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Unable to connect browsers to Burp

Test | Last updated: May 15, 2022 02:23PM UTC

Hi. I have Windows 10 machine and I am trying to intercept requests from Firefox and Chrome using Burp Suite Community Edition. I checked in the Burp that Proxy is running on 127.0.0.1 using port 8080. I installed the certificate provided by Burp. I first tried using Firefox. I changed the proxy settings as per the recommendation. I also tried using FoxyProxy extension. But I am unable to view any web page from the browser. I am getting the error: "Visiting an untrustworthy website has been prevented". It shows following reason: "This certificate or the certificate chain is built on an untrusted root center.". Note: I am running Kaspersky Total Security on my machine. The error page in browser has Kaspersky logo. I have already tried pausing the Kaspersky protection. I have tried deleting and re-importing certificate by the Burp. I also tried to use the same proxy setting in the Kaspersky settings, as Firefox recommendation. Nothing has worked so far. Please help. Because of this I was not able to do much. Thank you.

Ben, PortSwigger Agent | Last updated: May 16, 2022 11:14AM UTC

Hi, This does sound like a Kaspersky issue (I assume Kaspersky is scanning your HTTPS traffic) - when you mention that you have paused the protection has this disabled the encrypted scanning component (the following link provides some information on how to do this - https://support.kaspersky.com/common/safemoney/12489#block3)? The other suggestion would be to install the certificate to the trust store so that Kaspersky picks this up (there is some information on this in the following link - https://sqa.stackexchange.com/questions/44624/how-to-bypass-antivirus-certificate-warning-in-test-automation).

Test | Last updated: May 21, 2022 12:06PM UTC