module

Google Chrome versions before 89.0.4389.128 V8 XOR Typer Out-Of-Bounds Access RCE

Disclosed
Apr 13, 2021

Description

This module exploits an issue in the V8 engine on x86_x64 builds of Google Chrome before 89.0.4389.128/90.0.4430.72
when handling XOR operations in JIT'd JavaScript code. Successful exploitation allows an attacker to execute
arbitrary code within the context of the V8 process.

As the V8 process is normally sandboxed in the default configuration of Google Chrome, the browser must be run with the
--no-sandbox option for the payload to work correctly.
Title
Rapid7 Labs

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