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V-254861

CAT II (Medium)

Tanium must automatically lock accounts and require them be unlocked by an administrator when three unsuccessful login attempts in 15 minutes are exceeded.

Rule ID

SV-254861r1067744_rule

STIG

Tanium 7.x Operating System on TanOS Security Technical Implementation Guide

Version

V2R2

CCIs

CCI-002238

Discussion

By limiting the number of failed login attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute forcing, is reduced. Limits are imposed by locking the account.

Check Content

1. Log in to Tanium interactively as a TanAdmin user.

2. Type "A" for "Appliance Configuration Menu".

3. Type "A" for Security.

4. Type "P" for Security Policy.

5. The section for "Account lockout:" should read "0 seconds after 3 failures".

If the section reads anything else, this is a finding.

Fix Text

1. Log in to Tanium interactively as a TanAdmin user. 

2. Type "A" for "Appliance Configuration Menu".

3. Type "A" for "Security". 

4. Type "P" for "Security Policy". 

5. Type "L" for "Account Lockout Time".

6. Set the account lockout time to "0".

Note: The time range for the three failures to occur is 15 minutes by default and cannot be configured otherwise.