Cyber Risks · PortSwigger Research

Credential stuffing with Burp Suite - Port Swigger

Summary: PortSwigger's guide describes credential stuffing as a brute-force attack that logs into a site using known username and password pairs collected from earlier data breaches, relying on users reusing credentials across sites. Because each account is tried only once, account locking is effectively powerless against it, though rate limiting may still need to be bypassed, and the walkthrough uses Burp Suite's payload positions for username and password to spot valid logins through anomalous error messages, response times, or status codes such as a 302.

What's compelling: Account lockout, the control most teams count on against password guessing, does nothing here because each account is tried exactly once - so the only remaining barrier is rate limiting, which the source treats as something an attacker can work around.

Read the original at PortSwigger Research ↗

Topics
Data Breaches
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