If multifactor authentication is not available and passwords must be used, the Palo Alto Networks security platform must require that when a password is changed, the characters are changed in at least 8 of the positions within the password.

From Palo Alto Networks NDM Security Technical Implementation Guide

Part of SRG-APP-000170-NDM-000329

Associated with: CCI-000195

SV-77225r1_rule If multifactor authentication is not available and passwords must be used, the Palo Alto Networks security platform must require that when a password is changed, the characters are changed in at least 8 of the positions within the password.

Vulnerability discussion

If the application allows the user to consecutively reuse extensive portions of passwords, this increases the chances of password compromise by increasing the window of opportunity for attempts at guessing and brute-force attacks.The number of changed characters refers to the number of changes required with respect to the total number of positions in the current password. In other words, characters may be the same within the two passwords; however, the positions of the like characters must be different.

Check content

Go to Device >> Setup >> Management View the "Minimum Password Complexity" window. If the "New Password Differs by Characters" field is not "8", this is a finding.

Fix text

Go to Device >> Setup >> Management In the "Minimum Password Complexity" window, select the "Edit" icon (the gear symbol in the upper-right corner of the pane). In the "New Password Differs by Characters" field, enter "8". Check the "Enabled box", then select "OK". Commit changes by selecting "Commit" in the upper-right corner of the screen. Select "OK" when the confirmation dialog appears.

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