Details
The cornerstone of the PKI is the private key used to encrypt or digitally sign information. If the private key is stolen, this will lead to the compromise of the authentication and non-repudiation gained through PKI because the attacker can use the private key to digitally sign documents and pretend to be the authorized user. Both the holders of a digital certificate and the issuing authority must protect the computers, storage devices, or whatever they use to keep the private keys.
SIG(0) is used for server-to-server authentication for DNS transactions, and it uses PKI-based authentication. So, in cases where SIG(0) is being used instead of TSIG (which uses a shared key, not PKI-based authentication), this requirement is applicable.
Solution
Access Windows Explorer.
Navigate to the following location:
%ALLUSERSPROFILE%MicrosoftCrypto
Modify permissions on the keys folder, sub-folders, and files to be limited to SYSTEM and Administrators FULL CONTROL and to all other Users/Groups to READ.
Supportive Information
The following resource is also helpful.
This security hardening control applies to the following category of controls within NIST 800-53: Identification and Authentication.This control applies to the following type of system Windows.
References
- 800-53|IA-5(2)(b)
- CAT|II
- CCI|CCI-000186
- Rule-ID|SV-215604r561297_rule
- STIG-ID|WDNS-IA-000006
- STIG-Legacy|SV-73071
- STIG-Legacy|V-58641
- Vuln-ID|V-215604