Kerberos encryption types must be configured to prevent the use of DES and RC4 encryption suites.
An XCCDF Rule
Description
Certain encryption types are no longer considered secure. This setting configures a minimum encryption type for Kerberos, preventing the use of the DES and RC4 encryption suites.
- ID
- SV-253460r971535_rule
- Version
- WN11-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 >> "Network security: Configure encryption types allowed for Kerberos" to "Enabled" with only the following selected:
AES128_HMAC_SHA1
AES256_HMAC_SHA1
Future encryption types