search

GrimAnticheat / Grim

Fully async, multithreaded, predictive, open source, 3.01 reach, 1.005 timer, 0.01% speed, 99.99% antikb, "bypassable" 1.8-1.20 anticheat.
GNU General Public License v3.0
1.09k stars 328 forks source link

Walking on slimeblock/slabs pattern on test server makes GroundSpoof and Simulation false flags #974

Open FatildaIV opened 1 year ago

FatildaIV commented 1 year ago

Describe the false positive and how to replicate it

Step 1: Join test.grim.ac Step 2: Teleport to -33 5 30 Step 3: Face south (towards positive Z) Step 4: Go forward while sprinting

https://paste.grim.ac/i0SMm

Grim version

2.3.36

Server version

This server is running Paper version git-Paper-307 (MC: 1.19.2) (Implementing API version 1.19.2-R0.1-SNAPSHOT) (Git: 476ef25) You are running the latest version Previous version: git-Paper-18 (MC: 1.19)

Plugins

Plugins (16): ACUtils, AnimeBoard, AntiDisconnectSpam, ClearLag, Essentials, EssentialsChat, EssentialsSpawn, GrimAC, LightPerms, MyCommand, PlaceholderAPI, ViaBackwards, ViaRewind, ViaVersion, WorldEdit, WorldGuard

FatildaIV commented 1 year ago

Comment: You can achieve more Simulation false flags when jumping while stepping up the slab: https://paste.grim.ac/d0IPa

SamB440 commented 1 year ago

Related to #760. If you apply my fix (removing the slime block or check), then it fixes this problem too. But again, unsure if that breaks anything else.