2.5.915 included BFER 5193 "For the HP-UX platform, locked accounts will be unlocked during a password change". When the functional account does not have permissions to /usr/lbin/modprpw the password reset works, but TPAM believes it has failed..
対策
WORKAROUND 1
Add rights to the functional account to run modprpw.
For example, add the below to the sudoers file funcacct ALL=(root) NOPASSWD: /usr/lbin/modprpw
WORKAROUND 2
Install Hotfix_8168
Hotfix_8168.zip
v2.5.904-2.5.915
Update HP Trusted Platform to not fail password change when unlock fails.
Key:Xpce8w1ock
Option/genkey
STATUS
Issue fixed in version 2.5.916. The latest version of TPAM can be downloaded here
変更要求
BFER 8168
追加情報
Unlock Locked Accounts
For the HP-UX (trsuted) platform, locked accounts will be unlocked by TPAM when making a password change. To unlock an HP-UX account (during a password reset) TPAM has the functional account issue the command /usr/lbin/modprpw. If using delegation prefix the functional account must have permissions to execute the command, otherwise the password reset will fail.