CVE-2007-5638 Information

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.

Reference

http://osvdb.org/41770 http://secunia.com/advisories/27234 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