Rule ID
SV-79695r1_rule
Version
V1R1
CCIs
SP 800-52 provides guidance on using the most secure version and configuration of the TLS/SSL protocol. Using older unauthorized versions or incorrectly configuring protocol negotiation makes the gateway vulnerable to known and unknown attacks which exploit vulnerabilities in this protocol. This requirement applies to TLS gateways (also known as SSL gateways) and is not applicable to VPN devices. Application protocols such as HTTPS and DNSSEC use TLS as the underlying security protocol thus are in scope for this requirement. NIS SP 800-52 provides guidance. SP 800-52 sets TLS version 1.1 as a minimum version, thus all versions of SSL are not allowed (including for client negotiation) either on DoD-only or on public facing servers.
In the search field, enter "SSL Server Profile" >> Select "SSL Server Profile" from the results >> Click the name of the SSL Server Profile object to be inspected >> Confirm that the TLS 1.1 and TLS 1.2 protocol options are checked. If they are not checked, this is a finding.
The implementer will configure an "SSL Server Profile" to be used for SSL negotiation of a given service. In the search field, enter "SSL Server Profile" >> Select "SSL Server Profile" from the results >> Click "Add" >> Configure the SSL Server Profile, providing a logical object name and appropriate selection of settings (depending on what type of SSL connection is to be implemented - forward, reverse, mutual) >> Protocols to be enabled include TLS 1.1 and 1.2 (both are enabled by default).