Title

RHEL 9 must require users to provide a password for privilege escalation. (Cat II impact)

Discussion

Without reauthentication, users may access resources or perform tasks for which they do not have authorization. When operating systems provide the capability to escalate a functional capability, it is critical that the user reauthenticate. Satisfies: SRG-OS-000373-GPOS-00156, SRG-OS-000373-GPOS-00157, SRG-OS-000373-GPOS-00158

Check Content

Verify that "/etc/sudoers" has no occurrences of "NOPASSWD" with the following command: $ sudo grep -ri nopasswd /etc/sudoers /etc/sudoers.d/* If any occurrences of "NOPASSWD" are returned, this is a finding.

Fix Text

Configure RHEL 9 to not allow users to execute privileged actions without authenticating with a password. Remove any occurrence of "NOPASSWD" found in "/etc/sudoers" file or files in the "/etc/sudoers.d" directory. $ sudo sed -i '/NOPASSWD/ s/^/# /g' /etc/sudoers /etc/sudoers.d/*

Additional Identifiers

Rule ID: SV-258106r926305_rule

Vulnerability ID: V-258106

Group Title: SRG-OS-000373-GPOS-00156

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.