If the MDM server includes a mobile email management capability, the email client must give the user the option to deny acceptance of a certificate if the mobile email client determines the CRL of the certificate is unverified.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-36216	SRG-APP-175-MDM-199-MEM	SV-47620r1_rule		Medium

Description
If the user is aware that a certificate is invalid, the user can opt not to proceed or, alternatively, is better prepared to identify suspicious behavior that indicates an IA incident is in progress. Failure to notify the user of this occurrence makes it more likely that an adversary can launch an attack from an untrusted system.

STIG	Date
Mobile Device Manager Security Requirements Guide	2013-01-24

Details

Check Text ( C-44456r1_chk )
Determine if the MDM server includes a mobile email management capability. If no, this requirement is not applicable. If yes, perform the following procedure: Verify the mobile email client gives the user the option to deny acceptance of a certificate if the mobile email client determines the CRL of the certificate is unverified. Talk to the site system administrator and have them confirm this capability exists in the MDM server. Also, review the MDM server configuration. If the mobile email client does not give the user the option to deny acceptance of a certificate if the mobile email client determines the CRL of the certificate is unverified, this is a finding.

Check Text ( C-44456r1_chk )

Determine if the MDM server includes a mobile email management capability. If no, this requirement is not applicable. If yes, perform the following procedure: Verify the mobile email client gives the user the option to deny acceptance of a certificate if the mobile email client determines the CRL of the certificate is unverified. Talk to the site system administrator and have them confirm this capability exists in the MDM server. Also, review the MDM server configuration. If the mobile email client does not give the user the option to deny acceptance of a certificate if the mobile email client determines the CRL of the certificate is unverified, this is a finding.

Fix Text (F-40746r1_fix)
Configure the MDM server to give the user the option to deny acceptance of a certificate if the mobile email client determines the CRL of the certificate is unverified.