mirror of
https://github.com/opnsense/docs
synced 2024-11-03 09:40:27 +00:00
66 lines
2.1 KiB
ReStructuredText
66 lines
2.1 KiB
ReStructuredText
===========
|
|
HardenedBSD
|
|
===========
|
|
|
|
.. image:: ./images/Logo-label-hardenedbsd.png
|
|
|
|
------------
|
|
Introduction
|
|
------------
|
|
|
|
HardenedBSD is a fork of FreeBSD, founded in 2014, that implements
|
|
exploit mitigations and security hardening technologies. The primary
|
|
goal of HardenedBSD is to perform a clean-room re-implementation of
|
|
the grsecurity patchset for Linux to HardenedBSD.
|
|
|
|
-----------------
|
|
Why Fork FreeBSD?
|
|
-----------------
|
|
|
|
Work on HardenedBSD began in 2013 when Oliver Pinter and Shawn Webb
|
|
started working on an implementation of Address Space Layout
|
|
Randomization (ASLR), based on PaX's publicly-available documentation,
|
|
for FreeBSD. At that time, HardenedBSD was meant to be a staging area
|
|
for experimental development on the ASLR patch. Over time, as the
|
|
process of upstreaming ASLR to FreeBSD became more difficult,
|
|
HardenedBSD naturally became a fork.
|
|
|
|
|
|
HardenedBSD completed its ASLR implementation in 2015 with the
|
|
strongest form of ASLR in any of the BSDs. Since then, HardenedBSD has
|
|
moved on to implementing other exploit mitigations and hardening
|
|
technologies. OPNsense, an open source firewall based on FreeBSD,
|
|
incorporated HardenedBSD's ASLR implementation in 2016.
|
|
|
|
|
|
HardenedBSD exists today as a fork of FreeBSD that closely follows
|
|
FreeBSD's source code. HardenedBSD syncs with FreeBSD every six hours.
|
|
|
|
|
|
-------------------
|
|
HardenedBSD's Goals
|
|
-------------------
|
|
|
|
HardenedBSD aims to provide the BSD community with a clean-room
|
|
reimplementation of the publicly-documented portions of the grsecurity
|
|
patchset for Linux.
|
|
|
|
|
|
-------------------
|
|
Who is HardenedBSD?
|
|
-------------------
|
|
|
|
HardenedBSD's core team consists of Oliver Pinter and Shawn Webb.
|
|
Contributions have been made by many individuals around the globe.
|
|
|
|
|
|
-------------------------
|
|
Cooperation with OPNsense
|
|
-------------------------
|
|
|
|
In May 2015, HardenedBSD announced collaboration with OPNSense. A
|
|
HardenedBSD-flavored version of OPNsense was published early on as a
|
|
proof-of-concept work. As the proof-of-concept proved stable, robust,
|
|
and scalable, OPNsense migrated to HardenedBSD with the support of
|
|
HardenedBSD's core team.
|