A penetration tester obtains password dumps associated with the target and identifies strict lockout policies. The tester does not want to lock out accounts when attempting access. Which of the following techniques should the tester use?
To avoid locking out accounts while attempting access, the penetration tester should use credential stuffing.
Credential Stuffing:
Definition: An attack method where attackers use a list of known username and password pairs, typically obtained from previous data breaches, to gain unauthorized access to accounts.
Advantages: Unlike brute-force attacks, credential stuffing uses already known credentials, which reduces the number of attempts per account and minimizes the risk of triggering account lockout mechanisms.
Tool: Tools like Sentry MBA, Snipr, and others are commonly used for credential stuffing attacks.
Other Techniques:
MFA Fatigue: A social engineering tactic to exhaust users into accepting multi-factor authentication requests, not applicable for avoiding lockouts in this context.
Dictionary Attack: Similar to brute-force but uses a list of likely passwords; still risks lockout due to multiple attempts.
Brute-force Attack: Systematically attempts all possible password combinations, likely to trigger account lockouts due to high number of failed attempts.
Pentest References:
Password Attacks: Understanding different types of password attacks and their implications on account security.
Account Lockout Policies: Awareness of how lockout mechanisms work and strategies to avoid triggering them during penetration tests.
By using credential stuffing, the penetration tester can attempt to gain access using known credentials without triggering account lockout policies, ensuring a stealthier approach to password attacks.
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