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

CA-TSS security administrator must develop a process to suspend userids found inactive for more than 35 days.

DISA Rule

SV-223953r561402_rule

Vulnerability Number

V-223953

Group Title

SRG-OS-000118-GPOS-00060

Rule Version

TSS0-ES-000800

Severity

CAT II

CCI(s)

• CCI-000795 - The organization manages information system identifiers by disabling the identifier after an organization-defined time period of inactivity.

Weight

10

Fix Recommendation

Develop a procedure to check all userids for inactivity of more than "35" days. If found, the ISSO must suspend an account, but not delete it until it is verified by the local ISSO that the user no longer requires access. If verification is not received within "60" days, the account may be deleted.

Check Contents

From the ISPF Command Shell enter:
TSS LIST(ACIDS)

If every user shows a LAST-USED=yy.ddd within the past "35" days, this is not a finding.

NOTE: VALID FOR INTERACTIVE USERIDS, NOT VALID FOR STARTED TASK USERIDS AND BATCH USERIDS.

Vulnerability Number

V-223953

Documentable

False

Rule Version

TSS0-ES-000800

Severity Override Guidance

From the ISPF Command Shell enter:
TSS LIST(ACIDS)

If every user shows a LAST-USED=yy.ddd within the past "35" days, this is not a finding.

NOTE: VALID FOR INTERACTIVE USERIDS, NOT VALID FOR STARTED TASK USERIDS AND BATCH USERIDS.

Check Content Reference

M

Target Key

4102

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