CVE-2025-62784 InventoryGui 物品复制漏洞

# CVE-2025-62784 PoC - InventoryGui Item Duplication # This PoC demonstrates the item duplication vulnerability in InventoryGui < 1.6.5 # when Bundle feature is enabled import json def demonstrate_exploitation(): """ Attack scenario for InventoryGui item duplication: Prerequisites: - Minecraft server with InventoryGui < 1.6.5 - Experimental Bundle feature enabled - Plugin using GuiStorageElement with allow-take enabled """ exploit_steps = { "step_1": { "action": "Prepare items in Bundle", "description": "Put valuable items into a Bundle item" }, "step_2": { "action": "Place Bundle in GuiStorageElement", "description": "Add the Bundle to the GUI storage element" }, "step_3": { "action": "Trigger extraction", "description": "Click to take items out of the GUI storage element" }, "step_4": { "action": "Exploit race condition", "description": "Rapidly repeat extraction due to improper state tracking" }, "step_5": { "action": "Collect duplicated items", "description": "Items are duplicated due to Bundle + storage element bug" } } # Example exploit code structure poc_code = ''' // Pseudocode for exploiting CVE-2025-62784 // Target: InventoryGui < 1.6.5 with GuiStorageElement public void exploitItemDuplication(Player player, GUI gui) { GuiStorageElement storage = gui.getElement("storage_element"); Bundle bundle = new Bundle(); // Step 1: Fill bundle with valuable items bundle.addItem(new ItemStack(Material.DIAMOND, 64)); // Step 2: Place bundle in storage storage.setItem(0, bundle); // Step 3-4: Rapid extraction exploiting the bug // The storage state is not properly updated due to Bundle handling for (int i = 0; i < 100; i++) { ItemStack extracted = storage.extractItem(0, 1); if (extracted != null) { player.getInventory().addItem(extracted); // Items get duplicated due to improper state tracking } } } // Fix: Update to InventoryGui 1.6.5+ // The fix adds proper state validation for item extraction ''' return json.dumps({ "cve_id": "CVE-2025-62784", "vulnerable_versions": "< 1.6.5", "exploit_steps": exploit_steps, "poc_code": poc_code }, indent=2) if __name__ == "__main__": print(demonstrate_exploitation())