CVE-2002-0673
The enrollment process for Pingtel xpressa SIP-based voice-over-IP phone 1.2.5 through 1.2.7.4 allows attackers with physical access to the phone to log out the current user and re-register the phone using MyPingtel Sign-In to gain remote access and perform unauthorized actions.
Date published : 2004-09-01
http://www.atstake.com/research/advisories/2002/a071202-1.txt