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NTLM Authentication Interception in Burp Suite

ashish | Last updated: Aug 27, 2024 10:06AM UTC

We are experiencing an issue while attempting to intercept requests for an application that utilizes NTLM authentication. Despite following all the steps outlined in this post : https://forum.portswigger.net/thread/unable-to-intercept-traffic-of-web-application-54cf0046, We continue to receive a 401 Unauthorized error and am unable to capture the responses. Has anyone else encountered this issue or have any suggestions on how to resolve it? Any guidance would be greatly appreciated.

Michelle, PortSwigger Agent | Last updated: Aug 27, 2024 11:57AM UTC

Hi I've just replied to an email from one of your colleagues. It would be good to see what details you have configured under Settings > Network > Connections > Platform Authentication and also see a screenshot of the requests and response as displayed in the Proxy history, to help us look into this further for you.

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