Overview
  1. 03.01: Access Control
  2. 03.02: Awareness and Training
  3. 03.03: Audit and Accountability
  4. 03.04: Configuration Management
  5. 03.05: Identification and Authentication
  6. 03.06: Incident Response
  7. 03.07: Maintenance
  8. 03.08: Media Protection
  9. 03.09: Personnel Security
  10. 03.10: Physical Protection
  11. 03.11: Risk Assessment
  12. 03.12: Security Assessment and Monitoring
  13. 03.13: System and Communications Protection
  14. 03.14: System and Information Integrity
  15. 03.15: Planning
  16. 03.16: System and Services Acquisition
  17. 03.17: Supply Chain Risk Management

Security Requirements for 03.01.08 Unsuccessful Logon Attempts

Due to the potential for denial of service, automatic system lockouts are in most cases, temporary and automatically release after a predetermined time period established by the organization (i.e., using a delay algorithm). Organizations may employ different delay algorithms for different system components based on the capabilities of the respective components. Responses to unsuccessful system logon attempts may be implemented at the system and application levels. Organization-defined actions that may be taken include prompting the user to answer a secret question in addition to the username and password, invoking a lockdown mode with limited user capabilities (instead of a full lockout), allowing users to only logon from specified Internet Protocol (IP) addresses, requiring a CAPTCHA to prevent automated attacks, or applying user profiles, such as location, time of day, IP address, device, or Media Access Control (MAC) address.

Evidence

  1. 03.01.08.a

    Enforce a limit of at most five (5) consecutive invalid logon attempts by a user during a period of five (5) minutes.

  1. 03.01.08.b

    Automatically [Selection (one or more): lock the account or node for an at least 15-minute time period; lock the account or node until released by an administrator and notify a system administrator] when the maximum number of unsuccessful attempts is exceeded.