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Disabilitazione SMBv1 ed abilitazione Digital Signing

Gianni Ricca Windows 22 June 2022

Per proteggere la rete da vulnerabilità come i ransomware si rende necessario disabilitare SMBv1 ed attivare il Digital Signing delle comunicazioni.
Anche InsightVM segnala queste vulnerabilità.


Digital Signing

Disabilitare SMBv1
Mediante le GPO editare
Computer configuraton – Preferences – Windows Settings – Registry
e creare tre chiavi di registro
Registry – New – Registry Item

Disabilitare SMBv1 server
Action: Create
Key Path: SYSTEMCurrentControlSetServicesLanmanServerParameters
Value name: SMB1
Value type: REG_DWORD
Value data: 0
New Registry Properties – General

Disabilitare SMBv1 client
Action: Update
Key Path: SYSTEMCurrentControlSetservicesmrxsmb10
Value name: Start
Value type: REG_DWORD
Value data: 4
Start Properties – General

Rimuovere le dipendenze dal servizio MRxSMB10 appena disabilitato
Action: Replace
Key Path: SYSTEMCurrentControlSetServicesLanmanWorkstation
Value name: DependOnService
Value type: REG_MULTI_SZ
Value data:
DependOnService Properties

Abilitare la Digital Signing delle comunicazioni
Mediante le GPO editare
Computer configuraton – Policies – Windows Settings – Security Settings – Local Policies – Security Options
Abilitare "Microsoft network server: Digitally sign communication (always)"

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