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The Windows SMB client must be configured to always perform SMB packet signing.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-6832 | WN12-SO-000028 | SV-52935r2_rule | ECSC-1 | Medium |
| 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. |
| STIG | Date |
|---|---|
| Windows Server 2012 / 2012 R2 Member Server Security Technical Implementation Guide | 2015-06-26 |
Details
| Check Text ( None ) |
|---|
| None |
| Fix Text (F-45861r1_fix) |
|---|
| Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Microsoft network client: Digitally sign communications (always)" to "Enabled". |