I write that the S/N is secret, as it is the only thing specific to a certain installation. The method is present on all the SEs in the world, and the tables on all the SEs with the same MCL - this makes them not so secret. But the S/N is unique, known by IBM and the client - it may be not enough, but it is all we have. In a secure setup, it hardly matters, as is not intended to protect the system against external attacks, just against technical misuse by legitimate users. Of course, the HMCs are a different topic, but not for this thread. Costin
________________________________ From: R.S. <[email protected]> To: [email protected] Sent: Thursday, March 22, 2012 12:33 PM Subject: Re: Secret Service Guide 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 >> >> >> ... > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > -- Tre tej wiadomoci moe zawiera informacje prawnie chronione Banku przeznaczone wycznie do uytku subowego adresata. Odbiorc moe by jedynie jej adresat z wyczeniem dostpu osób trzecich. Jeeli nie jeste adresatem niniejszej wiadomoci lub pracownikiem upowanionym do jej przekazania adresatowi, informujemy, e jej rozpowszechnianie, kopiowanie, rozprowadzanie lub inne dziaanie o podobnym charakterze jest prawnie zabronione i moe by karalne. Jeeli otrzymae t wiadomo omykowo, prosimy niezwocznie zawiadomi nadawc wysyajc odpowied oraz trwale usun t wiadomo wczajc w to wszelkie jej kopie wydrukowane lub zapisane na dysku. This e-mail may contain legally privileged information of the Bank and is intended solely for business use of the addressee. This e-mail may only be received by the addressee and may not be disclosed to any third parties. If you are not the intended addressee of this e-mail or the employee authorised to forward it to the addressee, be advised that any dissemination, copying, distribution or any other similar activity is legally prohibited and may be punishable. If you received this e-mail by mistake please advise the sender immediately by using the reply facility in your e-mail software and delete permanently this e-mail including any copies of it either printed or saved to hard drive. BRE Bank SA, 00-950 Warszawa, ul. Senatorska 18, tel. +48 (22) 829 00 00, fax +48 (22) 829 00 33, www.brebank.pl, e-mail: [email protected] Sd Rejonowy dla m. st. Warszawy XII Wydzia Gospodarczy Krajowego Rejestru Sdowego, nr rejestru przedsibiorców KRS 0000025237, NIP: 526-021-50-88. Wedug stanu na dzie 01.01.2012 r. kapita zakadowy BRE Banku SA (w caoci wpacony) wynosi 168.410.984 zotych. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
