password-never-expires: Password Expiry Setting Check

id: password-never-expires

info:
  name: Password Expiry Setting Check
  author: nukunga[SungHyunJeon]
  severity: medium
  description:
    Ensure the "Password never expires" setting is disabled for all active user accounts so that password expiration policies can be enforced effectively.
  impact: |
    Enabling the "Password never expires" setting overrides the maximum password age policy, preventing its enforcement and increasing the likelihood of credential compromise.
  remediation: |
    Disable the "Password never expires" setting using one of the following methods:
    - Command Line: > wmic useraccount where name="USERNAME" set passwordexpires=true
    - GUI: Use Local Security Policy to modify the user account settings accordingly.
  reference:
    - https://isms.kisa.or.kr/main/csap/notice/?boardId=bbs_0000000000000004&mode=view&cntId=85
  tags: code,windows-audit,kisa,account-management,password-policy

self-contained: true

code:
  - pre-condition: |
      IsWindows();

    engine:
      - powershell
      - powershell.exe

    args:
      - -ExecutionPolicy
      - Bypass

    pattern: "*.ps1"

    source: |
      # Check all local, active user accounts for the password expiry setting
      $users = Get-WmiObject -Class Win32_UserAccount -Filter "LocalAccount=True and Disabled=False"
      $vulnerable = $users | Where-Object { $_.PasswordExpires -eq $false }
      if ($vulnerable) {
          "PASSWORD_NEVER_EXPIRES_ENABLED"
      } else {
          "PASSWORD_NEVER_EXPIRES_DISABLED"
      }

    matchers:
      - type: word
        words:
          - "PASSWORD_NEVER_EXPIRES_ENABLED"
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