Check: TOSS-04-010230
Tri-Lab Operating System Stack (TOSS) 4 STIG:
TOSS-04-010230
(in version v2 r1)
Title
TOSS must require reauthentication when using the "sudo" command. (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 organization requires the user to reauthenticate when using the "sudo" command. If the value is set to an integer less than 0, the user's time stamp will not expire and the user will not have to reauthenticate for privileged actions until the user's session is terminated.
Check Content
Verify the operating system requires reauthentication when using the "sudo" command to elevate privileges. $ sudo egrep -ir 'timestamp_timeout' /etc/sudoers /etc/sudoers.d /etc/sudoers:Defaults timestamp_timeout=0 If "timestamp_timeout" is set to a negative number, is commented out, or no results are returned, this is a finding.
Fix Text
Configure the "sudo" command to require reauthentication. Edit the /etc/sudoers file: $ sudo visudo Add or modify the following line: Defaults timestamp_timeout=0
Additional Identifiers
Rule ID: SV-252931r987879_rule
Vulnerability ID: V-252931
Group Title: SRG-OS-000373-GPOS-00158
Expert Comments
CCIs
| Number | Definition |
|---|---|
| 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 |
|---|---|
| No controls are assigned to this check |