The setting Microsoft network client: Digitally sign communications (always) must be configured to Enabled.
An XCCDF Rule
Description
The server message block (SMB) protocol provides the basis for many network operations. Digitally signed SMB packets aid in preventing man-in-the-middle attacks. If this policy is enabled, the SMB client will only communicate with an SMB server that performs SMB packet signing. Satisfies: SRG-OS-000423-GPOS-00187, SRG-OS-000424-GPOS-00188
- ID
- SV-225039r958908_rule
- Version
- WN16-SO-000190
- Severity
- Medium
- References
- Updated
Remediation Templates
A Manual Procedure
Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Microsoft network client: Digitally sign communications (always)" to "Enabled".