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Patch 'sploits (1.19) (#35)

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* Prevent invalid container events

* Do not attempt to cast items to recipes
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Allink 2022-07-10 03:21:23 +01:00 committed by GitHub
parent f203e5630b
commit ce5f721017
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2 changed files with 61 additions and 0 deletions
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37
patches/server/0033-Prevent-invalid-container-events.patch Normal file
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@ -0,0 +1,37 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Allink <arclicious@vivaldi.net>
Date: Sun, 10 Jul 2022 02:55:01 +0100
Subject: [PATCH] Prevent invalid container events
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index d053c7547db965cd103a6edf56916f3c6e98a673..1f5553977de20cc52ba654fbaf56c5002d561bb4 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -31,6 +31,8 @@ import java.util.function.UnaryOperator;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import javax.annotation.Nullable;
+
+import net.kyori.adventure.text.format.NamedTextColor;
import net.minecraft.ChatFormatting;
import net.minecraft.CrashReport;
import net.minecraft.CrashReportCategory;
@@ -3034,6 +3036,17 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
}
if (packet.getClickType() != net.minecraft.world.inventory.ClickType.QUICK_CRAFT) {
+ // Scissors start - Do not call events when the slot/button number is invalid
+ if(packet.getSlotNum() > 45)
+ {
+ this.getCraftPlayer().kick(
+ net.kyori.adventure.text.Component.text("Invalid container click slot (Hacking?)")
+ .color(NamedTextColor.RED)
+ );
+ return;
+ }
+ // Scissors end
+
if (click == ClickType.NUMBER_KEY) {
event = new InventoryClickEvent(inventory, type, packet.getSlotNum(), click, action, packet.getButtonNum());
} else {

24
patches/server/0034-Do-not-attempt-to-cast-items-to-recipes.patch Normal file
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@ -0,0 +1,24 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Allink <arclicious@vivaldi.net>
Date: Sun, 10 Jul 2022 02:55:33 +0100
Subject: [PATCH] Do not attempt to cast items to recipes
diff --git a/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
index 2a005e837108d1879da31e8054afbbd6bf7b175e..97bcfb36a37eb7d889d6233e7de9b7b53c8a8a5c 100644
--- a/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
@@ -648,6 +648,13 @@ public abstract class AbstractFurnaceBlockEntity extends BaseContainerBlockEntit
Entry<ResourceLocation> entry = (Entry) objectiterator.next();
worldserver.getRecipeManager().byKey((ResourceLocation) entry.getKey()).ifPresent((irecipe) -> {
+ // Scissors start - Do not attempt to cast items to recipes
+ if (!(irecipe instanceof AbstractCookingRecipe))
+ {
+ return;
+ }
+ // Scissors end
+
list.add(irecipe);
AbstractFurnaceBlockEntity.createExperience(worldserver, vec3d, entry.getIntValue(), ((AbstractCookingRecipe) irecipe).getExperience(), blockposition, entityplayer, itemstack, amount); // CraftBukkit
});