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split sandboxing out of exploit mitigations

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Daniel Micay 2022-05-09 16:26:44 -04:00
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@ -96,6 +96,8 @@
reduction</a></li> reduction</a></li>
<li><a href="#exploit-mitigations">Exploit <li><a href="#exploit-mitigations">Exploit
mitigations</a></li> mitigations</a></li>
<li><a href="#improved-sandboxing">Improved
sandboxing</a></li>
<li><a href="#anti-persistence">Anti-persistence / <li><a href="#anti-persistence">Anti-persistence /
detection</a></li> detection</a></li>
</ul> </ul>
@ -229,7 +231,6 @@
<ul> <ul>
<li>Hardened app runtime</li> <li>Hardened app runtime</li>
<li>Stronger app sandbox</li>
<li><a href="https://github.com/GrapheneOS/platform_bionic">Hardened libc</a> <li><a href="https://github.com/GrapheneOS/platform_bionic">Hardened libc</a>
providing defenses against the most common classes of vulnerabilities (memory providing defenses against the most common classes of vulnerabilities (memory
corruption)</li> corruption)</li>
@ -313,6 +314,20 @@
</ul> </ul>
</section> </section>
<section id="improved-sandboxing">
<h4><a href="#improved-sandboxing">Improved sandboxing</a></h4>
<p>GrapheneOS improves the app sandbox through hardening SELinux policy
and seccomp-bpf policy along with all the hardening to components like
kernel implementing the app sandbox and providing a path for the attacker
to escape it if they can exploit those components. We primarily focus on
the app sandbox, but we also improve the other sandboxes including making
direct improvements to the web browser renderer sandbox used for both the
default browser and WebView rendering engine provided by the OS and used
by a huge number of other apps from dedicated browsers to messaging
apps.</p>
</section>
<section id="anti-persistence"> <section id="anti-persistence">
<h4><a href="#anti-persistence">Anti-persistence / detection</a></h4> <h4><a href="#anti-persistence">Anti-persistence / detection</a></h4>