1.4.3 Ensure authentication required for single user mode - rescue.service

Information

Single user mode is used for recovery when the system detects an issue during boot or by manual selection from the bootloader.

Rationale:

Requiring authentication in single user mode prevents an unauthorized user from rebooting the system into single user to gain root privileges without credentials.

Solution

Edit /etc/sysconfig/init and set SINGLE to '/sbin/sulogin':

SINGLE=/sbin/sulogin

See Also

https://workbench.cisecurity.org/files/3152

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6, CSCv6|5.1, CSCv7|5.1

Plugin: Unix

Control ID: add4c4d1575cb5530e10693c49375bb1473e0586a14494bef5e20937189d93f6