From c6769586310c074c000a19f1a8aaf6a2592bd5a2 Mon Sep 17 00:00:00 2001 From: Tommy <contact@tommytran.io> Date: Sun, 16 Jun 2024 12:50:34 -0700 Subject: [PATCH] Update sysctl settings recommendations Signed-off-by: Tommy <contact@tommytran.io> --- content/posts/linux/Desktop Linux Hardening.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/content/posts/linux/Desktop Linux Hardening.md b/content/posts/linux/Desktop Linux Hardening.md index 13bf660..edefb88 100644 --- a/content/posts/linux/Desktop Linux Hardening.md +++ b/content/posts/linux/Desktop Linux Hardening.md @@ -285,9 +285,9 @@ _This section extensively references [Madaidan's Linux Hardening Guide](https:// _See ["2.2 Sysctl"](https://madaidans-insecurities.github.io/guides/linux-hardening.html#sysctl) in Madaidan's guide._ -Madaidan recommends that you disable [unprivileged user namespaces](https://github.com/sangam14/CloudNativeLab/blob/master/LXC/Linux%20Containers/User_namespaces.md) due to the [significant attack surface for privilege escalation](https://madaidans-insecurities.github.io/linux.html#kernel). However, some software such as Podman and LXC relies on unprivileged user namespaces. If you wish to use such software, do not disable `kernel.unprivileged_userns_clone`. +Madaidan recommends that you disable [unprivileged user namespaces](https://github.com/sangam14/CloudNativeLab/blob/master/LXC/Linux%20Containers/User_namespaces.md) due to the [significant attack surface for privilege escalation](https://madaidans-insecurities.github.io/linux.html#kernel). However, some software such as Podman and LXC relies on unprivileged user namespaces. If you wish to use such software, do not disable `kernel.unprivileged_userns_clone`. Note that this setting does not exist in the upstream kernel and is patched in in some downstream distributions. -If you are using Kicksecure or Whonix, most of this hardening is included by default. If you are using Debian, you should consider [morphing it into Kicksecure](https://www.kicksecure.com/wiki/Debian). On other distributions, you can copy the [configuration files from Kicksecure](https://github.com/Kicksecure/security-misc/tree/master/usr/lib/sysctl.d) into `/etc/sysctl.d/` (but note that these configurations do not disable unprivileged user namespaces). +If you are using Kicksecure or Whonix, most of this hardening is included by default. If you are using Debian, you should consider [morphing it into Kicksecure](https://www.kicksecure.com/wiki/Debian). On other distributions, you can copy the configuration file from [my repository](https://github.com/TommyTran732/Linux-Setup-Scripts/blob/main/etc/sysctl.d/99-workstation.conf). #### Boot Parameters