The LG Android 5.0 platform must not allow the device unlock password to contain more than two sequential characters (e.g., 456, abc).

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-58795	LGA5-20-000101	SV-73225r1_rule		Medium

Description
Password complexity or strength refers to how difficult it is to determine a password using a dictionary or brute-force attack. Passwords with sequential or repeating numbers or alphabetic characters (e.g., 456, 987, 222, abc, ddd) are considered easier to crack than random patterns. Therefore, disallowing sequential or repeating numbers or alphabetic characters makes it more difficult for an adversary to discover the password. SFR ID: FMT_SMF_EXT.1

Description

Password complexity or strength refers to how difficult it is to determine a password using a dictionary or brute-force attack. Passwords with sequential or repeating numbers or alphabetic characters (e.g., 456, 987, 222, abc, ddd) are considered easier to crack than random patterns. Therefore, disallowing sequential or repeating numbers or alphabetic characters makes it more difficult for an adversary to discover the password. SFR ID: FMT_SMF_EXT.1

STIG	Date
LG Android 5.x Interim Security Configuration Guide	2015-09-22

Details

Check Text ( C-59639r3_chk )
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 "Max Sequential Characters" in the MDM console. 2. Verify the setting is the same or less than the required length. On The LG Android 5.0 platform device: 1. Unlock the device 2. Navigate to the password entry screen: Settings >> Lockscreen >> Select screen lock >> Password 3. Attempt to enter a password with more than two sequential characters (letters or numbers). Determine if the new password is allowed. If the configured values of the “Max Sequential Character” setting are greater than the required length, or if device accepts a password that contains sequential characters of length greater than the required length, this is a finding.

Check Text ( C-59639r3_chk )

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 "Max Sequential Characters" in the MDM console.
2. Verify the setting is the same or less than the required length.

On The LG Android 5.0 platform device:
1. Unlock the device
2. Navigate to the password entry screen: Settings >> Lockscreen >> Select screen lock >> Password
3. Attempt to enter a password with more than two sequential characters (letters or numbers). Determine if the new password is allowed.

If the configured values of the “Max Sequential Character” setting are greater than the required length, or if device accepts a password that contains sequential characters of length greater than the required length, this is a finding.

Fix Text (F-64179r1_fix)
Configure the mobile device to enforce a sequential password length of no more than 2 characters. On the MDM Administration Console, set the "Max Sequential Characters" value to 2.