STIGUI
V-253439CAT II — Medium severitySV-253439r958908_rule

Outgoing secure channel traffic must be encrypted.

Rule version WN11-SO-000040 · STIG v2 · 2026-09-01

Discussion

Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but not all information is encrypted. If this policy is enabled, outgoing secure channel traffic will be encrypted.

Check

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: SealSecureChannel

Value Type: REG_DWORD Value: 1

Fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Domain member: Digitally encrypt secure channel data (when possible)" to "Enabled".

Identifiers

Group ID
V-253439
Group title
SRG-OS-000423-GPOS-00187
Rule ID
SV-253439r958908_rule
Check ID
C-56892r829399_chk
Fix ID
F-56842r829400_fix