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Check: RHEL-08-010381

RHEL 8 STIG: RHEL-08-010381 (in versions v1 r14 through v1 r1)

Title

RHEL 8 must require users to reauthenticate 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 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 "!authenticate". Check that the "/etc/sudoers" file has no occurrences of "!authenticate" by running the following command: $ sudo grep -i !authenticate /etc/sudoers /etc/sudoers.d/* If any occurrences of "!authenticate" return from the command, this is a finding.

Fix Text

Remove any occurrence of "!authenticate" found in "/etc/sudoers" file or files in the "/etc/sudoers.d" directory.

Additional Identifiers

Rule ID: SV-230272r854027_rule

Vulnerability ID: V-230272

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

Expert Comments

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CCIs

CCIs tied to check.

Number	Definition
CCI-002038	The organization requires users to reauthenticate upon organization-defined circumstances or situations requiring reauthentication.

Controls

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

Number	Title
IA-11	Re-Authentication