The site-to-site VPN, when using PKI-based authentication for devices, must enforce authorized access to the corresponding private key.
Overview
Finding ID
Version
Rule ID
IA Controls
Severity
V-207215
SRG-NET-000165-VPN-000570
SV-207215r608988_rule
Medium
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 non-repudiation gained through PKI because the attacker can use the private key to authenticate to network devices.