Commit graph

248 commits

Author SHA1 Message Date
rndmh3ro
e28e09cd0e Prettified Code! 2022-07-07 07:02:50 +00:00
balu
488ff6a7c3
Harden mountpoints (#531)
* first testing with tasks and variables

Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* update variables for dir options

Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* updated permissions and defaults

Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* fix home dir permissions

Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* updated tasks with useful variables

Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* reorder tasks. first remount, then manage fstab and fix permissions on directories. Renaming task names with mountpoints (slashes)

Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* shorten tasks with list items

Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* change defaults for /boot directory, because its a bad behaviour, if ansible changes boot entries with a default value

Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* Update documentation for new parameters to manage mountpoints

Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* Update roles/os_hardening/tasks/minimize_access.yml

Co-authored-by: Sebastian Gumprich <rndmh3ro@users.noreply.github.com>
Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* Update roles/os_hardening/tasks/minimize_access.yml

Co-authored-by: Sebastian Gumprich <rndmh3ro@users.noreply.github.com>
Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* Fix state on every new task

Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* loop instead of list

Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* testing remount with register

Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* add remounts with loop over all changed folders

Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* testing and solving trouble with variable names

Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* optimize default permissions for var-log-audit

Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* optimize default permissions for var-log-audit

Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* change to new optimizied permissions of var-log-audit

Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* fix some defaults in fstab to configure as mounted

Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* add stat and check, if boot folder exists

Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

Co-authored-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>
Co-authored-by: Sebastian Gumprich <rndmh3ro@users.noreply.github.com>
2022-07-07 09:02:25 +02:00
Sebastian Gumprich
3f50b6e94b update os-hardening readme with os_ignore_users
fixes #542

Signed-off-by: Sebastian Gumprich <sebastian.gumprich@t-systems.com>
2022-05-30 13:29:45 +02:00
Martin Schurz
46b436fc9b update description of ssh_client_alive_count
Signed-off-by: Martin Schurz <Martin.Schurz@t-systems.com>
2022-05-04 13:48:38 +02:00
abejotaR
8edd650135
change permissions of the tmout.sh file (#520)
Co-authored-by: Abraham Rebori <abraham.rebori@nexa.com.uy>
2022-02-21 14:01:19 +01:00
rndmh3ro
468e4674b8 debian 9's nginx doesnt support tls1.3
while this could be better solved by checking what nginx version is used, debian9 is eol'd in 4 months. if there will be again a need to check for nginx versions, we'll add it then

Signed-off-by: rndmh3ro <github@gumpri.ch>
2022-02-21 10:02:54 +01:00
Sebastian Gumprich
2ba40b0891
move sysctls to debian specific vars (#524)
* fix ansible-lint issue

https://github.com/ansible-community/ansible-lint/issues/1795
Signed-off-by: rndmh3ro <github@gumpri.ch>

* move 2 sysctls to debian specific

Signed-off-by: rndmh3ro <github@gumpri.ch>

* fix ansible-lint issue

https://github.com/ansible-community/ansible-lint/issues/1795
Signed-off-by: rndmh3ro <github@gumpri.ch>

* add arch linux sysctls

* simplify sysctl settings

Signed-off-by: rndmh3ro <github@gumpri.ch>

* ove overwrite to the bottom to let it acutally overwrite something

Signed-off-by: rndmh3ro <github@gumpri.ch>

* fix typo

Signed-off-by: rndmh3ro <github@gumpri.ch>
2022-02-18 15:30:32 +01:00
lbayerlein
1a97c6cf87
new feautre tmout in a new pr (#516)
Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

Co-authored-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>
2021-12-16 11:39:24 +01:00
Sebastian Gumprich
8f22ce788c
Feature coredump (#513)
* restructure limits-tasks

* disable coredumps in tests

* use notify-task for systemd-reload

Signed-off-by: rndmh3ro <github@gumpri.ch>

* add notify to another task

Signed-off-by: rndmh3ro <github@gumpri.ch>

* rm obsolete task and rename handler

Signed-off-by: rndmh3ro <github@gumpri.ch>
2021-12-10 22:10:14 +01:00
lbayerlein
bb8e3e375e
add feature to disable coredump to limit task (#511)
Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

Co-authored-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>
2021-12-08 14:25:49 +01:00
alegrey91
8805d9c14a fix: change hidepid mount task state to mounted 2021-11-29 22:37:21 +01:00
schurzi
ad43f908df
prettify nginx options (#509)
Signed-off-by: Martin Schurz <Martin.Schurz@t-systems.com>
2021-11-29 10:25:43 +01:00
schurzi
cb3574ed56
Merge pull request #501 from ksaadDE/patch-3
Updated dh_params to 4096
2021-11-28 11:38:39 +01:00
duffn
1d25d4185c
Update nginx_add_header README to match default (#506)
Signed-off-by: Nicholas Duffy <3457341+duffn@users.noreply.github.com>
2021-11-26 11:31:47 +01:00
tekicat
88893a5d4a
Fix duplicate sysctl config (#505)
Signed-off-by: tekicat <tekicat@amibee.com>
Signed-off-by: gk <ganesh.jayachandran@revolut.com>
Signed-off-by: Tekicat <tekicat@amibee.com>
2021-11-26 11:30:50 +01:00
Karim
f84ff572ac
Updated dh_params to 4096
Updated dh_params to 4096
2021-11-15 19:02:59 +00:00
Karim
96d6b47912 Update main.yml
TLSv1.3 should be supported (+security) and soon as possible should be TLSv1.2 EOL.
2021-11-15 19:23:47 +01:00
René Scheibe
bbe4ce16a1
Add whitelist option for yum repository files (#487)
Files in this whitelist should not be altered.

Currently this is only relevant for enforcing the gpg check.

Signed-off-by: René Scheibe <rene.scheibe@gmail.com>
2021-11-07 11:56:59 +01:00
lbayerlein
1bf31a197b
disable ctrl-alt-del key combination (#496)
* new function to disable ctrl-alt-del to avooid reboot virtual machines f.e.

Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* fix variable documentation for ctrlaltdel

Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* added ctrlaltdel variable for molecule

Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* optimize ctrlaltdel function with a 'when' query. thanks to rndmh3ro

Signed-off-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>

* fix typo in new file

Co-authored-by: Ludwig Bayerlein <bayerlein@bayerlein-networks.com>
Co-authored-by: Sebastian Gumprich <rndmh3ro@users.noreply.github.com>
2021-10-28 10:31:58 +02:00
schurzi
08b0fd14f4
Merge pull request #494 from dev-sec/sysctl-34
implement sysctl-34 - link protection settings
2021-10-24 11:21:14 +02:00
schurzi
ff37289879
Merge pull request #493 from dev-sec/rndmh3ro-patch-1
update minimum ansible version for roles
2021-10-24 11:09:37 +02:00
Sebastian Gumprich
9f372c285c
Update roles/os_hardening/defaults/main.yml
Co-authored-by: schurzi <Martin.Schurz@t-systems.com>
2021-10-24 10:59:49 +02:00
Claudius Heine
384c097f8a
feat(os_hardening): extend file permission tasks to cover more files (#489)
The tasks `Change shadow ownership to root and mode to 0600` and `Change
passwd ownership to root and mode to 0644` only handle
`/etc/shadow` and `/etc/passwd` respectively. But there multiple
adjacent files that should be handled with these rules as well:

- `/etc/gshadow`
- `/etc/shadow-`
- `/etc/gshadow-`
- `/etc/group`
- `/etc/shadow-`
- `/etc/group-`

This change adds those files to the rules, so that permissions are
handled in the same way.

Closes: #488

Signed-off-by: Claudius Heine <ch@denx.de>
2021-10-21 09:51:20 +02:00
rndmh3ro
346b064682 implement sysctl-34 - link protection settings
Signed-off-by: rndmh3ro <github@gumpri.ch>
2021-10-20 20:59:49 +02:00
Sebastian Gumprich
be0d501bc8 update minimum ansible version for roles
fixes #407

Signed-off-by: rndmh3ro <github@gumpri.ch>
2021-10-20 20:42:05 +02:00
Sina Tak Tehrani
5debcc0c6f
fix filter error in ansible.builtin.file mode parameter (#486)
* fix filter error in ansible.builtin.file mode parameter

* Change cinc supermarket

* fix link to baseline

* fix typo

Co-authored-by: Sebastian Gumprich <rndmh3ro@users.noreply.github.com>
2021-10-18 20:55:24 +02:00
ReinerNippes
e819f89ccb
ssh_allow_tcp_forwarding is not a boolean (#480)
Changed the comment to "Set to 'yes', 'no', 'local', 'all' or 'remote' to allow TCP Forwarding"
2021-08-30 15:46:03 +02:00
Roger Meier
8fdb4e55b8
chore(ssh_hardening): set min_ansible_version to >=2.9.10 (#479) 2021-08-28 15:21:59 +02:00
rndmh3ro
8ff3d73bbf Prettified Code! 2021-08-25 10:58:16 +00:00
123quhiwiwk
062dd3f092
Use log_error/datadir from database settings instead of default variable (#478)
Signed-off-by: 123quhiwiwk <70281681+123quhiwiwk@users.noreply.github.com>
2021-08-25 12:57:46 +02:00
123quhiwiwk
4671a32062
Execute check of error logfile permissions only when log_error is defined (#477)
Signed-off-by: 123quhiwiwk <70281681+123quhiwiwk@users.noreply.github.com>
2021-08-24 09:41:55 +02:00
Shawn Wilsher
3b33e0a7aa
[mysql_hardening] Setup defaults for MySQL on FreeBSD (#474)
Signed-off-by: Shawn Wilsher <656602+sdwilsh@users.noreply.github.com>
2021-08-20 13:00:12 +02:00
schurzi
d7eb00f4b7
Merge pull request #475 from dev-sec/ansible_lint
use Ansible lint in separate task
2021-08-15 22:53:41 +02:00
rndmh3ro
cf17f80374 skip linting on special task
Signed-off-by: rndmh3ro <github@gumpri.ch>
2021-08-15 20:16:56 +02:00
Shawn Wilsher
9ab06a5e06
[mysql_hardening] Allow setting the mysql_distribution (#473)
* [mysql_hardening] Allow setting the mysql_distribution

On some operating systems, the package for MySQL is not `mysql-server`,
and so the default check for this will not yield the correct result.
This change adds an escape hatch by letting the user set
`mysql_distribution`.  Additionally, it verifies that it is set to a
legal value if the user has set it.

Closes #472

Signed-off-by: Shawn Wilsher <656602+sdwilsh@users.noreply.github.com>

* Update roles/mysql_hardening/tasks/main.yml

Co-authored-by: Sebastian Gumprich <rndmh3ro@users.noreply.github.com>
2021-08-15 20:03:07 +02:00
Filippo Tessarotto
3a73f6c46a
SSH Hardening: backtick typo (#471) 2021-08-06 13:41:05 +02:00
Paweł Krawczyk
66bd1f0aec
Add CVE-2021-33909 mitigations (#466)
* Add CVE-2021-33909 mitigations

kernel.unprivileged_bpf_disabled: 1
kernel.unprivileged_userns_clone: 0

The first one is also used by Tails.

Signed-off-by: Paweł Krawczyk <616047+kravietz@users.noreply.github.com>

* Clean up whitespaces

Signed-off-by: Paweł Krawczyk <616047+kravietz@users.noreply.github.com>
2021-07-22 16:32:41 +02:00
Maik Stübner
714a34fa55
Allow configuration of password remember in pam (#467)
* Add Configuration of password remember
and set default to 60

see Telekom 2021.07-01 SoC 3.01 Req 25 and SoC 3.65 Req46

Signed-off-by: Maik Stuebner <Maik.Stuebner@t-systems.com>

* set default for password remember back to 5

Signed-off-by: Maik Stuebner <Maik.Stuebner@t-systems.com>

* readme default for password remember back to 5

Signed-off-by: Maik Stuebner <Maik.Stuebner@t-systems.com>
2021-07-22 10:18:01 +02:00
Leo Gallucci
585f1dc227
Add SUB_UID_MIN/MAX/COUNT, SUB_GID_MIN/MAX/COUNT (#463)
* add SUB_UID_MIN/MAX/COUNT, SUB_GID_MIN/MAX/COUNT

Similar reason as #461

> If /etc/subuid exists, the commands useradd and newusers (unless the user already have subordinate user IDs)
> allocate SUB_UID_COUNT unused user IDs from the range SUB_UID_MIN to SUB_UID_MAX for each new user.
> The default values for SUB_UID_MIN, SUB_UID_MAX, SUB_UID_COUNT are respectively 100000, 600100000 and 65536.

Signed-off-by: Leo Gallucci <elgalu3@gmail.com>

* document SUB_UID_MIN/MAX/COUNT, etc

Signed-off-by: Leo Gallucci <elgalu3@gmail.com>
2021-07-16 09:41:37 +02:00
Leo Gallucci
f92d193d3d
add os_auth_uid_max, os_auth_gid_max (#461)
Signed-off-by: Leo Gallucci <elgalu3@gmail.com>
2021-07-12 15:32:02 +02:00
蚯蚓
27c6b93d04
add "when" statements in hardening.yml(#453) (#455)
* add "when" statements in hardening.yml(#453)

Signed-off-by: jqiuyin <943571574@qq.com>

* add "when" statements in hardening.yml(#453)

Signed-off-by: jqiuyin <943571574@qq.com>

* add "when" statements in hardening.yml(#453)

Signed-off-by: jqiuyin <943571574@qq.com>
2021-07-01 11:25:14 +02:00
Sebastian Gumprich
4ca4f09453
Cleanup old OS-support and simplify vars (#458)
* use os_family instead of distribution for debian systems

Signed-off-by: rndmh3ro <github@gumpri.ch>

* remove tasks related to rhel6 or debian 6

Signed-off-by: rndmh3ro <github@gumpri.ch>
2021-06-30 13:09:46 +02:00
Sebastian Gumprich
72ec118a6d
add rocky linux 8 tests and make sure that all relevant tasks are execd (#457)
* add rocky linux 8 tests and make sure that all relevant tasks are executed

Signed-off-by: rndmh3ro <github@gumpri.ch>

* fix missing quote

Signed-off-by: rndmh3ro <github@gumpri.ch>
2021-06-30 13:09:12 +02:00
Sebastian Gumprich
9cefddd949
make sha rounds configurable and increase no of rounds (#452)
* make sha rounds configurable and increase no of rounds

Fixes #365

Signed-off-by: rndmh3ro <github@gumpri.ch>

* Prettified Code!

* make password rounds configurable in pam system-auth

Signed-off-by: rndmh3ro <github@gumpri.ch>

* change wording of sha rounds documentation

Co-authored-by: schurzi <Martin.Schurz@t-systems.com>

Co-authored-by: schurzi <Martin.Schurz@t-systems.com>
2021-06-30 10:41:59 +02:00
Sherwin Daganato
350b5891d1
Add support for Rocky Linux 8 (#454)
Signed-off-by: Sherwin Daganato <sherwin@daganato.com>
2021-06-30 10:12:07 +02:00
schurzi
29e10e5c3b
add tag always to os dependent vars task (#456)
when our collection is used with tags, the os dependent variables are
not resolved. This task should run every time, so the behaviour is
correct.

Signed-off-by: Martin Schurz <Martin.Schurz@t-systems.com>
2021-06-29 13:07:25 +02:00
Colin Adler
8cbeeff501
Use include_tasks for os_hardening/main.yml (#451)
When `import_tasks` is used, the task `Fetch OS dependent variables`
always runs, even when excluded by an upstream tag.

When `Fetch OS dependent variables` runs while excluded via tags, it
will always fail with the following.

```
fatal: [alpha]: FAILED! => {"msg": "No file was found when using first_found. Use errors='ignore' to allow this task to be skipped if no files are found"}
```

This brings os_hardening's main.yml in line with ssh_hardening's
main.yml, which doesn't have this issue.

Signed-off-by: Colin Adler <colin@coder.com>
2021-06-23 11:28:08 +02:00
Sebastian Gumprich
41cd8485cb
enable ipv6 globally (#450)
Signed-off-by: Sebastian Gumprich <sebastian.gumprich@t-systems.com>
2021-05-26 20:13:45 +02:00
Lars Düsing
0beeb3ee03 Removed sysctl that tries to disable IPv6. #416
Signed-off-by: Lars Düsing <lars@camelotsweb.de>
2021-05-24 13:33:38 +02:00
rndmh3ro
07a0943c5a Prettified Code! 2021-04-30 12:50:12 +00:00