OAT-008 Credential Stuffing

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This is an automated threat. To view all automated threats, please see the Automated Threat Category page. The OWASP Automated Threat Handbook - Wed Applications (pdf, print), an output of the OWASP Automated Threats to Web Applications Project, provides a fuller guide to each threat, detection methods and countermeasures. The threat identification chart helps to correctly identify the automated threat.

Definition

OWASP Automated Threat (OAT) Identity Number

OAT-008

Threat Event Name

Credential Stuffing

Summary Defining Characteristics

Mass log in attempts used to verify the validity of stolen username/password pairs.

Indicative Diagram

Description

Lists of authentication credentials stolen from elsewhere are tested against the application’s authentication mechanisms to identify whether users have re-used the same login credentials. The stolen usernames (often email addresses) and password pairs could have been sourced directly from another application by the attacker, purchased in a criminal marketplace, or obtained from publicly available breach data dumps.

Unlike OAT-007 Credential Cracking, Credential Stuffing does not involve any brute-forcing or guessing of values; instead credentials used in other applications are being tested for validity.

Other Names and Examples

Account checker attack; Account checking; Account takeover; Account takeover attack; Login Stuffing; Password list attack; Password re-use; Stolen credentials; Use of stolen credentials

See Also

Cross-References

CAPEC Category / Attack Pattern IDs

  • 210 Abuse of Functionality

CWE Base / Class / Variant IDS

  • 799 Improper Control of Interaction Frequency
  • 837 Improper Enforcement of a Single, Unique Action

WASC Threat IDS

  • 21 Insufficient Anti-Automation
  • 42 Abuse of Functionality

OWASP Attack Category / Attack IDs