Microsoft Edge: ACG bypass using DuplicateHandle

ACG Arbitrary Code Guard in Microsoft Edge is bypassable. The bypass has been tested on Microsoft Edge 40.15063.0.0 running on Windows 10 Enterprise 64-bit with Creators Update Version 1703, OS build 15063.413 Background: To implement ACG...

Microsoft Edge Security Bypass Vulnerability(CVE-2017-8637)

There is an issue in Chakra JIT server that can be potentially exploited to compromise the JIT process from a compromised browser content process. Bugs like this could potentially be used to bypass ACG Arbitrary Code Guard in Microsoft Edge. The issue has been confirmed on a ChakraCore build from...

Microsoft Edge Security Bypass Vulnerability (CNVD-2017-20503)

Microsoft Windows 10 is a set of next-generation cross-platform operating systems released by Microsoft Corporation in the U.S. It is available for PCs and laptops, tablets, and cell phones, among other devices.Microsoft Edge is one of the default browsers that comes with the system. A security...

CVE-2017-8637

Microsoft Edge in Microsoft Windows 10 1703 allows an attacker to bypass Arbitrary Code Guard ACG due to how Microsoft Edge accesses memory in code compiled by the Edge Just-In-Time JIT compiler, aka "Scripting Engine Security Feature Bypass Vulnerability"...

Security feature bypass

Microsoft Edge in Microsoft Windows 10 1703 allows an attacker to bypass Arbitrary Code Guard ACG due to how Microsoft Edge accesses memory in code compiled by the Edge Just-In-Time JIT compiler, aka "Scripting Engine Security Feature Bypass Vulnerability"...

CVE-2017-8637

Microsoft Edge in Microsoft Windows 10 1703 allows an attacker to bypass Arbitrary Code Guard ACG due to how Microsoft Edge accesses memory in code compiled by the Edge Just-In-Time JIT compiler, aka "Scripting Engine Security Feature Bypass Vulnerability"...

CVE-2017-8637

CVE-2017-8637 affects Microsoft Edge on Windows 10 version 1703, describing a security feature bypass of Arbitrary Code Guard (ACG) due to memory access in Edge’s JIT-compiled code. Connected sources detail that the Chakra/JIT server memory handling can process unvalidated loop headers, enabling ...

Scripting Engine Security Feature Bypass Vulnerability

A security feature bypass vulnerability exists in Microsoft Edge as a result of how memory is accessed in code compiled by the Edge Just-In-Time JIT compiler that allows Arbitrary Code Guard ACG to be bypassed. By itself, this ACG bypass vulnerability does not allow arbitrary code execution...