Title

The Unified Communications Session Manager must use TLS 1.2 or greater to protect the confidentiality of remote access. (Cat I impact)

Discussion

Using older unauthorized versions or incorrectly configuring protocol negotiation makes the gateway vulnerable to known and unknown attacks that exploit vulnerabilities in this protocol. This requirement applies to TLS gateways (also known as SSL gateways). Application protocols such as HTTPS, SFTP, and others use TLS as the underlying security protocol and thus are in scope for this requirement. NIST SP 800-52 provides guidance for client negotiation on either DOD-only or public-facing servers.

Check Content

Verify the Unified Communications Session Manager uses TLS 1.2 or greater to protect the confidentiality of remote access. If the Unified Communications Session Manager does not use TLS 1.2 or greater, this is a finding.

Fix Text

Configure the Unified Communications Session Manager to use TLS 1.2 or greater to protect the confidentiality of remote access.

Additional Identifiers

Rule ID: SRG-NET-000062-VVSM-00010_rule

Vulnerability ID: SRG-NET-000062-VVSM-00010

Group Title: SRG-NET-000062-VVSM-00010

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.