NET$SESSION_CONTROL.EXE in DECnet-Plus in OpenVMS ALPHA 7.3-2 and Alpha 8.2 writes a password to an audit log file when there is a successful connection after a "network breakin" event, which allows local users to obtain passwords by reading the file.
https://exchange.xforce.ibmcloud.com/vulnerabilities/28695
http://www.vupen.com/english/advisories/2006/3423
http://www.securityfocus.com/bid/19783
http://securitytracker.com/id?1017472
http://securitytracker.com/id?1016772