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.IMAGELIB to system programmers.

DISA Rule

SV-223447r533198_rule

Vulnerability Number

V-223447

Group Title

SRG-OS-000080-GPOS-00048

Rule Version

ACF2-ES-000260

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/or ALLOCATE access to SYS1.IMAGELIB to be limited to system programmers only and all update and allocate access is logged.

Review access authorization to critical system files. Evaluate the impact of correcting the deficiency. Develop a plan of action and implement the changes as required to protect SYS1.IMAGELIB.

SYS1.IMAGELIB is automatically APF-authorized. This data set contains modules, images, tables, and character sets which are essential to system print services.

Check Contents

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

If the following guidance is true, this is not a finding.

The ACP data set rules for SYS1.IMAGELIB allow inappropriate access.

The ACP data set rules for SYS1.IMAGELIB do not restrict UPDATE and/or ALTER access to only systems programming personnel.

The ACP data set rules for SYS1.IMAGELIB do not specify that all (i.e., failures and successes) UPDATE and/or ALTER access will be logged.

Vulnerability Number

V-223447

Documentable

False

Rule Version

ACF2-ES-000260

Severity Override Guidance

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

If the following guidance is true, this is not a finding.

The ACP data set rules for SYS1.IMAGELIB allow inappropriate access.

The ACP data set rules for SYS1.IMAGELIB do not restrict UPDATE and/or ALTER access to only systems programming personnel.

The ACP data set rules for SYS1.IMAGELIB 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

Comments