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The CVE-2024-XXXX vulnerability in InventoryGui exploits the interaction between the experimental Minecraft “Bundle” item and the GuiStorageElement. When a Bundle, which can nest items within itself, is placed into a GUI storage interface, improper validation of the item stack data occurs. The GuiStorageElement fails to correctly account for the nested inventory of the Bundle, allowing malicious users to manipulate the GUI’s item counting logic. By moving Bundles in and out of specific slots in a crafted sequence, the duplication glitch is triggered. This happens because the internal state of the GUI’s storage representation becomes desynchronized from the actual Bundle contents, creating phantom copies of the items stored inside the Bundle upon closing the interface.
Platform: Minecraft/Java
Version: <=1.6.3-SNAPSHOT
Vulnerability: Item Duplication
Severity: Moderate
date: 2024-10-21
Prediction: Patch expected by 2024-11-04
What Undercode Say:
find /plugins -name "InventoryGui.jar" -exec sh -c 'echo "Found: $1"; unzip -l "$1" | grep -i snapshot' _ {} \;
// Pseudo-code for vulnerability trigger
if (item.getType() == BUNDLE) {
// Missing deep copy & validation
guiStorage.addItem(item.getContents()); // Duplication occurs here
}
How Exploit:
Craft GUI sequence.
Insert manipulated Bundle.
Swap items rapidly.
Close GUI, duplicating contents.
Protection from this CVE
Update to 1.6.4-SNAPSHOT.
Disable Bundle experiments.
Avoid GuiStorageElement usage.
Impact:
Item economy destruction.
Server inventory corruption.
Unintended player wealth.
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Sources:
Reported By: github.com
Extra Source Hub:
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