1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
|
# Firejail
[](https://gitlab.com/Firejail/firejail_ci/pipelines/)
[](https://github.com/netblue30/firejail/actions?query=workflow%3ACodeQL)
[](https://github.com/netblue30/firejail/actions?query=workflow%3A%22Build+CI%22)
[](https://repology.org/project/firejail/versions)
Firejail is a SUID sandbox program that reduces the risk of security breaches by restricting
the running environment of untrusted applications using Linux namespaces, seccomp-bpf
and Linux capabilities. It allows a process and all its descendants to have their own private
view of the globally shared kernel resources, such as the network stack, process table, mount table.
Firejail can work in a SELinux or AppArmor environment, and it is integrated with Linux Control Groups.
Written in C with virtually no dependencies, the software runs on any Linux computer with a 3.x kernel
version or newer. It can sandbox any type of processes: servers, graphical applications, and even
user login sessions. The software includes sandbox profiles for a number of more common Linux programs,
such as Mozilla Firefox, Chromium, VLC, Transmission etc.
The sandbox is lightweight, the overhead is low. There are no complicated configuration files to edit,
no socket connections open, no daemons running in the background. All security features are
implemented directly in Linux kernel and available on any Linux computer.
<table><tr>
<td>
<a href="https://odysee.com/@netblue30:9/firefox:c" target="_blank">
<img src="https://thumbs.odycdn.com/acf4b1c66737feb97640fb1d28a7daa6.png"
alt="Advanced Browser Security" width="240" height="142" border="10" /><br/>Advanced Browser Security</a>
</td>
<td>
<a href="https://odysee.com/@netblue30:9/nonet:7" target="_blank">
<img src="https://thumbs.odycdn.com/5be2964201c31689ee8f78cb9f35e89a.png"
alt="How To Disable Network Access" width="240" height="142" border="10" /><br/>How To Disable Network Access</a>
</td>
<td>
<a href="https://odysee.com/@netblue30:9/divested:2" target="_blank">
<img src="https://thumbs.odycdn.com/f30ece33a6547af9ae48244f4ba73028.png"
alt="Deep Dive" width="240" height="142" border="10" /><br/>Deep Dive</a>
</td>
</tr></table>
Project webpage: https://firejail.wordpress.com/
IRC: https://web.libera.chat/#firejail
Download and Installation: https://firejail.wordpress.com/download-2/
Features: https://firejail.wordpress.com/features-3/
Documentation: https://firejail.wordpress.com/documentation-2/
FAQ: https://github.com/netblue30/firejail/wiki/Frequently-Asked-Questions
Wiki: https://github.com/netblue30/firejail/wiki
GitLab-CI status: https://gitlab.com/Firejail/firejail_ci/pipelines/
Video Channel: https://odysee.com/@netblue30:9?order=new
Backup Video Channel: https://www.bitchute.com/profile/JSBsA1aoQVfW/
## Security vulnerabilities
We take security bugs very seriously. If you believe you have found one, please report it by emailing us at netblue30@protonmail.com
## Installing
### Debian
Debian stable (bullseye): We recommend to use the [backports](https://packages.debian.org/bullseye-backports/firejail) package.
### Ubuntu
For Ubuntu 18.04+ and derivatives (such as Linux Mint), users are **strongly advised** to use the [PPA](https://launchpad.net/~deki/+archive/ubuntu/firejail).
How to add and install from the PPA:
```sh
sudo add-apt-repository ppa:deki/firejail
sudo apt-get update
sudo apt-get install firejail firejail-profiles
```
Reason: The firejail package for Ubuntu 20.04 has been left vulnerable to CVE-2021-26910 for months after a patch for it was posted on Launchpad:
* [firejail version in Ubuntu 20.04 LTS is vulnerable to CVE-2021-26910](https://bugs.launchpad.net/ubuntu/+source/firejail/+bug/1916767)
See also <https://wiki.ubuntu.com/SecurityTeam/FAQ>:
> What software is supported by the Ubuntu Security team?
>
> Ubuntu is currently divided into four components: main, restricted, universe
> and multiverse. All binary packages in main and restricted are supported by
> the Ubuntu Security team for the life of an Ubuntu release, while binary
> packages in universe and multiverse are supported by the Ubuntu community.
Additionally, the PPA version is likely to be more recent and to contain more profile fixes.
See the following discussions for details:
* [Should I keep using the version of firejail available in my distro repos?](https://github.com/netblue30/firejail/discussions/4666)
* [How to install the latest version on Ubuntu and derivatives](https://github.com/netblue30/firejail/discussions/4663)
### Other
Firejail is included in a large number of Linux distributions.
You can also install one of the [released packages](http://sourceforge.net/projects/firejail/files/firejail), or clone Firejail’s source code from our Git repository and compile manually:
`````
$ git clone https://github.com/netblue30/firejail.git
$ cd firejail
$ ./configure && make && sudo make install-strip
`````
On Debian/Ubuntu you will need to install git and gcc compiler. AppArmor
development libraries and pkg-config are required when using `--enable-apparmor`
./configure option:
`````
$ sudo apt-get install git build-essential libapparmor-dev pkg-config gawk
`````
For `--selinux` option, add libselinux1-dev (libselinux-devel for Fedora).
Detailed information on using firejail from git is available on the [wiki](https://github.com/netblue30/firejail/wiki/Using-firejail-from-git).
## Running the sandbox
To start the sandbox, prefix your command with `firejail`:
`````
$ firejail firefox # starting Mozilla Firefox
$ firejail transmission-gtk # starting Transmission BitTorrent
$ firejail vlc # starting VideoLAN Client
$ sudo firejail /etc/init.d/nginx start
`````
Run `firejail --list` in a terminal to list all active sandboxes. Example:
`````
$ firejail --list
1617:netblue:/usr/bin/firejail /usr/bin/firefox-esr
7719:netblue:/usr/bin/firejail /usr/bin/transmission-qt
7779:netblue:/usr/bin/firejail /usr/bin/galculator
7874:netblue:/usr/bin/firejail /usr/bin/vlc --started-from-file file:///home/netblue/firejail-whitelist.mp4
7916:netblue:firejail --list
`````
## Desktop integration
Integrate your sandbox into your desktop by running the following two commands:
`````
$ firecfg --fix-sound
$ sudo firecfg
`````
The first command solves some shared memory/PID namespace bugs in PulseAudio software prior to version 9.
The second command integrates Firejail into your desktop. You would need to logout and login back to apply
PulseAudio changes.
Start your programs the way you are used to: desktop manager menus, file manager, desktop launchers.
The integration applies to any program supported by default by Firejail. There are about 250 default applications
in current Firejail version, and the number goes up with every new release.
We keep the application list in [/etc/firejail/firecfg.config](https://github.com/netblue30/firejail/blob/master/src/firecfg/firecfg.config) file.
## Security profiles
Most Firejail command line options can be passed to the sandbox using profile files.
You can find the profiles for all supported applications in [/etc/firejail](https://github.com/netblue30/firejail/tree/master/etc) directory.
If you keep additional Firejail security profiles in a public repository, please give us a link:
* https://github.com/chiraag-nataraj/firejail-profiles
* https://github.com/triceratops1/fe
Use this issue to request new profiles: [#1139](https://github.com/netblue30/firejail/issues/1139)
You can also use this tool to get a list of syscalls needed by a program: [contrib/syscalls.sh](contrib/syscalls.sh).
We also keep a list of profile fixes for previous released versions in [etc-fixes](https://github.com/netblue30/firejail/tree/master/etc-fixes) directory.
## Latest released version: 0.9.72
## Current development version: 0.9.73
### private-etc rework
`````
--private-etc, --private-etc=file,directory
The files installed by --private-etc are copies of the original
system files from /etc directory. By default, the command
brings in a skeleton of files and directories used by most con‐
sole tools:
$ firejail --private-etc dig debian.org
For X11/GTK/QT/Gnome/KDE programs add GUI group as a parameter.
Example:
$ firejail --private-etc=GUI,python* gimp
/etc/python* directories are not part of the generic GUI group.
These directories are reuqired by Gimp plugin system. File glob‐
bing is supported.
For games, add GAMES group:
$ firejail --private-etc=GUI,GAMES warzone2100
Sound and networking files are included automatically, unless
--nosound or --net=none are specified. Files for encrypted
TLS/SSL protocol are in TLS-CA group.
$ firejail --private-etc=TLS-CA,wgetrc wget https://debian.org
Note: The easiest way to extract the list of /etc files accessed
by your program is using strace utility:
$ strace /usr/bin/transmission-qt 2>&1 | grep open | grep etc
`````
We keep the list of groups in [src/include/etc_groups.h](https://github.com/netblue30/firejail/blob/master/src/include/etc_groups.h)
Discussion: https://github.com/netblue30/firejail/discussions/5610
### Profile Statistics
A small tool to print profile statistics. Compile and install as usual. The tool is installed in /usr/lib/firejail directory.
Run it over the profiles in /etc/profiles:
```
$ /usr/lib/firejail/profstats /etc/firejail/*.profile
No include .local found in /etc/firejail/noprofile.profile
Warning: multiple caps in /etc/firejail/transmission-daemon.profile
Stats:
profiles 1209
include local profile 1208 (include profile-name.local)
include globals 1181 (include globals.local)
blacklist ~/.ssh 1079 (include disable-common.inc)
seccomp 1096
capabilities 1202
noexec 1087 (include disable-exec.inc)
noroot 1003
memory-deny-write-execute 272
restrict-namespaces 958
apparmor 753
private-bin 704
private-dev 1058
private-etc 550
private-lib 71
private-tmp 932
whitelist home directory 585
whitelist var 870 (include whitelist-var-common.inc)
whitelist run/user 1176 (include whitelist-runuser-common.inc
or blacklist ${RUNUSER})
whitelist usr/share 640 (include whitelist-usr-share-common.inc
net none 410
dbus-user none 679
dbus-user filter 141
dbus-system none 851
dbus-system filter 12
```
|
