geforkt von Mirrors/Paper
89d51d5f29
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable. It should be noted that this decision does not promise all future exploits will be configurable.
25 Zeilen
1.6 KiB
Diff
25 Zeilen
1.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Sat, 7 May 2022 14:58:53 -0700
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Subject: [PATCH] Do not accept invalid client settings
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diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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index 67e75982d712fdd2f751f2a0fcafba7aec779d74..789576f8b7b3001c243972b320b7dffbbf3baa5f 100644
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--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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@@ -3161,6 +3161,13 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
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@Override
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public void handleClientInformation(ServerboundClientInformationPacket packet) {
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PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel());
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+ // Paper start - do not accept invalid information
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+ if (packet.information().viewDistance() < 0) {
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+ LOGGER.warn("Disconnecting " + this.player.getScoreboardName() + " for invalid view distance: " + packet.information().viewDistance());
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+ this.disconnect("Invalid client settings", org.bukkit.event.player.PlayerKickEvent.Cause.ILLEGAL_ACTION);
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+ return;
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+ }
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+ // Paper end - do not accept invalid information
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this.player.updateOptions(packet.information());
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this.connection.channel.attr(io.papermc.paper.adventure.PaperAdventure.LOCALE_ATTRIBUTE).set(net.kyori.adventure.translation.Translator.parseLocale(packet.information().language())); // Paper
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}
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