Windows Server 2025 must be configured to at least negotiate signing for LDAP client signing.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-278226 | WN25-SO-000320 | SV-278226r1181384_rule | CCI-000366 | medium |
| Description | ||||
| This setting controls the signing requirements for LDAP clients. This must be set to "Negotiate signing" or "Require signing", depending on the environment and type of LDAP server in use. | ||||
| STIG | Date | |||
| Microsoft Windows Server 2025 Security Technical Implementation Guide | 2026-02-20 | |||
Details
Check Text (C-278226r1181384_chk)
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\LDAP\
Value Name: LDAPClientIntegrity
Value Type: REG_DWORD
Value: 0x00000001 (1)
Fix Text (F-82661r1181383_fix)
Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> Network security: LDAP client signing requirements to "Negotiate signing" at a minimum.