27 Zeilen
1.9 KiB
Diff
27 Zeilen
1.9 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Aikar <aikar@aikar.co>
|
|
Date: Sat, 2 May 2020 03:09:46 -0400
|
|
Subject: [PATCH] Validate PickItem Packet and kick for invalid
|
|
|
|
|
|
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
|
|
index 0d6cdd7e52bffe392a668a0885855b9ca7cb4368..ca4dd5aa34188e121eb92d58305a2979b3797a12 100644
|
|
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
|
|
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
|
|
@@ -895,7 +895,14 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
|
|
@Override
|
|
public void handlePickItem(ServerboundPickItemPacket packet) {
|
|
PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel());
|
|
- this.player.getInventory().pickSlot(packet.getSlot());
|
|
+ // Paper start - validate pick item position
|
|
+ if (!(packet.getSlot() >= 0 && packet.getSlot() < this.player.getInventory().items.size())) {
|
|
+ ServerGamePacketListenerImpl.LOGGER.warn("{} tried to set an invalid carried item", this.player.getName().getString());
|
|
+ this.disconnect(Component.literal("Invalid hotbar selection (Hacking?)"));
|
|
+ return;
|
|
+ }
|
|
+ this.player.getInventory().pickSlot(packet.getSlot()); // Paper - Diff above if changed
|
|
+ // Paper end - validate pick item position
|
|
this.player.connection.send(new ClientboundContainerSetSlotPacket(-2, 0, this.player.getInventory().selected, this.player.getInventory().getItem(this.player.getInventory().selected)));
|
|
this.player.connection.send(new ClientboundContainerSetSlotPacket(-2, 0, packet.getSlot(), this.player.getInventory().getItem(packet.getSlot())));
|
|
this.player.connection.send(new ClientboundSetCarriedItemPacket(this.player.getInventory().selected));
|