Questions tagged [pkexec]
pkexec allows an authorized user to execute PROGRAM as another user. If username is not specified, then the program will be executed as the administrative super user, root.
22
questions
0
votes
1
answer
160
views
Why pkexec does't change user in terminal?
I am trying to run desktop shortcut as root user, willing to see password prompt on opening shortcut.
pkexec does the thing, but it doesn't change user - either i run it from terminal - it always give ...
- 133
1
vote
1
answer
97
views
Should I worry if 'pkexec' is in a cPanel user's /home/virtfs (CVE-2021-4034)?
The recent security bug CVE-2021-4034 in Linux involves /usr/bin/pkexec. Following media reports (zdnet, etc.) I changed its permission, but also found this file:
/home/virtfs/foo/usr/bin/pkexec for ...
- 131
0
votes
1
answer
205
views
pkexec with >> directing output to file
If I try
pkexec echo -e '\nwl2k something\n' >> /etc/ax25/axports
in terminal to have a user add a line to a file, I get a
bash: /etc/ax25/axports: Permission denied
How do I make it so the ...
- 56
3
votes
5
answers
1k
views
Where is sudo hiding my root's .Xauthority data?
I just noticed something peculiar about how sudo handles the .Xauthority file:
sudo xauth add $(xauth list | tail -1)
user@server: sudo xauth info
Authority file: /root/.xauthYZ21Nt
File new: ...
- 7,204
3
votes
1
answer
867
views
Permissions of all files and directories in /usr
Oh my.. I just did a terrible mistake: chown -R root:root /usr. Mea [maxima] culpa..
I fixed sudo and pkexec already, but I want to be sure, there is no "sleeping" issue waiting on me in the ...
1
vote
1
answer
432
views
pkexec shows in command line instead of GUI pop-up [closed]
I just hopped to Pop!_os yesterday and pkexec executes in terminal.
It also ran into the error:
polkit-agent-helper-1: error response to PolicyKit daemon: GDBus.Error:org.freedesktop.PolicyKit1.Error....
- 21
0
votes
1
answer
2k
views
How to recover from accidental chmod 777 on /etc/sudoers
I am having a problem with an install of retropie on a raspberry pi where I have accidentally locked out the sudo command.
I am about to just re-image my pi and start over unless someone can help me ...
- 1
0
votes
1
answer
428
views
Run sudo Exec in .desktop via pkexec: Qt Error
I have a configuration in virtualbox that requires me to run the application with sudo privileges. I have been editing the .desktop file to run with sudo (note a simply changing the Exec variable to ...
- 107
7
votes
2
answers
3k
views
sudo equivalent in systemd
how to force "machinectl shell" or systemd-run to ask for password in terminal instead of dialog window?
I can run a command as root using:
machinectl shell --uid=root --setenv='DISPLAY=:1.0'...
- 432
2
votes
1
answer
293
views
Opening .jar files with `pkexec` and using Desktop Entries to run commands
I am writing a bash script that automates installation of TLauncher (Minecraft launcher) and basic dependency management on USBs running Lubuntu 18.04.
Part of the bash script creates a desktop ...
- 21
-1
votes
1
answer
1k
views
Why I get permission denied output why I run, pkexec /opt/lampp/manager-linux-x64.run ? Is it normal?
I was following a link to add Xampp server in "Show all application" section where normally we can see all GUI apps installed.
But it's different in case of Xampp. We have to do things manually.
So ...
- 139
1
vote
0
answers
218
views
Linux - How to distribute as portable a root-only GUI application
With portable i mean an application that can be used for example for an USB drive, and don't require to 'touch' the OS file-system for run.
Under Windows, I can distribute a .zip -> .exe -> ....
- 11
0
votes
1
answer
700
views
How to authenticate a user in X11 without gksudo/gksu/pkexec
Are there any alternatives to using gksudo/gksu or pkexec to authenticate users in X11? The only one that comes to mind is creating a wrapper script that uses sudo to ensure my 2-factor ...
- 1,214
1
vote
1
answer
2k
views
Unable to execute GUI application as a different user using `pkexec`
I have created following policy file at /usr/share/polkit-1/actions/com.xyz.xyz.policy
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE policyconfig PUBLIC "-//freedesktop//DTD PolicyKit ...
3
votes
1
answer
2k
views
pkexec - how do I set a custom timeout for auth_admin_keep when writting a pkexec policy
I was just reading the reference manual written by David Z for pkexec on freedesktop.org:
https://www.freedesktop.org/software/polkit/docs/latest/polkit.8.html
and
https://www.freedesktop.org/...
- 1,077
2
votes
2
answers
839
views
su or sudo - how to know which one will work?
I have a bash script (x11docker) that needs to run some commands as root (docker), and some commands as unprivileged user (X servers like Xephyr). The script prompts for password at some point. It ...
- 2,397
2
votes
1
answer
955
views
How to prohibit users from using pkexec?
I can control which users can run su or gksu by, for example, including the line auth required pam_wheel.so deny group=nosu in /etc/pam.d – then members of group nosu won’t be able to use su ...
- 1,400
2
votes
0
answers
210
views
Let polkit/pkexec use another application to ask for my password
I would like pkexec (polkit) to always ask for my password through a particular application and not through the default one. What I need is the equivalent of sudo --askpass.
I would like that so that ...
- 155
3
votes
1
answer
2k
views
Polkit/Consolekit is not working in openRC
some time ago I moved from Systemd to OpenRC. It was very different, to be able to use audio and
webcam I had to add my user to the audio, optical and video group. As some software uses pkexec to be ...
- 301
0
votes
1
answer
906
views
Unable to pass a command to ssh while using pkexec, gives me an error
I am writing a script that relies on pkexec as the machine is hardened and sudo will not work. I allow pkexec to temporarily not prompt the user for a password, so any command will work directly.
If ...
6
votes
1
answer
3k
views
gksu replacement
In the old days of CentOS 5 i had an application that run as another user.
I created a .desktop file which run a command that looked like this:
gksu -u anotheruser someapplication
When the user ...
- 2,020
25
votes
3
answers
32k
views
How do I run GUI applications as root by using pkexec?
I am using Trisquel GNU/Linux-Libre which comes with Gnome3 Flashback Desktop Environment.
I know that I can run GUI application as root by sudo & gksudo but I want to know that How do I run GUI ...
- 24.3k