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Advisories

PocketMine-MP 5.2.0 Server Crash via Incorrect EC Curve

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severity
high
date
Affecting

  • PocketMine-MP

CWE
  • CWE-347 Improper Verification of Cryptographic Signature
CVSS
8.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
dktapps
Description
PocketMine-MP versions before 5.3.1 and 4.23.1 fail to validate that the identityPublicKey in LoginPacket uses the required secp384r1 elliptic curve. Attackers can provide LoginPackets with keys using different curves or non-EC key types to pass login verification but trigger an uncaught exception during ECDH key derivation, crashing the server.

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