The Samsung KNOX for Android container must have the Account Blacklist configured.

From Samsung Android OS 6 (with KNOX 2.x) Security Technical Implementation Guide

Part of PP-MDF-991000

Associated with: CCI-000366

SV-84327r1_rule The Samsung KNOX for Android container must have the Account Blacklist configured.

Vulnerability discussion

Blacklisting all email accounts is required so only whitelisted accounts can be configured.SFR ID: FMT_SMF_EXT.1.1 #45

Check content

This validation procedure is performed on both the MDM Administration Console and the Samsung KNOX for Android device. Check whether the appropriate setting is configured on the MDM Administration Console: 1. Ask the MDM administrator to display the "Account blacklist" setting in the "Container Accounts" rule. 2. Verify the setting is configured to all email domains not approved by DoD. Note: All email domains are specified by the wildcard string ".*" On the Samsung KNOX for Android device: 1. Open the KNOX Container. 2. Open "Settings". 3. Select "Accounts". 4. Select "Add account". 5. Select "Email" (and repeat for Microsoft Exchange ActiveSync) and attempt to add an email account with a non-approved domain. 6. Verify the email account cannot be added. If the "Account blacklist" is not properly configured, or if the user is able to successfully configure the non-DoD-approved email account, this is a finding.

Fix text

Configure the mobile operating system to add email domains not approved by DoD to the account blacklist. On the MDM Administration Console, add all email domains not approved by DoD to the "Account blacklist" setting in the "Container Accounts" rule.

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