Cyber Risks · PortSwigger Research

Example insertion point check - Port Swigger

Summary: PortSwigger published a BCheck example that runs once for each insertion point found during a crawl, appending a simple mathematical calculation to a request payload. If the response returns the answer to that calculation, Burp Scanner reports an issue with tentative confidence, after first confirming the answer does not already appear in the base response to reduce false positives.

Key Takeaway: The check flags possible server-side code injection on nothing more than a returned arithmetic result, so a tentative-confidence finding here is a prompt to verify, not a confirmed vulnerability.

Read the original at PortSwigger Research ↗

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Supply Chain & AppSec
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