Gratipay · Report #190015
Certificate signed using SHA-1
Duplicatestatus
mediumseverity
3upvotes
29 Dec 2016disclosed
How it was found
Hello, I detected a certificate signed using SHA-1. SHA-1 is a hash algorithm used in digital signatures. It is currently considered deprecated due to the increasing feasibility in breaking it.
Impact: Certificates can be forged by capable adversaries. Forged certificates can be used in MITM attacks against connecting clients.
Solution: Renew certificates with SHA-256 signatures. This should be done before 2016.