Common Controls Hub
The domain controller must be configured to allow reset of machine account passwords.
Enabling this setting on all domain controllers in a domain prevents domain members from changing their computer account passwords. If these passwords are weak or compromised, the inability to change them may leave these computers vulnerable.
Active Directory Service 2008 Security Technical Implementation Guide (STIG)
Check Text ( C-32084r1_chk )
1. Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view.
2. Navigate to Local Policies and select Security Options.
3. If the value for “Domain Controller: Refuse machine account password changes” is set to "Enabled", then this is a finding.
Fix Text (F-28441r1_fix)
Set the value for “Domain Controller: Refuse machine account password changes” to “Disabled”.
The policy referenced configures the following registry value:
Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: \System\CurrentControlSet\Services\Netlogon\Parameters\
Value Name: RefusePasswordChange
Value Type: REG_DWORD