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 SYS1.SVCLIB to system programmers only.

DISA Rule

SV-223453r533198_rule

Vulnerability Number

V-223453

Group Title

SRG-OS-000080-GPOS-00048

Rule Version

ACF2-ES-000320

Severity

CAT I

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.
• CCI-001499 - The organization limits privileges to change software resident within software libraries.
• 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

Configure update and allocate access to SYS1.SVCLIB to be limited to system programmers only and all Update and Allocate access is logged and reviewed. Evaluate the impact of correcting the deficiency. Develop a plan of action and implement the changes for SYS1.SVCLIB. SYS1.SVCLIB contains SVCs and I/O appendages as such: they are very powerful and will be strictly controlled to avoid compromising system integrity.

Check Contents

Execute a data set list of access for SYS1.SVCLIB.

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

If any of the following are untrue this is a finding.

ESM data set rules for SYS1.SVCLIB restrict UPDATE and/or ALTER access to only z/OS systems programming personnel.
ESM data set rules for SYS1.SVCLIB specify that all (i.e., failures and successes) UPDATE and/or ALTER access will be logged.

Vulnerability Number

V-223453

Documentable

False

Rule Version

ACF2-ES-000320

Severity Override Guidance

Execute a data set list of access for SYS1.SVCLIB.

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

If any of the following are untrue this is a finding.

ESM data set rules for SYS1.SVCLIB restrict UPDATE and/or ALTER access to only z/OS systems programming personnel.
ESM data set rules for SYS1.SVCLIB specify that all (i.e., failures and successes) UPDATE and/or ALTER access will be logged.

Check Content Reference

M

Target Key

4100

Comments