Title

Google Android 10 must be configured to not allow passwords that include more than two repeating or sequential characters. (Cat II 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. The numeric (complex) setting allows the use of a numeric only keyboard for passwords plus enforces the repeating or sequential characters limitation. SFR ID: FMT_SMF_EXT.1.1 #1b

Check Content

Review Google Android device configuration settings to determine if the mobile device is prohibiting passwords with more than two repeating or sequential characters. This validation procedure is performed on both the MDM Administration Console and the Android 10 device. On the MDM console, do the following: On the MDM console: 1. Open password requirements. 2. Open device password section. 3. Ensure the password quality is set to "Numeric (Complex)". On the Android 10 device, do the following: 1. Open Settings >> Security >> Screen lock. 2. Enter current password. 3. Tap "Password". 4. Verify Password complexity requirements are listed: Ascending, descending, or repeated sequence of digits is not allowed. If the MDM console device policy is set to a password with more than two repeating or sequential characters or on the Android 10 device, the device policy is set to a password with more than two repeating or sequential characters, this is a finding. Note: Alphabetic, Alphanumeric, and Complex are also acceptable selections but these selections will cause the user to select a complex password, which is not required by the STIG.

Fix Text

Configure the Google Android device to prevent passwords from containing more than two repeating or sequential characters. On the MDM console: 1. Open password requirements. 2. Open device password section. 3. Set password quality to "Numeric (Complex)". Note: Alphabetic, Alphanumeric, and Complex are also acceptable selections but these selections will cause the user to select a complex password, which is not required by the STIG.

Additional Identifiers

Rule ID: SV-237001r639149_rule

Vulnerability ID: V-237001

Group Title: PP-MDF-301020

Expert Comments

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