STIGQter: STIG Summary: IBM z/OS RACF Security Technical Implementation Guide Version: 8 Release: 3 Benchmark Date: 23 Apr 2021:

IBM z/OS UNIX security parameters in etc/profile must be properly specified.

DISA Rule

SV-223842r604139_rule

Vulnerability Number

V-223842

Group Title

SRG-OS-000080-GPOS-00048

Rule Version

RACF-US-000050

Severity

CAT II

CCI(s)

• CCI-000213 - The information system enforces approved authorizations for logical access to information and system resources in accordance with applicable access control policies.

Weight

10

Fix Recommendation

Configure the etc/profile to specify the UMASK command is executed with a value of 077 and the LOGNAME variable is marked read-only for the /etc/profile file, exceptions are documented with the ISSO.

Check Contents

From the ISPF Command Shell enter:
ISHELL
/etc/profile

If the final or only instance of the UMASK command in /etc/profile is specified as “umask 077”, this is not a finding.

If the LOGNAME variable is marked read-only (i.e., “readonly LOGNAME”) in /etc/profile, this is not a finding.

Vulnerability Number

V-223842

Documentable

False

Rule Version

RACF-US-000050

Severity Override Guidance

From the ISPF Command Shell enter:
ISHELL
/etc/profile

If the final or only instance of the UMASK command in /etc/profile is specified as “umask 077”, this is not a finding.

If the LOGNAME variable is marked read-only (i.e., “readonly LOGNAME”) in /etc/profile, this is not a finding.

Check Content Reference

M

Target Key

4101

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