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High CPU Utilization

Nathan | Last updated: May 23, 2019 04:17PM UTC

I am seeing an extremely high usage on my CPU in burpsuite. I am also seeing the RAM consumption go up to 16-17GB in a session. I am in the middle of a test of an API for a client. I can kill burp and then reload it. Then it is okay for about 15-20 minutes before returning to high usage. Let me know what you need to determine what might be causing this issue.

Burp User | Last updated: May 23, 2019 04:17PM UTC

I forgot to mention that I am using version 2.0.21beta Extensions in Use: Error Message Checks NGINX Alias Traversal Scan Check Builder Refelcted Parameters JSON Beautifier JSON Web Tokens Freddy, Deserialization Bug Finder Active Scan++ Autorize Param Miner Backslash Powered Scanner

Burp User | Last updated: May 23, 2019 07:53PM UTC

**Update** I have noticed that if I disable the the default live passive crawl and live audit, then I am not seeing the same issues with high CPU and RAM usage.

Liam, PortSwigger Agent | Last updated: May 24, 2019 02:26PM UTC

Nate, do you have performance feedback enabled (User options > Misc > Performance feedback)? If so, could you provide us with your diagnostics (Help > Diagnostics)?

Burp User | Last updated: May 29, 2019 01:56PM UTC

I updated to the latest version and still seeing the same issue, even when using intruder.

Burp User | Last updated: May 30, 2019 03:02PM UTC

Yes, I do have it enabled and will send an email with the diagnostics.

Liam, PortSwigger Agent | Last updated: May 30, 2019 03:22PM UTC

Thanks Nate. We'll investigate and let you know when we've made some progress.

Rose, PortSwigger Agent | Last updated: Jun 27, 2019 08:54AM UTC

Nate, could you check whether you are still experiencing issues with the latest version of Burp (2.0.25beta)? It would also be really useful for us if you could disable all your Extensions when you're trying this.

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