Emergency LOGONIDs must be properly defined.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-168	ACF0690	SV-168r3_rule		Medium

Description
Emergency USERIDs are necessary in the event of a system outage for recovery purposes. It is critical that those USERIDs be defined with the appropriate access to ensure timely restoration of services..

STIG	Date
z/OS ACF2 STIG	2019-12-12

Details

Check Text ( C-72937r1_chk )

a) Refer to the following report produced by the ACF2 Data Collection: - ACF2CMDS.RPT(LOGONIDS) Refer to the following report produced by the z/OS Data Collection: - EXAM.RPT(TSOUADS) b) At a minimum an emergency logonid will exists with the security administration attributes specified in accordance with the following requirements: For emergency IDs with security administration privileges, but which cannot access and update system data sets: ACCOUNT JCL JOB MONITOR NONON CNCL RULEVLD RSRCVLD SECURITY TSO TSOPROC(xxxxxxxx) TSOACCT(none) An additional class of userids can exist to perform all operating system functions except ACP administration. These emergency logonid / logonid(s) will have ability to access and update all system data sets, but will not have security administration privileges. See the following requirements: JCL JOB MONITOR NON CNCL (Will force logging of all activity.) TSO TSOPROC(xxxxxxxx) TSOACCT(none) All emergency logonid / logonid(s) are to be implemented with logging to provide an audit trail of their activities. All emergency logonid / logonid(s) are to be maintained in both the ACP and SYS1.UADS to ensure they are available in the event that the ACP is not functional. All emergency logonid / logonid(s) will have distinct, different passwords in SYS1.UADS and in the ACP, and the site is to establish procedures to ensure that the passwords differ. The password for any ID in SYS1.UADS is never to match the password for the same ID in the ACP. All emergency logonid / logonid(s) will have documented procedures to provide a mechanism for the use of the IDs. Their release for use is to be logged, and the log is to be maintained by the ISSO. When an emergency logonid is released for use, its password is to be reset by the ISSO within 12 hours. c) If all items in (b) are true, there is NO FINDING. d) If any item in (b) is untrue, this is a FINDING.

Fix Text (F-79243r1_fix)

Ensure that Emergency Logonids use these fields to enforce restrictions for Emergency Userids. Two classes of emergency userids may exist. The following privileges and specifications will be used for these logonids: Note: Only the emergency logonid with the security administration logonid attributes is required. (1) For emergency IDs with the ability to access and update all system data sets, but which do not have security administration privileges: NOFSRETAIN JCL JOB MONITOR NON CNCL (Will force logging of all activity.) TSO TSOPROC(xxxxxxxx) TSOACCT(none) Example: SET LID INSERT logonid NOFSRETAIN JCL JOB MONITOR NON-CNCL TSO TSOPRC(xxxxxxxx) TSOACCT(none) (2) For emergency IDs with security administration privileges, but which cannot access and update system data sets: ACCOUNT NOFSRETAIN JCL JOB MONITOR NONON CNCL RULEVLD RSRCVLD SECURITY TSO TSOPROC(xxxxxxxx) TSOACCT(none) Example: SET LID INSERT logonid ACCOUNT NOFSRETAIN JCL JOB MONITOR RULEVLD RSRCVLD NONON-CNCL SECURITY TSO TSOPRC(xxxxxxxx) TSOACCT(none)