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

CA-ACF2 must limit Write or greater access to all LPA libraries to system programmers only.

DISA Rule

SV-223450r533198_rule

Vulnerability Number

V-223450

Group Title

SRG-OS-000080-GPOS-00048

Rule Version

ACF2-ES-000290

Severity

CAT I

CCI(s)

• CCI-001499 - The organization limits privileges to change software resident within software libraries.
• CCI-000213 - The information system enforces approved authorizations for logical access to information and system resources in accordance with applicable access control policies.
• CCI-002235 - The information system prevents non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures.

Weight

10

Fix Recommendation

Review access authorization to critical system files. Evaluate the impact of correcting the deficiency. Develop a plan of action and implement the changes required to protect LPA Libraries.

Configure the update and allocate access to all LPA libraries to be limited to system programmers only and all update and allocate access is logged.

Check Contents

From Any ISPF input line, enter TSO ISRDDN LPA.

If all of the following are untrue, this is not a finding.

If any of the following is true, this is a finding.

The ACP data set rules for LPA libraries do not restrict UPDATE and/or ALTER access to only z/OS systems programming personnel.

The ACP data set rules for LPA libraries do not specify that all (i.e., failures and successes) UPDATE and/or ALTER access will be logged.

Vulnerability Number

V-223450

Documentable

False

Rule Version

ACF2-ES-000290

Severity Override Guidance

From Any ISPF input line, enter TSO ISRDDN LPA.

If all of the following are untrue, this is not a finding.

If any of the following is true, this is a finding.

The ACP data set rules for LPA libraries do not restrict UPDATE and/or ALTER access to only z/OS systems programming personnel.

The ACP data set rules for LPA libraries do not specify that all (i.e., failures and successes) UPDATE and/or ALTER access will be logged.

Check Content Reference

M

Target Key

4100

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