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IBM z/OS system administrator must develop a procedure to notify system administrators and ISSOs of account enabling actions.


Overview

Finding ID Version Rule ID IA Controls Severity
V-223579 ACF2-OS-002390 SV-223579r533198_rule Medium
Description
Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to enable an existing disabled account. Sending notification of account enabling actions to the system administrator and ISSO is one method for mitigating this risk. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and also provides logging that can be used for forensic purposes.
STIG Date
IBM z/OS ACF2 Security Technical Implementation Guide 2022-06-22

Details

Check Text ( C-25252r500872_chk )
Ask the system administrator for the procedure to notify system administrators and ISSOs of account enabling actions.

If no procedures are in place, this is a finding.
Fix Text (F-25240r500873_fix)
Develop and document a procedure to notify system administrators and ISSOs of account enabling actions.