The mobile operating system must disallow the device unlock password from containing fewer than a specified minimum number of lower case alphabetic characters.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-32997	SRG-OS-000070-MOS-000045	SV-43395r1_rule		Medium

Description
Password complexity or strength refers to how difficult it is to determine a password using a dictionary or brute force attack. Setting minimum numbers of certain types of characters increases password complexity, and therefore makes it more difficult for an adversary to discover the password. In the DoD, the expectation is that the setting will range from a minimum of 1 to 2 lower case characters in the device unlock password. The parameter should be selected based on a risk assessment that weighs factors, such as the environments the device will be located and operational requirements for users to access data in a timely manner.

Description

Password complexity or strength refers to how difficult it is to determine a password using a dictionary or brute force attack. Setting minimum numbers of certain types of characters increases password complexity, and therefore makes it more difficult for an adversary to discover the password. In the DoD, the expectation is that the setting will range from a minimum of 1 to 2 lower case characters in the device unlock password. The parameter should be selected based on a risk assessment that weighs factors, such as the environments the device will be located and operational requirements for users to access data in a timely manner.

STIG	Date
Mobile Operating System Security Requirements Guide	2012-10-01

Details

Check Text ( C-41294r1_chk )
Review the mobile operating system password complexity configuration settings to determine if the device unlock password requires at least 1 lower case alphabetic character. If password complexity configuration settings do not require the device unlock password have at least 1 lower case alphabetic character, this is a finding.

Fix Text (F-36909r1_fix)
Configure the mobile operating system to disallow the device unlock password from containing fewer than a specified minimum number of lower case alphabetic characters.