From d3fc90698c11fde0a7c56d6147eb4f7d075abef4 Mon Sep 17 00:00:00 2001 From: Spottedleaf Date: Fri, 12 Jun 2020 16:51:39 -0700 Subject: [PATCH] PaperPR - Prevent position desync in playerconnection causing tp exploit --- src/main/java/net/minecraft/server/PlayerConnection.java | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java index 3a1aa1d4da..c13296935c 100644 --- a/src/main/java/net/minecraft/server/PlayerConnection.java +++ b/src/main/java/net/minecraft/server/PlayerConnection.java @@ -1104,6 +1104,11 @@ public class PlayerConnection implements PacketListenerPlayIn { } this.player.move(EnumMoveType.PLAYER, new Vec3D(d7, d8, d9)); + // Purpur start - prevent position desync + if (this.teleportPos != null) { + return; // ... thanks Mojang for letting move calls teleport across dimensions. + } + // Purpur end - prevent position desync this.player.onGround = packetplayinflying.b(); double d12 = d8; -- 2.26.2