Check: WN12-AC-000001
Microsoft Windows Server 2012/2012 R2 Member Server STIG:
WN12-AC-000001
(in versions v3 r7 through v2 r9)
Title
Windows 2012 account lockout duration must be configured to 15 minutes or greater. (Cat II impact)
Discussion
The account lockout feature, when enabled, prevents brute-force password attacks on the system. This parameter specifies the period of time that an account will remain locked after the specified number of failed logon attempts.
Check Content
Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Account Lockout Policy. If the "Account lockout duration" is less than "15" minutes (excluding "0"), this is a finding. Configuring this to "0", requiring an administrator to unlock the account, is more restrictive and is not a finding.
Fix Text
Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Account Lockout Policy >> "Account lockout duration" to "15" minutes or greater. A value of "0" is also acceptable, requiring an administrator to unlock the account.
Additional Identifiers
Rule ID: SV-225266r852182_rule
Vulnerability ID: V-225266
Group Title: SRG-OS-000329-GPOS-00128
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-002238 |
The information system automatically locks the account or node for either an organization-defined time period, until the locked account or node is released by an administrator, or delays the next logon prompt according to the organization-defined delay algorithm when the maximum number of unsuccessful logon attempts is exceeded. |
Controls
| Number | Title |
|---|---|
| AC-7 |
Unsuccessful Logon Attempts |