During an assessment, you discover login forms that do not lock user accounts and do not register repeated passcode failures. Which tactic would best determine whether any accounts can be accessed by making a large number of passcode guesses on each username?
Repeated submissions of potential passcodes to each login field to detect valid ones
Redirecting authenticated tokens through an interception proxy
Embedding malicious commands into the username field to bypass credentials
Capturing traffic over the network with a packet analyzer for session tokens
A systematic sequence of passcode attempts, often drawn from lists of common or guessed sequences, highlights weaknesses in login processes that lack account lockouts. This tactic identifies if any valid passcode exists among many attempts. Other approaches, like injecting malicious instructions into form fields or intercepting cookies in transit, might reveal different weaknesses but do not rely on systematically testing numerous passcode guesses.
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What is a brute-force attack and why is it effective in this scenario?
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What is an 'account lockout' feature and how does it defend against attacks?
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What is the difference between brute-forcing and other attack methods like injection or session hijacking?