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RHEL-09-432025 RHEL 9 must require users to reauthenticate for privilege escalation.

DISA STIG library V2R10
All changes in this version
first version loaded CAT II

Maps to IA-11, SC-11 via CCI-004895, CCI-002038

Title

RHEL 9 must require users to reauthenticate for privilege escalation.

Control

Verify that "/etc/sudoers" has no occurrences of "!authenticate" with the following command: $ sudo egrep -iR '!authenticate' /etc/sudoers /etc/sudoers.d/ If any occurrences of "!authenticate" are returned, this is a finding.

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

Related controls

CCI-002038, CCI-004895

Fix

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