The "forgot password" function in OneOrZero Helpdesk before 1.6.5.4 generates insecure passwords by concatenating the current timestamp with the username, which allows remote attackers to gain access as an arbitrary user by requesting a password reset.
http://www.securityfocus.com/bid/20651
http://www.securityfocus.com/archive/1/449352/100/0/threaded
http://securityreason.com/securityalert/1767
http://secunia.com/advisories/22476
http://oneorzero.com/downloads/release_notes/Current_Release_notes.html