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Check: WN19-SO-000090

Microsoft Windows Server 2019 STIG: WN19-SO-000090 (in versions v2 r9 through v1 r1)

Title

Windows Server 2019 computer account password must not be prevented from being reset. (Cat II impact)

Discussion

Computer account passwords are changed automatically on a regular basis. Disabling automatic password changes can make the system more vulnerable to malicious access. Frequent password changes can be a significant safeguard for the system. A new password for the computer account will be generated every 30 days.

Check Content

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: DisablePasswordChange Value Type: REG_DWORD Value: 0x00000000 (0)

Fix Text

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Domain member: Disable machine account password changes" to "Disabled".

Additional Identifiers

Rule ID: SV-205815r877039_rule

Vulnerability ID: V-205815

Group Title: SRG-OS-000379-GPOS-00164

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CCIs

CCIs tied to check.

Number	Definition
CCI-001967	The information system authenticates organization-defined devices and/or types of devices before establishing a local, remote, and/or network connection using bidirectional authentication that is cryptographically based.

Controls

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

Number	Title
IA-3 (1)	Cryptographic Bidirectional Authentication