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Why Burp asks to activate license when starting by cmd.exe

ruby | Last updated: Sep 08, 2016 02:04AM UTC

Hi all, I met a problem with Burp. I developed a java extension to launch burp in cmd.exe. I wrote a .bat file and call it by Java Runtime. It asks me to activate the license again. If I open the .bat file directly, it won't ask for activation. But if I open the .bat file by Java Runtime object like this: Runtime runtime = Runtime.getRuntime(); runtime.exec("cmd /k start aaa.bat"); It will ask for activation. So I don't know what happened because Burp's behavior is not predictable. Please contact and help me if you have any idea. My email address is rubylou@foxmail.com

PortSwigger Agent | Last updated: Sep 08, 2016 07:51AM UTC

Burp's license activation is tied to the current user context. It's not completely clear what is going on, but if you start Burp in a different user context than usual, then you might not pick up the license activation. I would suggest looking at the user context in which your wrapper process is running, and ensuring that no impersonation or ID switching is happening.

Burp User | Last updated: Sep 13, 2016 03:06AM UTC

Hi @Dafydd Stuttard, Thank you for your reply. But what do you mean by current user context? I checked cmd.exe started as Administrator, as well as Burp. So could you please explain how to check the current user context? Thanks a lot!

PortSwigger Agent | Last updated: Sep 13, 2016 07:38AM UTC