Details

Reserved UIDs are typically used by system software packages. If non-system accounts have UIDs in this range, they may conflict with system software, possibly leading to the user having permissions to modify system files.

NOTE: Nessus has provided the target output to assist in reviewing the benchmark to ensure target compliance.

Solution

Using the ‘usermod’ command, change the UID numbers for non-system accounts with reserved UIDs (those less or equal to 128):
# usermod -u [user_name]

Supportive Information

The following resource is also helpful.

• https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_IBM_AIX_7-x_V2R3_STIG.zip

This security hardening control applies to the following category of controls within NIST 800-53: Configuration Management.This control applies to the following type of system Unix.

References

• 800-53|CM-6b.
• CAT|II
• CCI|CCI-000366
• Rule-ID|SV-215195r508663_rule
• STIG-ID|AIX7-00-001036
• STIG-Legacy|SV-101763
• STIG-Legacy|V-91665
• Vuln-ID|V-215195

Source

• Tenable.com/audits