Wow I'm surprised, you're right, and it has happened before:
> the attacker issued and registered a free temporary 3-month certificate for the developers[.]kakao.com domain through SSL certificate issuer called ZeroSSL. Because the routing policy was already manipulated by the BGP Hijacking, the attacker was able to register the certificate.
It sounds like that one may have been the result of a "lawful intercept", so perhaps not necessarily BGP hijacking. If you have legitimate control of the ASN/network, it's not a hijack.
> the attacker issued and registered a free temporary 3-month certificate for the developers[.]kakao.com domain through SSL certificate issuer called ZeroSSL. Because the routing policy was already manipulated by the BGP Hijacking, the attacker was able to register the certificate.
https://medium.com/s2wblog/post-mortem-of-klayswap-incident-...