Posts Tagged “HTTPS”

Since the launch of Let’s Encrypt CA in late 2015, obtaining TLS certificates has become cheap, quick and easy. Statistics this month showed Let’s Encrypt has yet issued nearly 1.8 million certificates. But it seems like this information hasn’t arrived at some website owners and API developers.

So I wrote a little script to poison DNS requests and let a little node.js script exchange all pictures requested by the victim (I will perhaps blog about this script another time). Sites and apps using TLS are perfectly fine, because they will reject connections to the fake webserver without a valid certificate. Without transport security, things get mad.

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