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eb8535fe87
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419 Commits

Author SHA1 Message Date
Patrick Schleizer
eb8535fe87
renamed: usr/bin/disabled-by-security-misc -> bin/disabled-by-security-misc 2022-07-07 15:48:39 -04:00
Raja Grewal
780dc8eec9
replace /bin/false -> /bin/disabled-by-security-misc 2022-07-08 04:11:25 +10:00
Patrick Schleizer
69af8be7b8
drop_caches before and after sdmem 2022-07-02 19:10:55 -04:00
Patrick Schleizer
67bdd58bf2
sync 2022-07-02 19:07:06 -04:00
Patrick Schleizer
973f117aa6
wipe RAM at shutdown: Ensure any remaining disk cache is erased by Linux' memory poisoning 
by running:
`echo 3 > /proc/sys/vm/drop_caches`

Inspired by Tails:
https://gitlab.tails.boum.org/tails/tails/-/blob/master/config/chroot_local-includes/usr/local/lib/initramfs-pre-shutdown-hook
 2022-07-02 18:12:36 -04:00
Patrick Schleizer
95187bd357
fix 2022-07-02 17:21:33 -04:00
Patrick Schleizer
148a050468
fix 2022-07-02 16:03:45 -04:00
Patrick Schleizer
82e7863d5b
improvement 2022-07-02 16:02:28 -04:00
Patrick Schleizer
1144b39e5e
debugging 2022-07-02 15:50:59 -04:00
Patrick Schleizer
c29b21c08a
output 2022-07-02 15:45:19 -04:00
Patrick Schleizer
d34fe21963
fix 2022-07-02 15:32:42 -04:00
Patrick Schleizer
32fdcf522b
- introduce wiperam=skip kernel parameter to skip wipe ram 
- introduce `wiperam=force` kernel parameter to force wipe ram inside VMs
 2022-06-30 14:47:45 -04:00
Patrick Schleizer
036f518ddc
improvement 2022-06-30 13:56:29 -04:00
Patrick Schleizer
0e2fae2b69
skip ram wipe inside VMs 
https://forums.whonix.org/t/is-ram-wipe-possible-inside-whonix-cold-boot-attack-defense/5596/40
 2022-06-30 13:50:18 -04:00
Patrick Schleizer
e06405c7be
undo 2022-06-29 16:56:16 -04:00
Patrick Schleizer
1b97d9cb76
fix 2022-06-29 16:30:31 -04:00
Patrick Schleizer
92c543e71f
output 2022-06-29 16:24:52 -04:00
Patrick Schleizer
d4161b2748
output 2022-06-29 16:23:42 -04:00
Patrick Schleizer
1ce7b27297
improvement 2022-06-29 16:23:12 -04:00
Patrick Schleizer
8b584c570a
lintian 2022-06-29 16:06:22 -04:00
Patrick Schleizer
f5e0c1742a
credits 2022-06-29 16:02:05 -04:00
Patrick Schleizer
42e24f3c24
update file names 2022-06-29 15:54:49 -04:00
Patrick Schleizer
52aaac9b6d
rename 2022-06-29 15:53:52 -04:00
Patrick Schleizer
619bb3cf4d
rename 2022-06-29 15:53:24 -04:00
Patrick Schleizer
2a8504cf1b
move 2022-06-29 15:51:14 -04:00
Patrick Schleizer
af8b211c23
improvements 2022-06-29 15:50:20 -04:00
Patrick Schleizer
e9cd5d934b
copyright 2022-06-29 15:24:27 -04:00
Patrick Schleizer
1c51d15649
lintian 2022-06-29 15:23:53 -04:00
Patrick Schleizer
9ab81d4581
do not power off too fast so wipe ram messages can be read 2022-06-29 15:22:00 -04:00
Patrick Schleizer
19439033de
copyright 2022-06-29 15:19:56 -04:00
Patrick Schleizer
fc202ede16
delete no longer required usr/lib/dracut/modules.d/40sdmem-security-misc/README.md 2022-06-29 15:18:28 -04:00
Patrick Schleizer
6d3a08a936
improvements 2022-06-29 15:17:40 -04:00
Patrick Schleizer
6eba53767f
lintian 2022-06-29 14:17:52 -04:00
Patrick Schleizer
8a072437cc
ram wipe on shutdown: fix, added need_shutdown hook 
Otherwise dracut does not run on shutdown.

Without `need_shutdown` file `/run/initramfs/.need_shutdown` does not get created.
And without that file `/usr/lib/dracut/dracut-initramfs-restore`,
which itself is started by `/lib/systemd/system/dracut-shutdown.service` does nothing.
 2022-06-29 14:13:30 -04:00
Patrick Schleizer
924077e04c
verbose 2022-06-29 13:02:53 -04:00
Patrick Schleizer
db301dfd7f
comment 2022-06-29 13:02:39 -04:00
Patrick Schleizer
73d2ada0de
comment 2022-06-29 13:02:01 -04:00
Patrick Schleizer
295811a88f
improvements 2022-06-29 11:14:52 -04:00
Patrick Schleizer
cfae7de6a8
lintian 2022-06-29 09:58:37 -04:00
Patrick Schleizer
024d52a67e
improve usr/lib/dracut/modules.d/40sdmem-security-misc/module-setup.sh 2022-06-29 09:52:53 -04:00
Patrick Schleizer
29253004b6
minor 2022-06-29 09:38:18 -04:00
Patrick Schleizer
6f19af1542
add shebang /bin/sh 
to fix lintian warning
security-misc: executable-not-elf-or-script usr/lib/dracut/modules.d/40sdmem-security-misc/wipe.sh
 2022-06-29 09:35:08 -04:00
Patrick Schleizer
38cdf2722b
- Wipe LUKS Disk Encryption Key for Root Disk from RAM during Shutdown to defeat Cold Boot Attacks 
- Confirm in console output if encrypted mounts (root disk) is unmounted. (Because that is a pre-condition for wiping the LUKS full disk encryption key from RAM.)

Thanks to @friedy10!

https://github.com/friedy10/dracut/tree/master/modules.d/40sdmem

https://forums.whonix.org/t/is-ram-wipe-possible-inside-whonix-cold-boot-attack-defense/5596
 2022-06-29 09:32:55 -04:00
Patrick Schleizer
d7dd188651
remove unicode 2022-06-08 09:27:02 -04:00
Patrick Schleizer
55d16e1602
remove unicode 2022-06-08 09:04:03 -04:00
Kuri Schlarb
2bdda9d0a0
permssion-hardening: Do not skip config file lines without trailing newline (ancient bash bug) 2022-06-07 08:18:05 +00:00
Kuri Schlarb
9fd8e1c9b0
permission-hardening: Fix issue with pipelining failures causing incorrect user/group lookup results 2022-06-07 08:03:56 +00:00
Patrick Schleizer
2d37e3a1af
copyright 2022-05-20 14:46:38 -04:00
Patrick Schleizer
7651308787
Merge pull request #103 from 0xC0ncord/bugfix/selinuxfs_restrictions 
hide-hardware-info: re-enable restrictions on sysfs when using SELinux
 2022-05-19 19:39:42 -04:00
Patrick Schleizer
bb0307290b
update link 2022-04-16 14:18:35 -04:00