Changes are coming to https://stigviewer.com.
Take our survey to help us understand your usage and how we can better serve you in the future.
Take Survey
Kerberos encryption types must be configured to prevent the use of DES and RC4 encryption suites.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-73685 | WN16-SO-000350 | SV-88349r1_rule | Medium |
| Description |
|---|
| Certain encryption types are no longer considered secure. The DES and RC4 encryption suites must not be used for Kerberos encryption. |
| STIG | Date |
|---|---|
| Windows Server 2016 Security Technical Implementation Guide | 2018-09-05 |
Details
| Check Text ( C-73767r1_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: \SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\Kerberos\Parameters\ Value Name: SupportedEncryptionTypes Value Type: REG_DWORD Value: 0x7ffffff8 (2147483640) |
| Fix Text (F-80135r1_fix) |
|---|
| Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Network security: Configure encryption types allowed for Kerberos" to "Enabled" with only the following selected: AES128_HMAC_SHA1 AES256_HMAC_SHA1 Future encryption types |