Check: RHEL-09-611085
RHEL 9 STIG:
RHEL-09-611085
(in version v2 r3)
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 from the command and have not been documented with the information system security officer (ISSO) as an organizationally defined administrative group using MFA, 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 find /etc/sudoers /etc/sudoers.d -type f -exec sed -i '/NOPASSWD/ s/^/# /g' {} \;
Additional Identifiers
Rule ID: SV-258106r1050789_rule
Vulnerability ID: V-258106
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. |
| CCI-004895 |
Permit users to invoke the trusted communications path for communications between the user and the organization-defined security functions, including at a minimum, authentication and re-authentication. |
Controls
| Number | Title |
|---|---|
| IA-11 |
Re-authentication |