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BurpSuite Collaborator Doesn't Work

Zezul | Last updated: Dec 24, 2021 03:29PM UTC

I cannot connect to any BurpSuite Collaborator domains, and I use the default Collaborator server. When running a health check, the "Polling Server Connection" returns an error. The error message says that "No connections to the polling server at polling.burpcollaborator.net could be opened". I also cannot access any Collaborator domain using my browser. I'd really appreciate any help!

Zezul | Last updated: Dec 24, 2021 03:47PM UTC

After using Java 14, the domain can be accessed, however I don't receive any polling response. When a person accesses my domain, Collaborator does not show anything. How can this be fixed?

Uthman, PortSwigger Agent | Last updated: Dec 24, 2021 04:54PM UTC

Hi Segev,

I just ran a health check on the default collaborator and it works as expected - no errors.

Can you confirm whether or not you are still having an issue? Can you also email support@portswigger.net with the information below?

The output of the collaborator health check (Project options > Misc > Burp Collaborator Server > Run health check ...). It should look something like this: 

Initiating health check 

Server address resolution                    Success
Server HTTP connection	                     Success
Server HTTPS connection (trust enforced)     Success
Server HTTPS connection (trust not enforced) Success
Server SMTP connection on port 25	     Success
Server SMTP connection on port 587	     Success
Server SMTPS connection (trust enforced)     Success
Server SMTPS connection (trust not enforced) Success
Polling server address resolution	     Success
Polling server connection	             Success
Verify DNS interaction	                     Success
Verify HTTP interaction	                     Success
Verify HTTPS interaction	             Success
Verify SMTP interaction	                     Success
Verify SMTPS interaction	             Success
Server version	                             Success

All tests were successful

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