I've unfortunately hit a wall investigating this :(
sudo should only override the prompt if passprompt_override is set in
sudoers, or the env variable SUDO_PROMPT is set, and neither is set in
bionic. Furthermore, it's not an issue with the binary, as I've tried
taking the bionic sudo and putting it in a cosmic machine, and it works
perfectly, honoring -p '' like the cosmic version does. That leaves the
environment somehow, but I've run out of leads.
It does work properly in xenial and in cosmic, and the prompt seems to
just be cosmetic anyway, so I'm marking this wontfix.
** Changed in: sudo (Ubuntu)
Status: Confirmed => Won't Fix
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https://bugs.launchpad.net/bugs/1799857
Title:
sudo -p '' displays a password prompt which it shouldn't
Status in sudo package in Ubuntu:
Won't Fix
Bug description:
I have small script that invokes another shell script as root thus:
#!/bin/bash
echo "mypass" | sudo -p '' -S /usr/StorMan/StorMan.sh
when running in 16.04 LTS this didn't display a password prompt which
I understand to be correct behaviour. Since upgrading to 18.04.1 LTS
the output looks like:
amonra@Charon:~$ ./storman
[sudo] password for amonra:
which as far as I can determine is not correct.
Thanks
Dave
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: sudo 1.8.21p2-3ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-38.41-generic 4.15.18
Uname: Linux 4.15.0-38-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.4
Architecture: amd64
CurrentDesktop: LXDE
Date: Thu Oct 25 03:07:27 2018
InstallationDate: Installed on 2016-03-28 (940 days ago)
InstallationMedia: Ubuntu-Server 14.04.4 LTS "Trusty Tahr" - Release amd64
(20160217.1)
SourcePackage: sudo
UpgradeStatus: Upgraded to bionic on 2018-10-22 (2 days ago)
VisudoCheck:
/etc/sudoers: parsed OK
/etc/sudoers.d/README: parsed OK
modified.conffile..etc.sudoers: [inaccessible: [Errno 13] Permission denied:
'/etc/sudoers']
modified.conffile..etc.sudoers.d.README: [inaccessible: [Errno 13] Permission
denied: '/etc/sudoers.d/README']
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