325 Commits

Author	SHA1	Message	Date
Patrick Schleizer	db43cedcfd	LANG=C str_replace	2021-08-22 05:23:24 -04:00
Patrick Schleizer	582492d6d8	port from pam_tally2 to pam_faillock ... since pam_tally2 was deprecated upstream	2021-08-10 17:13:00 -04:00
Patrick Schleizer	50bdd097df	move /usr/lib/security-misc to /usr/libexec/security-misc as per lintian FHS	2021-08-03 12:56:31 -04:00
Patrick Schleizer	0492f28aa1	enable "apt-get --error-on=any" by default ... makes apt exit non-zero for transient failures `/etc/apt/apt.conf.d/40error-on-any` https://forums.whonix.org/t/debian-bullseye-apt-get-error-on-any/12068	2021-08-03 12:37:39 -04:00
Patrick Schleizer	c94281121e	comment	2021-08-01 16:37:02 -04:00
Patrick Schleizer	eff5af0318	https://forums.whonix.org/t/restrict-root-access/7658/116	2021-06-20 10:16:33 -04:00
madaidan	97d8db3f74	Restrict sudo's file permissions	2021-06-05 19:16:42 +00:00
Patrick Schleizer	d87bee37f7	comment	2021-06-01 07:21:18 -04:00
Patrick Schleizer	809930c021	comment	2021-06-01 05:36:01 -04:00
Patrick Schleizer	e2afd00627	modify DKMS configuration file /etc/dkms/framework.conf ... Lower parallel compilation jobs to 1 if less than 2 GB RAM to avoid freezing of virtual machines. `parallel_jobs=1` This does not necessarily belong into security-misc, however likely security-misc will need to modify `/etc/dkms/framework.conf` in the future to enable kernel module signing. https://forums.whonix.org/t/linux-kernel-runtime-guard-lkrg-linux-kernel-runtime-integrity-checking-and-exploit-detection/8477/26 https://forums.whonix.org/t/enforce-kernel-module-software-signature-verification-module-signing-disallow-kernel-module-loading-by-default/7880/58	2021-04-29 11:14:30 -04:00
Patrick Schleizer	3ba3b37187	add /etc/dkms/framework.conf.security-misc ... original, from - https://github.com/dell/dkms/blob/master/dkms_framework.conf - https://raw.githubusercontent.com/dell/dkms/master/dkms_framework.conf https://forums.whonix.org/t/enforce-kernel-module-software-signature-verification-module-signing-disallow-kernel-module-loading-by-default/7880/58	2021-04-29 11:08:30 -04:00
Patrick Schleizer	a67007f4b7	copyright	2021-03-17 09:45:21 -04:00
Patrick Schleizer	a1819e8cab	comment	2021-03-01 09:15:44 -05:00
Kenton Groombridge	4db7d6be64	hide-hardware-info: allow unrestricting selinuxfs ... On SELinux systems, the /sys/fs/selinux directory must be visible to userspace utilities in order to function properly.	2021-02-06 03:02:08 -05:00
Patrick Schleizer	a258f35f38	comment	2021-01-05 02:11:08 -05:00
Patrick Schleizer	b2b614ed2a	cover more folders in /usr/local	2020-12-06 04:15:52 -05:00
Patrick Schleizer	5bd267d774	refactoring	2020-12-06 04:10:50 -05:00
Patrick Schleizer	11cdce02a0	refactoring	2020-12-06 04:10:10 -05:00
Patrick Schleizer	f73c55f16c	/opt ... https://forums.whonix.org/t/suid-disabler-and-permission-hardener/7706/68	2020-12-06 04:08:58 -05:00
Patrick Schleizer	c031f22995	SUID Disabler and Permission Hardener: introduce configuration option to disable all whitelists ... `whitelists_disable_all=true`	2020-12-01 05:14:48 -05:00
Patrick Schleizer	b09cc0de6a	Revert "SUID Disabler and Permission Hardener: introduce configuration option to disable all whitelists" ... This reverts commit 36a471ebce.	2020-12-01 05:10:26 -05:00
Patrick Schleizer	704f0500ba	fix, rename 40_default_whitelist_[...].conf to 25_default_whitelist_[...].conf ... since whitelist needs to be defined before SUID removal commands	2020-12-01 05:03:16 -05:00
Patrick Schleizer	36a471ebce	SUID Disabler and Permission Hardener: introduce configuration option to disable all whitelists ... `whitelists_disable_all=true`	2020-12-01 05:02:34 -05:00
Patrick Schleizer	318ab570aa	simplify disabling of SUID Disabler and Permission Hardener whitelist ... split `/etc/permission-hardening.d/30_default.conf` into multiple files `/etc/permission-hardening.d/40_default_whitelist_[...].conf` therefore make it easier to delete any whitelisted SUID binaries	2020-12-01 04:28:15 -05:00
Patrick Schleizer	cf07e977bd	add /bin/pkexec exactwhitelist for consistency ... since there is already `/usr/bin/pkexec exactwhitelist`	2020-11-29 09:09:42 -05:00
Patrick Schleizer	bb72c1278d	copyright	2020-11-05 06:36:39 -05:00
Patrick Schleizer	c1e0bb8310	shebang	2020-10-31 06:11:49 -04:00
Patrick Schleizer	3f656be574	chmod +x /etc/X11/Xsession.d/50panic_on_oops ... chmod +x /etc/X11/Xsession.d/50security-misc	2020-10-31 05:48:10 -04:00
madaidan	06ffd5d220	Restrict access to debugfs	2020-09-28 19:21:20 +00:00
Patrick Schleizer	da1ac48cde	unblacklist squashfs as this would likely break Whonix-Host ISO ... https://github.com/Whonix/security-misc/pull/75#issuecomment-700044182	2020-09-28 10:29:50 -04:00
Patrick Schleizer	4070133ed6	unblacklist vfat ... https://github.com/Whonix/security-misc/pull/75#issuecomment-695201068	2020-09-28 10:25:57 -04:00
Patrick Schleizer	3684ab585e	Merge pull request #75 from flawedworld/patch-1 ... Blacklist more modules (based on OpenSCAP for RHEL 8)	2020-09-28 14:24:15 +00:00
Patrick Schleizer	ae90107e6d	Merge pull request #76 from flawedworld/patch-2 ... Add IPv6 sysctl options and enforce kernel.perf_event_paranoid=3	2020-09-28 14:23:42 +00:00
flawedworld	a813e7da07	Blacklist more modules	2020-09-19 20:46:19 +01:00
Patrick Schleizer	9239c8b807	Merge pull request #71 from onions-knight/patch-1 ... Update thunar.xml	2020-09-19 10:54:21 +00:00
flawedworld	8f7727e823	Add some IPv6 options	2020-09-18 23:36:30 +01:00
flawedworld	944fed3c45	Disallow kernel profiling by users without CAP_SYS_ADMIN ... It's the default on a lot of stuff, but still nice to have.	2020-09-18 23:29:04 +01:00
Patrick Schleizer	7e267ab498	fix, allow group sudo and console to use consoles ... fix /etc/security/access-security-misc.conf syntax error Thanks to @81a989 for the bug report! https://forums.whonix.org/t/etc-security-hardening-console-lockdown-pam-access-access-conf/8592/31	2020-08-03 08:12:19 -04:00
Patrick Schleizer	3cd7b144bb	move "kernel.printk = 3 3 3 3" to separate file /etc/sysctl.d/30_silent-kernel-printk.conf ... so package debug-misc can easily disable it https://phabricator.whonix.org/T950	2020-05-14 13:47:58 -04:00
Patrick Schleizer	6485df8126	Prevent kernel info leaks in console during boot. ... add kernel parameter `quiet loglevel=0` https://phabricator.whonix.org/T950	2020-04-23 12:26:31 -04:00
Patrick Schleizer	8d2e4b68dc	Prevent kernel info leaks in console during boot. ... By setting `kernel.printk = 3 3 3 3`. https://phabricator.whonix.org/T950 Thanks to @madaidan for the suggestion!	2020-04-16 08:00:31 -04:00
Patrick Schleizer	4898a9e753	fix, sysctl-initramfs: switch log to /run/initramfs/sysctl-initramfs-error.log ... since ephemeral, in RAM, not written to disk, no conflict with grub-live https://forums.whonix.org/t/kernel-hardening/7296/435	2020-04-16 07:54:33 -04:00
Patrick Schleizer	701da5f6cc	formatting	2020-04-16 07:24:44 -04:00
Patrick Schleizer	253578afdf	/etc/security/access-security-misc.conf white list ttyS0 etc. ... ttyS0 ttyS1 ttyS2 ttyS3 ttyS4 ttyS5 ttyS6 ttyS7 ttyS8 ttyS9 Thanks to @subpar_marlin for the bug report and helping to fix this! https://forums.whonix.org/t/how-do-i-enter-the-whonix-shell-from-cli/7271/43 https://forums.whonix.org/t/etc-security-hardening/8592	2020-04-13 06:50:32 -04:00
Patrick Schleizer	b3ce18f0f9	disable proc-hidepid by default because incompatible with pkexec ... and undo pkexec wrapper	2020-04-12 16:54:10 -04:00
Patrick Schleizer	4429315291	disable proc-hidepid by default because incompatible with pkexec ... and undo pkexec wrapper	2020-04-12 16:52:55 -04:00
Patrick Schleizer	938e929f39	add pkexec to suid default whitelist ... /usr/bin/pkexec exactwhitelist /usr/bin/pkexec.security-misc-orig exactwhitelist	2020-04-12 16:37:51 -04:00
Patrick Schleizer	565ff136e5	vm.swappiness=1 ... import from swappiness-lowest https://forums.whonix.org/t/vm-swappiness-1-set-swapiness-to-lowest-setting-still-useful-swappiness-lowest/9278	2020-04-08 21:04:02 +00:00
Patrick Schleizer	72228946dc	fix etc/default/grub.d/40_kernel_hardening.cfg ... in Qubes if no kernel package is installed	2020-04-08 16:46:11 +00:00
Patrick Schleizer	5c81e1f23f	import from anon-gpg-conf	2020-04-06 09:25:45 -04:00
Patrick Schleizer	a7f2a2a3b6	console lockdown: allow members of group sudo to use console ... https://forums.whonix.org/t/etc-security-hardening/8592 https://github.com/Whonix/security-misc/pull/74#issuecomment-607748407 https://www.whonix.org/wiki/Dev/Strong_Linux_User_Account_Isolation#Console_Lockdown	2020-04-02 06:04:45 -04:00
Patrick Schleizer	7764ee0d20	comments	2020-04-02 05:58:16 -04:00
Patrick Schleizer	2ceea8d1fe	update copyright year	2020-04-01 08:49:59 -04:00
Patrick Schleizer	814f613a2f	When using systemd-nspawn (chroot) then login requires console 'console' to be permitted.	2020-03-31 07:08:25 -04:00
Patrick Schleizer	5f0dd8270b	consistent use of quotes	2020-03-21 14:14:35 -04:00
Patrick Schleizer	66ea1a3a12	minor	2020-03-21 14:14:15 -04:00
Patrick Schleizer	23bd7ead59	remove trailing space	2020-03-21 14:12:42 -04:00
madaidan	89ada11cf9	Only remount if already mounted read-only	2020-03-21 17:49:07 +00:00
madaidan	c8826d6702	Fix sysctl-initramfs logs	2020-03-21 17:15:25 +00:00
onions-knight	8dfdec1d3b	Update thunar.xml ... Adding Delete option for thunar on right mouse click (removed in Debian 10). See https://forums.whonix.org/t/whonix-host-calamares-branding-suggestion/7772/26	2020-03-17 16:38:53 +00:00
madaidan	4d0de87f79	Disable unprivileged userfaultfd use again	2020-03-08 17:49:49 +00:00
madaidan	efb2683cfc	Hide unprivileged_userfaultfd error	2020-03-08 17:49:12 +00:00
Patrick Schleizer	284a491100	disable vm.unprivileged_userfaultfd=0 for now ... because broken https://forums.whonix.org/t/kernel-hardening/7296/406 reverts "Restrict the userfaultfd() syscall to root as it can make heap sprays easier." https://duasynt.com/blog/linux-kernel-heap-spray	2020-03-08 08:07:10 -04:00
madaidan	6b64b36b01	Restrict the userfaultfd() syscall to root	2020-02-24 18:23:15 +00:00
madaidan	f6b6ab374e	Gather more entropy during boot	2020-02-16 19:51:32 +00:00
madaidan	a79ce7fa68	Document ldisc_autoload better	2020-02-15 17:30:21 +00:00
Patrick Schleizer	1e5946c795	Merge branch 'master' into sysrq	2020-02-15 10:41:52 +00:00
Patrick Schleizer	5124f8cebc	Merge pull request #61 from madaidan/disable_early_pci_dma ... Avoid holes in IOMMU	2020-02-15 10:18:56 +00:00
madaidan	9b767139ef	Avoid holes in IOMMU	2020-02-14 18:52:01 +00:00
madaidan	d251c43344	Restrict the SysRq key	2020-02-14 18:17:20 +00:00
madaidan	0ea7dd161b	Restrict loading line disciplines to CAP_SYS_MODULE	2020-02-14 17:50:19 +00:00
Patrick Schleizer	ad6b766886	Merge pull request #57 from madaidan/sysctl ... Prevent symlink/hardlink TOCTOU races	2020-02-13 18:40:58 +00:00
madaidan	700c7ed908	Create 40_cpu_mitigations.cfg	2020-02-12 18:42:13 +00:00
madaidan	ba0043b8a7	Update 40_kernel_hardening.cfg	2020-02-12 18:36:05 +00:00
madaidan	5cb21d0d4d	Prevent symlink/hardlink TOCTOU races	2020-02-12 18:03:23 +00:00
HulaHoop0	e4c6e897cf	kvm.nx_huge_pages=force	2020-02-03 16:06:46 +00:00
Patrick Schleizer	85d2aa1365	hide stdout (but not stderr) by sysctl during initramfs	2020-01-30 06:13:42 -05:00
Patrick Schleizer	b9d65338bc	unconditionally enable all CPU bugs (spectre, meltdown, L1TF, ...) ... this might reduce performance * `spectre_v2=on` * `spec_store_bypass_disable=on` * `tsx=off` * `tsx_async_abort=full,nosmt` Thanks to @madaidan for the suggestion! https://forums.whonix.org/t/should-all-kernel-patches-for-cpu-bugs-be-unconditionally-enabled-vs-performance-vs-applicability/7647	2020-01-30 05:55:13 -05:00
Patrick Schleizer	c1a0da60be	set kernel boot parameter l1tf=full,force and nosmt=force ... https://forums.whonix.org/t/should-all-kernel-patches-for-cpu-bugs-be-unconditionally-enabled-vs-performance-vs-applicability/7647/17	2020-01-30 00:46:48 -05:00
Patrick Schleizer	a37da1c968	add digits to drop-in file names	2020-01-24 04:39:06 -05:00
Patrick Schleizer	e0aa67677d	merge the many modprobe.d config files into 1 ... and use a name starting with double digits to make it easier to disable settings using a lexically higher config file	2020-01-24 04:30:36 -05:00
Patrick Schleizer	6a4c493213	merge the many sysctl config files into 1 ... and use a name starting with double digits to make it easier to disable settings using a lexically higher config file	2020-01-24 04:26:36 -05:00
Patrick Schleizer	6f8d89c6c5	error handling	2020-01-15 15:54:06 -05:00
madaidan	f7fde60b67	Process sysctl.conf too	2020-01-15 20:28:32 +00:00
Patrick Schleizer	528c5fc4c4	Merge branch 'master' into sysctl-initramfs	2020-01-15 11:02:03 +00:00
Patrick Schleizer	80159545a5	fix xfce4-power-manager xfpm-power-backlight-helper pkexec lxsudo popup ... https://forums.whonix.org/t/xfce4-power-manager-xfpm-power-backlight-helper-pkexec-lxsudo-popup/8764 do show lxqt-sudo password prompt if there is a sudoers exceptoin improved pkexec wrapper logging	2020-01-15 02:42:10 -05:00
madaidan	8c4e0ff1c4	Set sysctl values in initramfs	2020-01-12 21:37:37 +00:00
madaidan	a662a76a52	Blacklist vivid	2020-01-11 18:37:00 +00:00
Patrick Schleizer	f3ff32ddbb	Protect /bin/mount from 'chmod -x'. ... /bin/mount exactwhitelist /usr/bin/mount exactwhitelist Remove SUID from 'mount' but keep executable. /bin/mount 745 root root /usr/bin/mount 745 root root https://forums.whonix.org/t/disable-suid-binaries/7706/61	2019-12-30 06:39:24 -05:00
Patrick Schleizer	e5623fcd2b	comment	2019-12-29 04:21:52 -05:00
Patrick Schleizer	674840e6f9	/fusermount matchwhitelist ... unbreak AppImages such as electrum Bitcoin wallet https://forums.whonix.org/t/disable-suid-binaries/7706/57	2019-12-26 05:44:35 -05:00
Patrick Schleizer	ede536913d	no longer hardcode amd64	2019-12-24 06:00:41 -05:00
Patrick Schleizer	27a42a9da8	Merge pull request #50 from madaidan/modules ... Make /lib/modules unreadable	2019-12-24 10:55:11 +00:00
Patrick Schleizer	ac49c55d1f	Merge pull request #49 from madaidan/kver ... Detect kernel upgrades	2019-12-24 10:55:03 +00:00
madaidan	79241c5d09	Make /lib/modules unreadable	2019-12-23 20:28:29 +00:00
madaidan	98e88d1456	Detect kernel upgrades	2019-12-23 19:57:43 +00:00
madaidan	d1a0650fd9	Use only one slub_debug parameter	2019-12-23 19:44:52 +00:00
Patrick Schleizer	9d77d88a4d	comments	2019-12-23 09:39:50 -05:00
Patrick Schleizer	3e131174d5	comments	2019-12-23 05:00:35 -05:00
Patrick Schleizer	9f072ce4f9	comment	2019-12-23 03:46:02 -05:00