On Classified Systems, Logical Partition must be restricted with read/write access to only its own IOCDS.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-256863 | SRG-OS-000080-GPOS-00048 | HLP0020 | SV-256863r958472_rule | 2024-06-24 | 2 |
Description
Unrestricted control over the IOCDS files could result in unauthorized updates and impact the configuration of the environment by allowing unauthorized access to a restricted resource. This could severely damage the integrity of the environment and the system resources.
ℹ️ Check
Using the Hardware Management Console, verify that a logical partition cannot read or write to any IOCDS. Use the Security Definitions Page panel to do this by checking to see if the Input/Output (I/O) Configuration Control option has been turned on.
NOTE: The default is applicable to only classified systems.
Confirm whether or not the I/O Configuration Control option is checked.
If the Logical Partition is not restricted with read/write access to only its own IOCDS, this is a FINDING.
✔️ Fix
Review the Security Definition parameters specified under Processor Resource/Systems Manager (PR/SM).
Verify and implement the correct settings.