STIGQter: STIG Summary: IBM z/OS ACF2 Security Technical Implementation Guide Version: 8 Release: 2 Benchmark Date: 23 Apr 2021:

IBM z/OS user account for the UNIX kernel (OMVS) must be properly defined to the security database.

DISA Rule

SV-223494r533198_rule

Vulnerability Number

V-223494

Group Title

SRG-OS-000104-GPOS-00051

Rule Version

ACF2-ES-000760

Severity

CAT II

CCI(s)

• CCI-000764 - The information system uniquely identifies and authenticates organizational users (or processes acting on behalf of organizational users).

Weight

10

Fix Recommendation

Define the OMVS (IBM default name for USS Kernel), as specified below:

No access to interactive on-line facilities (e.g., TSO, CICS, etc.)
Default group specified as OMVSGRP or STCOMVS
UID(0)
HOME directory specified as "/"
Shell program specified as "/bin/sh"

Check Contents

From the ISPF Command Shell enter:
ACF
SET LID
SET VERBOSE
LIST OMVS SECTION(ALL) PROFILE(OMVS)

If OMVS is defined as follows, this is not a finding.

No access to interactive on-line facilities (e.g., TSO, CICS, etc).
Default group specified as OMVSGRP or STCOMVS
UID(0)
HOME directory specified as “/”
Shell program specified as “/bin/sh”

If OMVS is not defined as specified in above, this is a finding.

Vulnerability Number

V-223494

Documentable

False

Rule Version

ACF2-ES-000760

Severity Override Guidance

From the ISPF Command Shell enter:
ACF
SET LID
SET VERBOSE
LIST OMVS SECTION(ALL) PROFILE(OMVS)

If OMVS is defined as follows, this is not a finding.

No access to interactive on-line facilities (e.g., TSO, CICS, etc).
Default group specified as OMVSGRP or STCOMVS
UID(0)
HOME directory specified as “/”
Shell program specified as “/bin/sh”

If OMVS is not defined as specified in above, this is a finding.

Check Content Reference

M

Target Key

4100

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