• Substantial security improvements coming to Microsoft Edge

    Posted on February 24, 2017 at 08:40 CST by • Comment in the Forums

    I’m as skeptical as the next guy – moreso, actually – but I’m impressed by the security enhancements planned for the next version of Edge.

    Matt Miller has an overview here.

    Part 2 should be out shortly.

    Long and short of it:

    Most modern browser exploits attempt to transform a memory safety vulnerability into a method of running arbitrary native code on a target device. This technique is prevalent because it provides the path of least resistance for attackers by enabling them to flexibly and uniformly stage each phase of their attack. For defenders, preventing arbitrary native code execution is desirable because it can substantially limit an attacker’s range of freedom without requiring prior knowledge of a vulnerability. To this end, Microsoft Edge in the Creators Update of Windows 10 leverages Code Integrity Guard (CIG) and Arbitrary Code Guard (ACG) to help break the most universal primitive found in modern web browser exploits: loading malicious code into memory.

    I don’t know how quickly the bad guys will be able to break CIG and ACG, but if they hold up as long as ASLR, it’ll be a significant improvement.

    Windows Patches/Security , , ,
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