The UEM server must be configured to prohibit client negotiation to TLS 1.1, TLS 1.0, SSL 2.0, or SSL 3.0.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-234669	SRG-APP-000560-UEM-000394	SV-234669r617355_rule		Medium

Description
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 Transport Layer Security (TLS) gateways (also known as Secure Sockets Layer [SSL] gateways), web servers, and web applications. Application protocols such as HTTPS and DNSSEC use TLS as the underlying security protocol and thus are in scope for this requirement. NIST SP 800-52 provides guidance for client negotiation, either on DoD-only or on public-facing servers. Satisfies:FCS_TLSC_EXT.1.1 Reference:PP-MDM-412061

Description

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 Transport Layer Security (TLS) gateways (also known as Secure Sockets Layer [SSL] gateways), web servers, and web applications. Application protocols such as HTTPS and DNSSEC use TLS as the underlying security protocol and thus are in scope for this requirement. NIST SP 800-52 provides guidance for client negotiation, either on DoD-only or on public-facing servers. Satisfies:FCS_TLSC_EXT.1.1 Reference:PP-MDM-412061

STIG	Date
Unified Endpoint Management Server Security Requirements Guide	2020-12-14

Details

Check Text ( C-37854r615641_chk )
Verify the UEM server is configured to prohibit client negotiation to TLS 1.1, TLS 1.0, SSL 2.0, or SSL 3.0. If the UEM server is not configured to prohibit client negotiation to TLS 1.1, TLS 1.0, SSL 2.0, or SSL 3.0, this is a finding.

Fix Text (F-37819r615642_fix)
Configure the UEM server to prohibit client negotiation to TLS 1.1, TLS 1.0, SSL 2.0, or SSL 3.0.