value: Adversaries may attempt to access detailed information about the password policy used within an enterprise network or cloud environment. Password policies are a way to enforce complex passwords that are difficult to guess or crack through [Brute Force](T1110). This information may help the adversary to create a list of common passwords and launch dictionary and/or brute force attacks which adheres to the policy (e.g. if the minimum password length should be 8, then not trying passwords such as 'pass123'; not checking for more than 3-4 passwords per account if the lockout is set to 6 as to not lock out accounts).
  
  Password policies can be set and discovered on Windows, Linux, and macOS systems via various command shell utilities such as `net accounts (/domain)`, `Get-ADDefaultDomainPasswordPolicy`, `chage -l <username>`, `cat /etc/pam.d/common-password`, and `pwpolicy getaccountpolicies` (Citation: Superuser Linux Password Policies) (Citation: Jamf User Password Policies).
  
  Password policies can be discovered in cloud environments using available APIs such as `GetAccountPasswordPolicy` in AWS (Citation: AWS GetPasswordPolicy).
name: Password Policy Discovery