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UBTU-22-432010 Ubuntu 22.04 LTS must require users to reauthenticate for privilege escalation or when changing roles.

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

Ubuntu 22.04 LTS must require users to reauthenticate for privilege escalation or when changing roles.

Control

Verify the "/etc/sudoers" file has no occurrences of "!authenticate" with the following command: $ sudo egrep -iR '!authenticate' /etc/sudoers /etc/sudoers.d/ If any occurrences of "!authenticate" return from the command, 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 the user reauthenticate. Satisfies: SRG-OS-000373-GPOS-00156, SRG-OS-000373-GPOS-00157

Related controls

CCI-002038, CCI-004895

Fix

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