Gentoo Archives: gentoo-user

From: Neil Bothwick <neil@××××××××××.uk>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Update to /etc/sudoers disables wheel users!!!
Date: Wed, 26 Oct 2022 18:22:09
Message-Id: 20221026192203.4721a707@digimed.co.uk
In Reply to: Re: [gentoo-user] Update to /etc/sudoers disables wheel users!!! by Ramon Fischer
1 On Wed, 26 Oct 2022 20:04:10 +0200, Ramon Fischer wrote:
2
3 > Also a very interesting question!
4 >
5 > I just tested this with "visudo" and it does not intercept this.
6 >
7 > If "su" is disabled, you are locked out and you are forced to enter
8 > your system via a live USB stick and a "chroot" in order to edit
9 > "/etc/shadow" to set a root password via "mkpasswd" and enable "su".
10 > Nice. :D
11
12 You need to be root to write to /etc/sudoers.d. If someone has that
13 access, you are already doomed!
14
15 >
16 > -Ramon
17 >
18 > On 26/10/2022 18:52, Grant Taylor wrote:
19 > > What if someone were to put the following into
20 > > /etc/sudoers.d/zzzzzzzzzz
21 > >
22 > >    ALL ALL=(ALL) !ALL
23 > >
24 > > }:-)
25
26
27
28
29 --
30 Neil Bothwick
31
32 I thought I saw the light at the end of the tunnel...
33 but it was just some sod with a torch bringing me more work!

Replies

Subject Author
Re: [gentoo-user] Update to /etc/sudoers disables wheel users!!! Grant Taylor <gtaylor@×××××××××××××××××××××.net>