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Status Not under consideration
Workspace z/OS
Categories RACF
Created by Guest
Created on May 18, 2020

ACEECHK to report UNIX pathname and detect change to UID/GID

ACEE modification checking introduced in z/OS 2.4 detects modifications to the base ACEE successfully, but if the modifying program is a UNIX program object, the resulting IRR421I message does not show the full path or program name responsible. Instead, *PATHNAM is shown as a placeholder. For example:
"IRR421I ACEE modification detected 304
for user ADCDMST in address space ID 0x0000006E running under user
ADCDMST and job name ADCDA9 while program *PATHNAM is running. The
RACF function detecting the modification is IRRRCK00.
Rsn=0x20008000. (ACEESPEC is ON) (ACEEUSRI: expected ADCDA, actual
ADCDMST). Occurrences 1. Resource=VERY.SECRET.STUFF(DATASET). Call
chain: *PATHNAM"

In addition, if any program (MVS or UNIX) modifies the UID or GID in the USP linked from the ACEE, this modification is not detected.

IMHO, these issues represent a significant hole in ACEE modification detection.

Idea priority Medium
  • Guest
    Reply
    |
    Aug 4, 2023
    This item is a valid requirement but unlikely to be given high enough priority to be placed into the product plan. If this requirement is high value, please re-open it, or open a new requirement.