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Extend Repeater to update another header file

Brandon | Last updated: May 07, 2017 04:25PM UTC

I have a web application that expects a header value that is a hash of the contents of the POST body and an HMAC. I'd like to extend the Repeater tab similarly to how the Content-Length is automatically updated when the body modified, but for another header. I'm not sure if this is something I can accomplish with the Burp extender API.

PortSwigger Agent | Last updated: May 08, 2017 10:05AM UTC