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Timeout in communication with remote server

117AJ | Last updated: Aug 22, 2022 08:25PM UTC

Hello, I'm trying to run an active burp scan with Postman. I'm running a set of REST API end points to test them via burp for any web security vulnerabilities. Weirdly enough, some of the GET requests are working perfectly fine as they show up in the HTTP History tab perfectly fine where as there are quite a lot of GET requests that show the following error "Timeout in communication with remote server". All the requests are configured within the same environment, hence no differences there. And everytime the same requests seem to time out via burp. Things I have tried: 1. Establish an authenticated proxy setting with postman. 2. Disabled the "Set Connection Header on incoming requests when using HTTP/1" under Proxy->Options->Miscellaneous Please help me figure out a solution to this, any other fixes that I may be missing out on. Thanks

117AJ | Last updated: Aug 22, 2022 08:27PM UTC

Update: Using Burp Pro v2022.7.1

Liam, PortSwigger Agent | Last updated: Aug 23, 2022 07:54AM UTC

Hi Sur, what process are you following to set up and run the Active Scan with Postman?

117AJ | Last updated: Sep 30, 2022 02:32PM UTC

Hi Liam, I still have the issue going on. To answer your question here's what I'm following: 1. +New Live Task -> LiveAudit -> Proxy -> Everything -> Ignore Duplicates 2. Custom Scan config with Audit Speed Thorough 3. To connect to postman, I set proxy options to the Specific address of the Remote System containing the Burp Pro at port 8080 4. In the postman end, I'm setting custom proxy settings again to this remote desktop thereby establishing connection

Liam, PortSwigger Agent | Last updated: Oct 03, 2022 09:15AM UTC

Have you checked out this blog post? - https://www.secureideas.com/blog/2019/03/better-api-penetration-testing-with-postman-part-2.html

117AJ | Last updated: Oct 03, 2022 03:23PM UTC

Hi again, I did use the same blog post to get started initially. I'm running a collection of endpoints from postman. The connection is established without any issues and the collection runs through until a point where the requests begin to time out and the error says "Timeout in transmission from remote server". Could that be because the burp server is overloading the application with additional requests? If yes, is there a way to fix that? Or do you think it could be another issue?

Liam, PortSwigger Agent | Last updated: Oct 04, 2022 06:20AM UTC