Title

The operating system must require individuals to be authenticated with an individual authenticator prior to using a group authenticator. (Cat II impact)

Discussion

Allowing any user to elevate their privileges can allow them excessive control of the system tools.

Check Content

Verify the root user is configured as a role, rather than a normal user. # userattr type root If the command does not return the word "role", this is a finding. Verify at least one local user has been assigned the root role. # grep '[:;]roles=root[^;]*' /etc/user_attr If no lines are returned, or no users are permitted to assume the root role, this is a finding.

Fix Text

The root role is required. Convert the root user into a role. # usermod -K type=role root Add the root role to authorized users' logins. # usermod -R +root [username] Remove the root role from users who should not be authorized to assume it. # usermod -R -root [username]

Additional Identifiers

Rule ID: SV-216340r603267_rule

Vulnerability ID: V-216340

Group Title: SRG-OS-000109

Expert Comments

CCIs tied to check.

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