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Is there a way to suppress ASP.NET_SessionId cookie tests?

Jon | Last updated: Aug 26, 2015 08:45PM UTC

The developers of our application say they don't manipulate the ASP.NET_SessionID cookie (in fact, they couldn't do it even if they wanted to). It is a Microsoft .NET cookie out of their control. A bunch of errors are being flagged in our App because Burp is monkeying with this cookie ... We want to suppress Burp from running the tests that are manipulating ASP.NET_SessionID cookie to stop these errors from being flagged. Is there a way to do this? Thanks in advance!

PortSwigger Agent | Last updated: Aug 27, 2015 08:28AM UTC

By default, Burp Scanner does not perform any server-side injection tests on the ASP.NET_SessionID cookie. This cookie is included in the default list at Scanner / Options / Attack insertion points / Skip server-side injection tests. You can also add this cookie to the list called "Skip all tests for these parameters", and Burp will not submit any requests that modify this cookie.

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