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For PKI-based authentication, AlmaLinux OS 9 must enforce authorized access to the corresponding private key.

An XCCDF Rule

Description

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 nonrepudiation 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.

ID
SV-269410r1050293_rule
Version
ALMA-09-038850
Severity
Medium
References
Updated

Remediation Templates

A Manual Procedure

Create a new private and public key pair that uses a passcode, as the correct user, with the following command:

$ ssh-keygen -n [passphrase]