18/09/2023
Surf - Escalate Your SSRF Vulnerabilities On Modern Cloud Environments - https://esystematics.com/blog/?p=3672&utm_source=SocialAutoPoster&utm_medium=Social&utm_campaign=Facebook
Esystematics Blog
surf allows you to filter a list of hosts, returning a list of viable SSRF candidates. It does this by sending a HTTP request from your machine to each host, collecting all the hosts that did not respond, and then filtering them into a list of externally facing and internally facing hosts. You can then attempt these hosts wherever an SSRF vulnerability may be present. Due to most SSRF filters only focusing on internal or restricted IP ranges, you'll be pleasantly surprised when you get SSRF on an external IP that is not accessible via HTTP(s) from your machine. Often you will find that large companies with cloud environments will have external IPs for internal web apps. Traditional SSRF filters will not capture this unless these hosts are specifically added to a blacklist (which they
surf allows you to filter a list of hosts, returning a list of viable SSRF candidates. It does this by sending a HTTP request from your machine to each host, collecting all the hosts that did not respond, and then filtering them into a list of externally facing and internally facing hosts. You can t...