Web Hack List

Collected research

Exploiting CORS Misconfigurations for Bitcoins and Bounties

Exploiting CORS misconfigurations for Bitcoins and bounties

Servers that reflect the Origin header into Access-Control-Allow-Origin while sending Allow-Credentials true let any website read a victim's authenticated cross-domain responses. The post covers sloppy origin matching, whitelisting the null origin that any sandboxed iframe can produce, and a missing Vary: Origin enabling client-side and server-side cache poisoning; the targets were bitcoin exchanges.

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Exploiting CORS misconfigurations for Bitcoins and bounties
Researcher
James Kettle
Published by
PortSwigger Research
Date
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This page is the archive's own catalogue record. The research is the work of James Kettle, first published at the original source. Preserved copies are kept so the citation survives its host; this one was last captured on .