PocketMine-MP versions before 5.39.2 contain a network amplification vulnerability in ActorEventPacket handling that allows clients to trigger consuming animations for all visible players. Attackers can send crafted ActorEventPacket messages to spam animation events to other clients and waste server CPU and memory resources.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 3
https://github.com/pmmp/PocketMine-MP/commit/aeea1150a772a005b92bd418366f1b7cf1…
disclosure@vulncheck.com
https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-7hmv-4j2j-pp6f
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/pocketmine-mp-before-5.39.2-network-amplif…
disclosure@vulncheck.com