RE: IBM i security question

from: Rob Berendt <rob@xxxxxxxxx>
subject: RE: IBM i security question

Yes, it was pointed out to me that GO is not allowed from a user with
limited capabilities.
However try this
CRTUSRPRF DUMMY PASSWORD(DUMMY) LMTCPB(*YES)
Sign on as DUMMY.
You will be at the MAIN menu.
So, if you believe that you have a great " Initial program to call . . .
. INLPGM" set up then I suggest you make their "Initial menu . . . . . . .
. . . INLMNU" set to *SIGNOFF.

Rob Berendt
--
IBM Certified System Administrator - IBM i 6.1
Group Dekko
Dept 1600
Mail to: 7310 Innovation Blvd, Suite 104
Ft. Wayne, IN 46818
Ship to: 7310 Innovation Blvd, Dock 9C
Ft. Wayne, IN 46818
http://www.dekko.com


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Sent: Wednesday, June 23, 2021 9:22 AM
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Subject: RE: IBM i security question

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Just tested this scenario (a limited capabilities user typing GO MAIN)

The user gets CPD0175 Command GO in library *LIBL not allowed

Gad

date: Tue, 22 Jun 2021 20:38:17 +0000
from: Rob Berendt <rob@xxxxxxxxx>
subject: RE: IBM i security question

Quite simple really.
CHGCMD CMD(SIGNOFF) ALWLMTUSR(*YES)
So your users can have command line but only to the commands with
ALWLMTUSR(*YES)

Here's a scary thing to try:
Sign on as a user with limited capability
Type in this command:
GO MAIN
4. Files, libraries, and folders
1. Files

1. Work with files
4=Delete
Or
7. Data File Utility (DFU)

This is why we changed all limited capability users from
Initial menu . . . . . . . . . . MAIN
To
Initial menu . . . . . . . . . . *SIGNOFF

With *SIGNOFF if they exit their initial program they are signed off
instead of returned to the MAIN menu.

That project to secure the data so they can only get to it via
"Application Only Access" keeps getting back burnered.


Rob Berendt
--
IBM Certified System Administrator - IBM i 6.1
Group Dekko
Dept 1600
Mail to: 7310 Innovation Blvd, Suite 104
Ft. Wayne, IN 46818
Ship to: 7310 Innovation Blvd, Dock 9C
Ft. Wayne, IN 46818
http://www.dekko.com

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