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Server-side request forgery
Code approves a DNS answer and then gives the original URL to an HTTP client that resolve…
from Server-side request forgery
Node 24
intermediate
1 min
Code approves a DNS answer and then gives the original URL to an HTTP client that resolves the name again. What remains wrong?
The checked address is not bound to the connection, so the second lookup may select a prohibited address
DNS names cannot be used with HTTPS certificates
A hostname becomes safe whenever its first answer is public
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