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Windows Phone 8.1 must be configured to enforce a minimum password length of 6 characters.


Overview

Finding ID Version Rule ID IA Controls Severity
V-58943 MSWP-81-100810 SV-73373r1_rule Low
Description
Password strength is a measure of the effectiveness of a password in resisting guessing and brute-force attacks. The ability to crack a password is a function of how many attempts an adversary is permitted, how quickly an adversary can do each attempt, and the size of the password space. The longer the minimum length of the password is, the larger the password space. Having a too-short minimum password length significantly reduces password strength, increasing the chance of password compromise and resulting device and data compromise. SFR ID: FMT_SMF.1.1 #01
STIG Date
Microsoft Windows Phone 8.1 Security Technical Implementation Guide 2015-03-26

Details

Check Text ( C-59773r2_chk )
This validation procedure is performed on both the MDM administration console and the Windows Phone mobile device.

On the MDM administration console:
1. Ask the MDM administrator to display the device password settings.
2. Verify that a password required setting is in effect.
3. Verify the minimum length for the password is set to 6 or greater.

On the Windows Phone mobile device:
1. Attempt to change the password to a 5-digit password.
2. Verify Windows Phone rejects the new password.

If the password policy on the MDM is not set to require a password with a minimum length of at least 6, or a device accepts a passcode of less than 6 characters, this is a finding.
Fix Text (F-64337r1_fix)
Configure the MDM system to enforce a password required as well as a minimum length password of 6 characters for device unlock.

Deploy the policy on managed devices.