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V-248541

CAT II (Medium)

OL 8 operating systems must require authentication upon booting into rescue mode.

Rule ID

SV-248541r1137691_rule

STIG

Oracle Linux 8 Security Technical Implementation Guide

Version

V2R8

CCIs

CCI-000213

Discussion

If the system does not require valid root authentication before it boots into emergency or rescue mode, anyone who invokes emergency or rescue mode is granted privileged access to all files on the system.

Check Content

Determine if the system requires authentication for rescue mode with the following command: 
 
$ sudo grep sulogin-shell /usr/lib/systemd/system/rescue.service 
 
ExecStart=-/usr/lib/systemd/systemd-sulogin-shell rescue 
 
If the "ExecStart" line is configured for anything other than "/usr/lib/systemd/systemd-sulogin-shell rescue" or is commented out or missing, this is a finding.

Fix Text

Configure the system to require authentication upon booting into rescue mode by adding the following line to the "/usr/lib/systemd/system/rescue.service" file: 
 
ExecStart=-/usr/lib/systemd/systemd-sulogin-shell rescue