When the UEM server cannot establish a connection to determine the validity of a certificate, the server must be configured not to have the option to accept the certificate.

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When the UEM server cannot establish a connection to determine the validity of a certificate, the server must be configured not to have the option to accept the certificate.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-234379	SRG-APP-000175-UEM-000106	SV-234379r879612_rule		Medium

Description
When an UEM server accepts an unverified certificate, it may be trusting a malicious actor. For example, messages signed with an invalid certificate may contain links to malware, which could lead to the installation or distribution of that malware on DoD information systems, leading to compromise of DoD sensitive information and other attacks. Satisfies:FIA_X509_EXT.2.2 Reference:PP-MDM-412003

STIG	Date
Unified Endpoint Management Server Security Requirements Guide	2023-02-13

Details

Check Text ( C-37564r614147_chk )
Verify the UEM server does not automatically accept a certificate when it cannot establish a connection to determine the validity of a certificate. If the UEM server automatically accepts a certificate when it cannot establish a connection to determine the validity of a certificate, this is a finding.

Fix Text (F-37529r614148_fix)
Configure the UEM server to not automatically accept a certificate when it cannot establish a connection to determine the validity of a certificate.