Check: UBTU-20-010014
Canonical Ubuntu 20.04 LTS STIG:
UBTU-20-010014
(in versions v1 r12 through v1 r1)
Title
The Ubuntu operating system must require users to reauthenticate for privilege escalation or when changing roles. (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
Check Content
Verify the "/etc/sudoers" file has no occurrences of "NOPASSWD" or "!authenticate" by running the following command: $ sudo egrep -i '(nopasswd|!authenticate)' /etc/sudoers /etc/sudoers.d/* If any occurrences of "NOPASSWD" or "!authenticate" return from the command, this is a finding.
Fix Text
Remove any occurrence of "NOPASSWD" or "!authenticate" found in "/etc/sudoers" file or files in the "/etc/sudoers.d" directory.
Additional Identifiers
Rule ID: SV-238208r853405_rule
Vulnerability ID: V-238208
Group Title: SRG-OS-000373-GPOS-00156
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-002038 |
The organization requires users to reauthenticate upon organization-defined circumstances or situations requiring reauthentication. |
Controls
Number | Title |
---|---|
IA-11 |
Re-Authentication |