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

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-223953TSS0-ES-000800SV-223953r998496_ruleCCI-003627medium
Description
Inactive identifiers pose a risk to systems and applications because attackers may exploit an inactive identifier and potentially obtain undetected access to the system. Owners of inactive accounts will not notice if unauthorized access to their user account has been obtained. Operating systems need to track periods of inactivity and disable application identifiers after 35 days of inactivity.
STIGDate
IBM z/OS TSS Security Technical Implementation Guide2026-06-15

Related Frameworks

1 mapping across 3 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

IAC-15.3Disable Inactive Accounts
1.00
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (68) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-10Concurrent Session Control
1.00
AC-17(10)Authenticate Remote Commands
1.00
AC-2Account Management
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(10)Shared and Group Account Credential Change
1.00
AC-2(11)Usage Conditions
1.00
AC-2(2)Automated Temporary and Emergency Account Management
1.00
AC-2(3)Disable Accounts
1.00
AC-2(4)Automated Audit Actions
1.00
AC-2(7)Privileged User Accounts
1.00

+58 more (top 10 by confidence shown)

CCI1 mapping
CCI-003627
1.00

Details

Check Text (C-223953r998496_chk)

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.

Fix Text (F-25614r998398_fix)

Develop a procedure to check all userids for inactivity of more than "35" days. If found, the information system security officer (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.