Cyber Risks · PortSwigger Research

Lab: Weak isolation on dual-use endpoint

Summary: PortSwigger's lab presents a web application that assumes a user's privilege level based on their input, letting an attacker exploit the logic of its account management features to reach arbitrary users' accounts. The stated goal is to access the administrator account and delete the user carlos, starting from the provided credentials wiener:peter.

Key Takeaway: The flaw is a trust decision made on input the user controls, and the lab's payoff is deleting another account entirely - the kind of logic error that no signature-based scanner rule catches on its own.

Read the original at PortSwigger Research ↗

Topics
Vulnerabilities & Patching
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