V-224725
SV-224725r1146379_rule
CAT II
A password control is not in place to restrict access to the service subsystem via the operator consoles (local and/or remote) and a key-lock switch is not used to protect the modem supporting the remote console of the service subsystem.
From: zOS Front End Processor for TSS Security Technical Implementation Guide (V7R2)
Description
<VulnDiscussion>If components of the FEPs are not properly protected they can be stolen, damaged, or disturbed. Without adequate physical security, unauthorized users can access the control panel, the operator console, and the diskette drive of the service subsystem. Therefore, they can interfere with the normal operations of the FEPs. Improper control of FEP components could compromise network operations.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
Check Procedure
Review site documentation to validate that procedures are in place to protect the FEP service subsystem and diskette drive:
Documents and procedures restricting access to the functions of the service subsystem from the local and/or remote operator consoles (e.g., physical access, password control, key-lock switch of modems, etc.). If the following guidance is true, this is not a finding.
Ensure password controls are in place to restrict access to the service subsystem via the operator consoles (local and/or remote).
Ensure a key-lock switch is used to protect the modem supporting the remote console of the service subsystem.
Ensure documents and procedures exist for any of the above functions of the service subsystem and FEP resources.
Fix Text
If any of the below procedures are not in place, than correct the situation by documenting the missing procedure(s).
The systems programmer should validate that Control authorization to use service subsystem console (local or remote) by FEP internal security control through password validation. Restrict access to these passwords to the absolutely minimum number of necessary personnel. Use of vendor default passwords is prohibited. Assign different passwords for the local and remote consoles. Disconnect the local/remote console after three unsuccessful attempts to log on. Passwords used by vendor (COMTEN, IBM, CNT, or AMDAHL) service personnel will be changed after any maintenance is done. All passwords will be changed every 90 days. Restrict permission to change passwords only to authorized personnel.
Use a key lock switch on the modem supporting the remote console of the service subsystem to prevent unauthorized access. The key lock switch is only open for scheduled and authorized remote access.
CCI Reference
CCI-000213- Created
- 2026-04-07 20:08:44
- Last Updated
- 2026-04-07 20:08:44