STIGQter: STIG Summary: Microsoft Windows Server 2025 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 01 Jul 2026:

Windows Server 2025 unencrypted passwords must not be sent to third-party Server Message Block (SMB) servers.

DISA Rule

SV-278212r1181342_rule

Vulnerability Number

V-278212

Group Title

SRG-OS-000074-GPOS-00042

Rule Version

WN25-SO-000180

Severity

CAT II

CCI(s)

• CCI-000197 - For password-based authentication, transmit passwords only cryptographically-protected channels.

Weight

10

Fix Recommendation

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> Microsoft Network Client: Send unencrypted password to third-party SMB servers to "Disabled".

Check Contents

If the following registry value does not exist or is not configured as specified, this is a finding:

Registry HiveHKEY_LOCAL_MACHINE
Registry Path\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters\

Value NameEnablePlainTextPassword

Value TypeREG_DWORD
Value0x00000000 (0)

Vulnerability Number

V-278212

Documentable

False

Rule Version

WN25-SO-000180

Severity Override Guidance

If the following registry value does not exist or is not configured as specified, this is a finding:

Registry HiveHKEY_LOCAL_MACHINE
Registry Path\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters\

Value NameEnablePlainTextPassword

Value TypeREG_DWORD
Value0x00000000 (0)

Check Content Reference

M

Target Key

5719