393 Commits

Author	SHA1	Message	Date
Patrick Schleizer	fef1469fe6	exit non-zero if capability removal failed	2019-12-23 00:51:14 -05:00
Patrick Schleizer	17a8c29470	fix capability removal error handling ... https://forums.whonix.org/t/disable-suid-binaries/7706/45	2019-12-23 00:47:49 -05:00
Patrick Schleizer	b631e2ecd8	refactoring	2019-12-23 00:36:41 -05:00
Patrick Schleizer	7aea304549	comment	2019-12-23 00:26:15 -05:00
Patrick Schleizer	f4b1df02ee	Remove suid / gid and execute permission for 'group' and 'others'. ... Similar to: chmod og-ugx /path/to/filename Removing execution permission is useful to make binaries such as 'su' fail closed rather than fail open if suid was removed from these. Do not remove read access since no security benefit and easier to manually undo for users. chmod 744	2019-12-22 19:42:40 -05:00
Patrick Schleizer	d300db3cde	output	2019-12-21 14:45:11 -05:00
Patrick Schleizer	3921846df6	comment	2019-12-21 14:36:42 -05:00
Patrick Schleizer	1e8457ea47	no longer remount /lib ... https://forums.whonix.org/t/re-mount-home-and-other-with-noexec-and-nosuid-among-other-useful-mount-options-for-better-security/7707/25	2019-12-21 14:06:10 -05:00
Patrick Schleizer	10c19d6a8f	Merge remote-tracking branch 'origin/master'	2019-12-21 13:00:41 -05:00
madaidan	f5a52aeddc	Don't remount /sys/kernel/security	2019-12-21 14:55:28 +00:00
Patrick Schleizer	b2260f48f4	add support for /etc/exec / /usr/local/etc/exec ... to allow enabling exec on a per VM basis	2019-12-21 08:03:33 -05:00
Patrick Schleizer	b74e5ca972	comment	2019-12-21 07:47:00 -05:00
Patrick Schleizer	8fb17624bc	comment	2019-12-21 07:44:51 -05:00
Patrick Schleizer	aef796a524	disable debugging	2019-12-21 07:44:23 -05:00
Patrick Schleizer	1fe83d683f	comment	2019-12-21 07:43:55 -05:00
Patrick Schleizer	7c3da38bd5	comment	2019-12-21 07:42:25 -05:00
Patrick Schleizer	9050058bc2	fix	2019-12-21 07:42:01 -05:00
Patrick Schleizer	6b13a644df	add /usr/lib/security-misc/permission-hardening-undo	2019-12-21 07:37:41 -05:00
Patrick Schleizer	c336bc4fd2	comment	2019-12-21 06:39:13 -05:00
Patrick Schleizer	b5f88efe20	fix	2019-12-21 06:27:01 -05:00
Patrick Schleizer	2088628c8d	debugging	2019-12-21 06:24:08 -05:00
Patrick Schleizer	2dca031527	debugging	2019-12-21 06:22:46 -05:00
Patrick Schleizer	195e00cc87	output	2019-12-21 06:16:38 -05:00
Patrick Schleizer	4b21b6df41	fix	2019-12-21 06:11:44 -05:00
Patrick Schleizer	8436da2b7b	output	2019-12-21 05:58:50 -05:00
Patrick Schleizer	da15265e1c	fix	2019-12-21 05:55:23 -05:00
Patrick Schleizer	2a248fe0de	fix	2019-12-21 05:54:39 -05:00
Patrick Schleizer	4f12664362	output	2019-12-21 05:54:07 -05:00
Patrick Schleizer	e3355843c8	fix	2019-12-21 05:51:22 -05:00
Patrick Schleizer	234ec5fe93	fix	2019-12-21 05:47:35 -05:00
Patrick Schleizer	7ff900c204	fix	2019-12-21 05:37:43 -05:00
Patrick Schleizer	e1a5ee4bcf	output	2019-12-21 05:26:55 -05:00
Patrick Schleizer	66aaf3e22c	output	2019-12-21 05:25:54 -05:00
Patrick Schleizer	7aa7d0b5a0	improve error handling	2019-12-21 05:22:27 -05:00
Patrick Schleizer	8919d38de9	disable debugging	2019-12-21 05:21:46 -05:00
Patrick Schleizer	cf5dee64fd	refactoring	2019-12-21 05:18:34 -05:00
Patrick Schleizer	29cd9a0c38	fix	2019-12-21 05:17:35 -05:00
Patrick Schleizer	486027a4d7	fix	2019-12-21 05:15:38 -05:00
Patrick Schleizer	1fd26be864	fix	2019-12-21 05:14:51 -05:00
Patrick Schleizer	0fc97c37be	fix	2019-12-21 05:14:39 -05:00
Patrick Schleizer	1018d5b3b0	output	2019-12-21 05:11:51 -05:00
Patrick Schleizer	4388fc4d5a	refactoring	2019-12-21 05:11:19 -05:00
Patrick Schleizer	ed20980f4c	refactoring	2019-12-21 05:07:10 -05:00
Patrick Schleizer	315ce86b9a	refactoring	2019-12-21 04:33:03 -05:00
Patrick Schleizer	0c5848494b	do not remount if already has intended mount options	2019-12-21 04:21:26 -05:00
Patrick Schleizer	203f4ad46e	refactoring	2019-12-21 04:17:10 -05:00
Patrick Schleizer	e7fd0dadb0	output	2019-12-21 04:09:35 -05:00
Patrick Schleizer	e6ea21c775	record existing modes in separate dpkg-statoverwrite databases ... to have a history of what was modified and to allow to undo changes	2019-12-21 04:08:35 -05:00
Patrick Schleizer	17e8605119	add matchwhitelist feature ... add "/usr/lib/virtualbox/ matchwhitelist"	2019-12-20 12:57:24 -05:00
Patrick Schleizer	1b569ea790	comment	2019-12-20 12:32:36 -05:00
Patrick Schleizer	f88ca25889	fix terminology, sguid -> sgid ... Thanks to @madaidan for the bug report! https://forums.whonix.org/t/permission-hardening/8655/21	2019-12-20 11:58:07 -05:00
Patrick Schleizer	ff0a26fb5d	comment	2019-12-20 11:49:19 -05:00
Patrick Schleizer	71496a33ab	skip folders are these are not suid / guid	2019-12-20 11:47:53 -05:00
Patrick Schleizer	9321ecff41	no more need to add/remove /	2019-12-20 11:43:53 -05:00
Patrick Schleizer	b95225b6a6	pipefail	2019-12-20 11:37:05 -05:00
Patrick Schleizer	cad6f328f4	minor	2019-12-20 11:34:44 -05:00
Patrick Schleizer	3265f9894d	output	2019-12-20 11:27:43 -05:00
Patrick Schleizer	1615ebec58	output	2019-12-20 11:07:44 -05:00
Patrick Schleizer	1e11b775cf	output	2019-12-20 11:05:05 -05:00
Patrick Schleizer	731f802895	output	2019-12-20 11:04:12 -05:00
Patrick Schleizer	cd8efe5800	output	2019-12-20 11:03:22 -05:00
Patrick Schleizer	b31abea0af	improve error handling	2019-12-20 10:49:31 -05:00
Patrick Schleizer	79cd3b86b6	comment	2019-12-20 10:47:23 -05:00
Patrick Schleizer	b3458cc6ee	fix checking existing entries to avoid needless calls to dpkg-statoverride	2019-12-20 10:45:59 -05:00
Patrick Schleizer	370f3c5e54	comment	2019-12-20 10:35:05 -05:00
Patrick Schleizer	133d09f298	output	2019-12-20 10:33:16 -05:00
Patrick Schleizer	1ffa8e197e	speed up setuid removal by using find with '-perm /u=s,g=s' ... https://forums.whonix.org/t/permission-hardening/8655/19	2019-12-20 10:31:26 -05:00
Patrick Schleizer	4cfdf2c65b	fix, re-enforce nosuid even if changed on the disk	2019-12-20 10:21:27 -05:00
Patrick Schleizer	e36868e675	output	2019-12-20 10:02:46 -05:00
Patrick Schleizer	50b8f65490	add sanity test: count if we really processed all files	2019-12-20 09:59:28 -05:00
Patrick Schleizer	55faa7b997	fix missing processing files bug ... https://forums.whonix.org/t/permission-hardening/8655/16	2019-12-20 09:43:23 -05:00
Patrick Schleizer	fbe2479f48	count processed file system objects ... to be able to verify if any were "forgotten"	2019-12-20 08:54:56 -05:00
Patrick Schleizer	195ea522f5	fix	2019-12-20 08:52:14 -05:00
Patrick Schleizer	6f8231be70	debugging	2019-12-20 08:51:55 -05:00
Patrick Schleizer	ed50f98010	output	2019-12-20 08:47:22 -05:00
Patrick Schleizer	6d30e3b4a2	do not remove suid from whitelisted binaries ever ... https://forums.whonix.org/t/permission-hardening/8655/13	2019-12-20 08:13:23 -05:00
Patrick Schleizer	d5f1bd8dd2	fix mode sanity check ... no longer use seq due to issue https://forums.whonix.org/t/permission-hardening/8655/13	2019-12-20 08:02:30 -05:00
Patrick Schleizer	0ae3e689b5	comment	2019-12-20 06:35:02 -05:00
Patrick Schleizer	050f4d8b94	comment	2019-12-20 06:34:37 -05:00
Patrick Schleizer	36043fe5cc	comment	2019-12-20 06:33:41 -05:00
Patrick Schleizer	fb4254547b	comment	2019-12-20 06:32:04 -05:00
Patrick Schleizer	cca0908d9a	fix	2019-12-20 06:11:38 -05:00
Patrick Schleizer	e254b8b52d	fix	2019-12-20 06:09:17 -05:00
Patrick Schleizer	7f8b3c76de	output	2019-12-20 06:02:17 -05:00
Patrick Schleizer	071c64dc41	enable 'set -e'	2019-12-20 06:01:49 -05:00
Patrick Schleizer	b97c66707c	minor	2019-12-20 05:59:05 -05:00
Patrick Schleizer	17b4f12276	output	2019-12-20 05:58:42 -05:00
Patrick Schleizer	918cbb4e25	output	2019-12-20 05:51:25 -05:00
Patrick Schleizer	c8cf09a4cb	output	2019-12-20 05:50:16 -05:00
Patrick Schleizer	46466c12ad	parse drop-in config folder rather than only one config file	2019-12-20 05:49:11 -05:00
Patrick Schleizer	66fd31189d	improve output if set-user-id / set-group-id is set	2019-12-20 05:37:33 -05:00
Patrick Schleizer	6dd6530fa5	remove hardening-enable ... please invent package security-paranoid instead https://forums.whonix.org/t/security-hardening-tool-usr-bin-hardening-enable-by-security-misc/8609	2019-12-20 05:32:26 -05:00
Patrick Schleizer	af0f074987	remount /lib with nosuid,nodev ... https://forums.whonix.org/t/re-mount-home-and-other-with-noexec-and-nosuid-among-other-useful-mount-options-for-better-security/7707/22	2019-12-20 05:27:11 -05:00
Patrick Schleizer	a135ae9400	use must manually enable permission-hardening.service ... until development finished	2019-12-20 05:22:59 -05:00
Patrick Schleizer	fa6f1e1568	output	2019-12-20 05:19:39 -05:00
Patrick Schleizer	a26cb94bfd	globstar no longer required	2019-12-20 04:49:21 -05:00
Patrick Schleizer	c66e9abe18	comment	2019-12-20 04:48:57 -05:00
Patrick Schleizer	d1d0afff34	fix ... fso: /lib/ usr/lib/security-misc/permission-hardening: line 19: /usr/bin/stat: Argument list too long https://forums.whonix.org/t/kernel-hardening/7296/326	2019-12-20 04:48:02 -05:00
Patrick Schleizer	e74d2e4f94	output	2019-12-20 04:23:14 -05:00
Patrick Schleizer	eb86359033	refactoring	2019-12-20 04:20:05 -05:00
Patrick Schleizer	bb84fca184	refactoring	2019-12-20 04:08:46 -05:00
Patrick Schleizer	f92b414195	refactoring	2019-12-20 04:06:28 -05:00
Patrick Schleizer	4c44871e9d	comment	2019-12-20 04:02:05 -05:00
Patrick Schleizer	6876a2eaa8	comment	2019-12-20 04:01:40 -05:00
Patrick Schleizer	35c4fce61b	fix "dpkg-statoverride: warning: stripping trailing /"	2019-12-20 03:54:46 -05:00
Patrick Schleizer	9bd9012ab1	refactoring	2019-12-20 03:46:50 -05:00
Patrick Schleizer	55933f8876	refactoring	2019-12-20 03:43:36 -05:00
Patrick Schleizer	9e493a9f48	refactoring	2019-12-20 03:42:09 -05:00
Patrick Schleizer	b92a690c16	refactoring	2019-12-20 03:40:47 -05:00
Patrick Schleizer	98535e3a2b	refactoring	2019-12-20 03:39:25 -05:00
Patrick Schleizer	ecbba2fd61	refactoring	2019-12-20 03:38:39 -05:00
Patrick Schleizer	20b8a407ac	refactoring	2019-12-20 03:25:17 -05:00
Patrick Schleizer	6cd9eb44fb	refactoring	2019-12-20 03:24:07 -05:00
Patrick Schleizer	706dba104d	code simplification	2019-12-20 03:19:12 -05:00
Patrick Schleizer	01dd567f8b	fix, if fso has exactly the mode we want (not 3 instead of 4 string length), not need to reset it	2019-12-20 03:16:43 -05:00
Patrick Schleizer	4f65b0fc1e	refactoring	2019-12-20 03:13:27 -05:00
Patrick Schleizer	bfee6b60cb	comment	2019-12-20 03:11:11 -05:00
Patrick Schleizer	d64cdc1247	refactoring	2019-12-20 03:04:41 -05:00
Patrick Schleizer	7c5c65a6c1	comment	2019-12-20 03:04:13 -05:00
Patrick Schleizer	b31d8cd3fc	fix	2019-12-20 03:03:40 -05:00
Patrick Schleizer	c626290673	refactoring	2019-12-20 03:02:26 -05:00
Patrick Schleizer	d5ff1d6f28	refactoring	2019-12-20 03:00:39 -05:00
Patrick Schleizer	640ca1d24d	skip symlinks ... https://forums.whonix.org/t/kernel-hardening/7296/323?	2019-12-20 02:57:57 -05:00
Patrick Schleizer	cc8f795799	comment	2019-12-20 02:47:04 -05:00
Patrick Schleizer	4e5b222a08	comment	2019-12-20 02:43:33 -05:00
Patrick Schleizer	fa895ee11e	refactoring	2019-12-20 02:40:42 -05:00
Patrick Schleizer	2c163bf439	check string length of permission variable ... https://forums.whonix.org/t/kernel-hardening/7296/322	2019-12-20 02:39:53 -05:00
Patrick Schleizer	a89befd902	code simplification	2019-12-20 02:20:54 -05:00
Patrick Schleizer	72812da63f	comment	2019-12-20 02:16:32 -05:00
Patrick Schleizer	39a41cc27b	refactoring	2019-12-20 02:14:45 -05:00
Patrick Schleizer	2ed6452590	downgrade to info	2019-12-20 02:12:43 -05:00
Patrick Schleizer	a5e55dfcfc	quotes	2019-12-20 02:11:39 -05:00
Patrick Schleizer	3187cee4fb	output	2019-12-20 02:10:13 -05:00
Patrick Schleizer	5160b4c781	disable xtrace	2019-12-20 02:08:05 -05:00
Patrick Schleizer	27bfe95d25	add echo wrapper	2019-12-20 02:07:49 -05:00
Patrick Schleizer	a6988f3fb8	output	2019-12-20 02:06:31 -05:00
Patrick Schleizer	1819577b88	fix	2019-12-20 02:04:34 -05:00
Patrick Schleizer	278c60c5a0	exit non-zero if some line cannot be parsed ... therefore make systemd notice this therefore allow the sysadmin to notice this	2019-12-20 02:01:36 -05:00
Patrick Schleizer	66bcba8313	improve character whitelisting	2019-12-20 01:58:35 -05:00
Patrick Schleizer	8f14e808a9	send error messages to stderr	2019-12-20 01:32:49 -05:00
Patrick Schleizer	d8c9fac2e5	output	2019-12-20 01:32:08 -05:00
Patrick Schleizer	f19abaf627	refactoring	2019-12-20 01:31:37 -05:00
madaidan	3c2ca0257f	Support for removing SUID bits	2019-12-19 17:01:08 +00:00
Patrick Schleizer	4ca9fc5920	fix	2019-12-16 03:53:10 -05:00
Patrick Schleizer	f68efd53cf	remount /sys/kernel/security with nodev,nosuid[,noexec] ... as suggested by @madaidan http://forums.whonix.org/t/apparmor-for-complete-system-including-init-pid1-systemd-everything-full-system-mac-policy/8339/238	2019-12-16 03:52:09 -05:00
Patrick Schleizer	300f010fc2	increase priority of pam-abort-on-locked-password-security-misc ... since it has its own user help output so it shows before pam tally2 info to avoid duplicate non-applicable help text	2019-12-12 09:29:00 -05:00
Patrick Schleizer	729fa26eca	use pam_acccess only for /etc/pam.d/login ... remove "Allow members of group 'ssh' to login." remove "+:ssh:ALL EXCEPT LOCAL"	2019-12-12 09:00:08 -05:00
Patrick Schleizer	b72eb30056	quotes	2019-12-09 02:32:05 -05:00
Patrick Schleizer	c258376b7e	use read (built-in) rather than awk (external)	2019-12-09 02:31:10 -05:00
Patrick Schleizer	02165201ab	read -r; refactoring ... as per https://mywiki.wooledge.org/BashFAQ/001	2019-12-09 02:23:43 -05:00