Well, I cannot agree. Serial number is know as well as the date. The
only secret part is the method, algorithm.
BTW, disclaimer: I wish I knew the PEMODE password, but I didn't look
for it. I was looking for Service Manuals.
Regards
--
Radoslaw Skorupka
Lodz, Poland
W dniu 2012-03-22 11:35, Costin Enache pisze:
The PEMODE password is calculated from the system serial number (CEC, 12 characters),
current date, and a mutate table which is specific to the SE software main release
version and MCL. The only "secret" part is the serial number ... I guess it was
never intended to be a very secret method, but rather to avoid people damaging things.
Costin
________________________________
From: Charles Durrett<[email protected]>
To: [email protected]
Sent: Wednesday, March 21, 2012 3:55 PM
Subject: Re: Secret Service Guide
On Saturday, March 17, 2012 10:11:20 AM UTC-5, R.S. wrote:
MP3000 Service Guide is SY24-6155 - easily found online. It even has
the default Support Element logon passwords - Woo-Hoo!
Thank you for the hint.
BTW: the passwords are well known and have "always" been documented.
Default passwords for HMC are:
SERVMODE for user SERVICE
PASSWORD for other documented users (*)
There is also undocumented user PEMODE, I would like to know his
password, but AFAIK it's time and s/n dependent.
PEMODE account is also present in a z890 Service Element - the signon panel
'leaks' enough information to tell if an account is setup on the machine.
The variable password with the account *might* be implemented per the 1994 IBM
US patent 5682475 - METHOD AND SYSTEM FOR VARIABLE PASSWORD ACCESS. If so then
the password search space is narrowed.
(*) I haven't checked two new (z196) Ensemble users
--
Radoslaw Skorupka
Lodz, Poland
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