The mobile operating system must disallow the device unlock password from containing an organizationally-defined minimum number of numeric characters.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-32998	SRG-OS-000071-MOS-000046	SV-43396r2_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 numeric 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 numeric 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	2013-04-12

Details

Check Text ( C-41295r2_chk )
Review the mobile operating system password complexity configuration settings to determine if the device unlock password requires an organizationally-defined minimum number of numeric characters. If password complexity configuration settings do not require the device unlock password to have an organizationally-defined minimum number of numeric characters, this is a finding.

Fix Text (F-36910r2_fix)
Configure the mobile operating system to disallow the device unlock password from containing less than an organizationally-defined minimum number of numeric characters.