The AAA Service must be configured to enforce authorized access to the corresponding private key for PKI-based authentication.

From Authentication Authorization and Accounting Service Security Requirements Guide

Associated with: CCI-000186

SRG-APP-000176-AAA-000059_rule The AAA Service must be configured to enforce authorized access to the corresponding private key for PKI-based authentication.

Vulnerability discussion

If the private key is discovered, an attacker can use the key to authenticate as an authorized user and gain access to the network infrastructure.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.

Check content

Verify the AAA Service is configured to enforce authorized access to the corresponding private key for PKI-based authentication. If the AAA Service is not configured to enforce authorized access to the corresponding private key, this is a finding.

Fix text

Configure the AAA Service to enforce authorized access to the corresponding private key for PKI-based authentication.

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