![]() ![]() This means I cannot just grab the Avast private key from my own computer and use it to attack someone else who has Avast installed. So clearly, they are different certificates. This is what the Avast certificate on my desktop looks like:Īnd here is the Avast certificate on my laptop: Avast does not do this it dynamically generates a unique certificate and private key for every install. My understanding is that Superfish installs the exact same certificate and private key into every computer, so once you obtain the hard-coded private key you can use it to man-in-the-middle anyone who has superfish installed. ![]() Correct?Ģ) Can anyone confirm whether or not these keys are individually generated for each installation? So it can be obtained by reverse engineering the sotware. If I understand correctly, in order for these programs to play MITM, they need to have access to the private key associated with the installed cert authority. ![]() if an attacker has these keys they can issue certificates that will be trusted by the local computer.ġ). This potentially opens up similar security issues to what was found with the Superfish software. However, the puprose of these keys is presumably quite similar to superfish - interception of secure web content by dynamically creating signed SSL certificates for remote sites. There's keys which appear to have been installed by Avast anti-virus and Skype, both of which are expected to be on the machine. ![]() However I found some others that appear to be similar in function if not purpose. I checked it over and wasn't surprised that the Superfish / Komodia Root CA certificate was not present. My Girlfriend has a years-old laptop from lenovo. ![]()
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