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exploit_mitigations's Introduction

Exploitation Mitigations

The goal is to list exploitation mitigations added over time in various operating systems, software, libraries or hardware. It becomes handy to know if a given vulnerability is easily exploitable or not depending on exploitation mitigations in place.

An example is the following:


Table of contents


Supported targets

We currently support the following operating systems:

and the following software:

and the following libraries:

and the following hardware:

Motivations

It has become challenging to follow when certain mitigations are added in an update and/or backported to some older versions of various software and hardware.

Sometimes, online content becomes deprecated due to mitigation changes and it can be hard to keep up. Also, it is easy to forget after a short time if you don't work on a specific software/hardware.

We have been filling this gap by tracking all the mitigations in summary tables that hold the mitigations names and linking to online references to get technical information about them.

The shared information has demonstrated to be useful for several years to exploit developers.

Does my current environment have mitigation X?

This is a common question any exploit developer may have when trying to develop an exploit for a given target.

E.g. let's say you want to exploit a Windows kernel driver on Windows 7 x64 containing a kernel NULL pointer dereference bug. Is it exploitable?

Checking our table, we read the "NULL page mitigation" was introduced in "Windows 8 32-bit/64-bit and backported to Vista+ 64-bit". Now we know it depends if our target Windows 7 x64 is up-to-date or not, more precisely, we can focus on figuring out which KB introduces this mitigation and check our target against that KB!

Final words

We do accept pull requests so feel free to do so :)

We do have other targets in our private pipeline too so reach out if you are interested in another particular one :)

exploit_mitigations's People

Contributors

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exploit_mitigations's Issues

Android term clarification

The term Android needs to be clarified more because it's a very ambiguous term. Are we referring to the kernel? Are we referring to AOSP? The Android versions (9, 10, 11, 12)? etc.

Not all OEMs implement these mitigations too so clarification of the term is necessary.

Add some Chrome Mitigations

W^X in Apple SecureROM

This page states that A7 has W^X in SecureROM. That is not the case. The first Apple ROM to feature W^X is the A9X.
I don't have a source to quote, but I'm one of the checkra1n developers, and we do run shellcode directly off the heap on A9 and below as part of our jailbreak. Everything is mapped as RWX there.

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