: 2007-10-23   Modified: 2012-02-12

Description:
The Nortel UNIStim IP Softphone 2050, IP Phone 1140E, and additional Nortel products from the IP Phone, Business Communications Manager (BCM), and other product lines, use only 65536 different values in the 32-bit ID number field of an RUDP datagram, which makes it easier for remote attackers to guess the RUDP ID and spoof messages. NOTE: this can be leveraged for an eavesdropping attack by sending many Open Audio Stream messages.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Nortel IP Phone Surveillance Mode
Daniel Stirniman...
23.10.2007

Type:

CWE-310

(Cryptographic Issues)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Nortel -> Business communications manager 
Nortel -> Centrex ip client manager 
Nortel -> Centrex ip element manager 
Nortel -> Meridian option 11c 
Nortel -> Meridian option 51c 
Nortel -> Meridian option 61c 
Nortel -> Meridian option 81c 
Nortel -> Meridian sl100 
Nortel -> Mobile voice client 2050 

 References:
http://securityreason.com/securityalert/3272
http://www.csnc.ch/static/advisory/csnc/nortel_IP_phone_surveillance_mode_v1.0.txt
http://www.securityfocus.com/archive/1/482478/100/0/threaded
http://www.securityfocus.com/bid/26120
https://exchange.xforce.ibmcloud.com/vulnerabilities/37255
https://exchange.xforce.ibmcloud.com/vulnerabilities/42881

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