Subdomain takeover no longer possible with CloudFront?

I found an unclaimed CloudFront instance on a subdomain I was testing. However when I went to create a new CloudFront distribution with the URL as the CNAME it didn't work. It showed an error explaining how you need to upload a trusted cert from a CA. The cert can't be self-signed.

So is it now impossible to perform this exploit? Or am I just missing something here…

https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/CNAMEs.html#alternate-domain-names-requirements

Touch here for the full post on Network Security Noblemen tumblr

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s