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

IBM z/OS UNIX BPXPRMxx security parameters in PARMLIB must be properly specified.

DISA Rule

SV-223631r533198_rule

Vulnerability Number

V-223631

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

ACF2-US-000160

Severity

CAT II

CCI(s)

• CCI-000366 - The organization implements the security configuration settings.

Weight

10

Fix Recommendation

Define the settings in PARMLIB member BPXPRMxx for z/OS UNIX security parameters values to conform to the specifications below:
Parameter Keyword Value
SUPERUSER BPXROOT
TTYGROUP TTY
STEPLIBLIST /etc/steplib
USERIDALIASTABLE Will not be specified.
ROOT SETUID will be specified
MOUNT NOSETUIDSETUID (for Vendor-provided files)SECURITY
STARTUP_PROC OMVS

Check Contents

Refer to the proper BPXPRMxx member in SYS1.PARMLIB.

If the required parameter keywords and values are defined as detailed below, this is not a finding.

Parameter Keyword Value
SUPERUSER BPXROOT
TTYGROUP TTY
STEPLIBLIST /etc/steplib
USERIDALIASTABLE Will not be specified.
ROOT SETUID will be specified
MOUNT NOSETUID
SETUID (for Vendor-provided files)SECURITY
STARTUP_PROC OMVS

Vulnerability Number

V-223631

Documentable

False

Rule Version

ACF2-US-000160

Severity Override Guidance

Refer to the proper BPXPRMxx member in SYS1.PARMLIB.

If the required parameter keywords and values are defined as detailed below, this is not a finding.

Parameter Keyword Value
SUPERUSER BPXROOT
TTYGROUP TTY
STEPLIBLIST /etc/steplib
USERIDALIASTABLE Will not be specified.
ROOT SETUID will be specified
MOUNT NOSETUID
SETUID (for Vendor-provided files)SECURITY
STARTUP_PROC OMVS

Check Content Reference

M

Target Key

4100

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