Title

LG Android 6.x must not allow passwords that include more than two repeating or sequential characters. (Cat III impact)

Discussion

Password strength is a measure of the effectiveness of a password in resisting guessing and brute force attacks. Passwords that contain repeating or sequential characters are significantly easier to guess than those that do not contain repeating or sequential characters. Therefore, disallowing repeating or sequential characters increases password strength and decreases risk. SFR ID: FMT_SMF_EXT.1.1 #01b

Check Content

This validation procedure is performed on both the MDM Administration Console and the LG Android device. On the MDM console, do the following: 1. Ask the MDM administrator to display the "Max Repeating Characters" and "Max Sequential Numbers" settings in the Android Password Policy. 2. Verify the value of the setting is two or less. 3. Verify the policy has been assigned to all groups. On the LG Android device: 1. Unlock the device. 2. Navigate to the password entry screen: Settings >> General >> Security (or Fingerprints & security) >> Lock screen >> Select screen lock >> Password >> Set password. 3. Attempt to enter a password that contains repeating characters or sequential numbers of more than two. 4. Verify the password is not accepted. If on the MDM console the configured values of the "Max Repeating Character" and "Max Sequential Number" settings are greater than two or the LG Android device accepts a password that contains more than two repeating characters or sequential numbers, this is a finding.

Fix Text

Configure the mobile operating system to prevent passwords from containing more than two repeating or sequential characters. On the MDM Administration Console, set the "Max Repeating Characters" and "Max Sequential Numbers" values to 2 or less.

Additional Identifiers

Rule ID: SV-81301r2_rule

Vulnerability ID: V-66811

Group Title:

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.