Public Key Mismatch Vulnerability in Go Crypto TLS Package
CVE-2021-34558
6.5MEDIUM
Key Information:
Badges
👾 Exploit Exists🟡 Public PoC
What is CVE-2021-34558?
The Go crypto/tls package prior to version 1.16.6 allows inadequate validation of the public key type in X.509 certificates during RSA key exchange. This shortcoming can enable a malicious TLS server to induce a panic in a TLS client, exposing applications to unexpected behaviors and potential denial of service. Users are advised to update to versions after 1.16.5 to mitigate this risk.
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.