CyberRota Analysis
AI-GeneratedThe CryptManager encryption routine in Minosoft's Minecraft Java Edition client is vulnerable due to the use of a non-random initialization vector (IV) derived from the secret key, exposing it to chosen-ciphertext and chosen-plaintext attacks. This flaw allows attackers to potentially recover the secret key by submitting specific messages for encryption. Organizations using affected versions of this client should prioritize addressing this vulnerability, as no patches or workarounds are currently available.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
Minosoft is an open-source, multi-version Minecraft Java Edition client written in Kotlin. Starting in commit f1ae30e2b046a490026a8413b075685deb795122, the CryptManager encryption routine ( CryptManager.kt ) initializes its AES cipher using an initialization vector (IV) that is set equal to the secret key rather than to a sufficiently random value. Because the IV is not random and is derived directly from the key, the encryption is vulnerable to chosen-ciphertext/chosen-plaintext attacks: an attacker who can submit specific messages for encryption can recover the secret key. This affects all versions supporting Minecraft protocol 1.7 and later. No patched version is available, and no known workarounds are available.