The LG Android 5.0 platform must be configured to enable data-at-rest protection for removable storage media.

From LG Android 5.x Interim Security Configuration Guide

Part of PP-MDF-001009

Associated with: CCI-000366 CCI-001199

SV-73215r1_rule The LG Android 5.0 platform must be configured to enable data-at-rest protection for removable storage media.

Vulnerability discussion

The operating system must ensure the data being written to the mobile device's removable media is protected from unauthorized access. If data at rest is unencrypted, it is vulnerable to disclosure. Even if the operating system enforces permissions on data access, an adversary can read removable media directly, thereby circumventing operating system controls. Encrypting the data ensures confidentiality is protected even when the operating system is not running.SFR ID: FMT_SMF.1.1 #22

Check content

This validation procedure is performed on both the MDM Administration Console and the LG Android device. Check whether the appropriate setting is configured on the MDM Administration Console: 1. Ask the MDM administrator to display the "Encryption" setting in the MDM console. 2. Verify "Storage Card Encryption" is enabled. On the LG Android device: 1. Unlock the device 2. Navigate to: Settings >> Security >> Encrypt SD card storage 3. Verify "Encrypt SD card storage" is enabled and cannot be disabled. If the "Storage Card Encryption" is not enabled, or if the user is able to disable the setting on the device, this is a finding.

Fix text

Configure the mobile device to enable data-at-rest protection for removable media. On the MDM Administration Console, enable "Storage Card Encryption" for removable media.

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