| commit | af05ed8abdc0eb1bfc1e5cdb44963d6e3b4bee58 | [log] [tgz] |
|---|---|---|
| author | Mark Rowe <markrowe@chromium.org> | Mon May 15 21:33:54 2023 |
| committer | Copybara-Service <copybara-worker@google.com> | Mon May 15 22:06:44 2023 |
| tree | f8c1aa12348fc1102e6eb4261eab8eca3ff6ed52 | |
| parent | 0adab5275822e9ce0698e4a1180c4119ca312ee3 [diff] |
Add an explanation for why access to cfsprefsd is denied This is denied by our general default policy, but since it generates sandbox reports when sandbox logging is enabled it's helpful to have a record of which denials are intentionally denied rather than yet to be addressed. This section will be fleshed out further as I have time to investigate the other intentional denials. Change-Id: Id3e0ac9a55df498e1fc92d3c3c597d753f083756 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4534381 Reviewed-by: Robert Sesek <rsesek@chromium.org> Auto-Submit: Mark Rowe <markrowe@chromium.org> Commit-Queue: Robert Sesek <rsesek@chromium.org> Cr-Commit-Position: refs/heads/main@{#1144391} NOKEYCHECK=True GitOrigin-RevId: b4529b6fc93ad8473fe379cd1a5c936c232f95e6
This directory contains platform-specific sandboxing libraries. Sandboxing is a technique that can improve the security of an application by separating untrustworthy code (or code that handles untrustworthy data) and restricting its privileges and capabilities.
Each platform relies on the operating system's process primitive to isolate code into distinct security principals, and platform-specific technologies are used to implement the privilege reduction. At a high-level:
mac/ uses the Seatbelt sandbox. See the detailed design for more.linux/ uses namespaces and Seccomp-BPF. See the detailed design for more.win/ uses a combination of restricted tokens, distinct job objects, alternate desktops, and integrity levels. See the detailed design for more.Built on top of the low-level sandboxing library is the //sandbox/policy component, which provides concrete policies and helper utilities for sandboxing specific Chromium processes and services. The core sandbox library cannot depend on the policy component.