Cyber Risks · PortSwigger Research

Sample Burp Suite extension: Intruder payloads

Summary: PortSwigger published a sample Burp Suite extension that registers as an Intruder payload provider and a payload processor, generating two payloads: one to identify basic XSS and one to trigger a fictitious vulnerability from a previous custom scanner check example. The download includes source code, a compiled JAR for Java, and an ASP.NET test page that adds fictitious bugs so users can confirm the payloads trigger both vulnerabilities.

What you should know: The extension passes the base value of the payload position to the provider, letting Intruder manipulate input deep inside serialized data structures and re-serialize it into a valid request - so payloads reach parameters that sit behind a serialization layer rather than at the surface.

Read the original at PortSwigger Research ↗

Topics
Vulnerabilities & Patching
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