Attualmente sudo
verrà richiesta una password, ma dopo ciò non accade assolutamente nulla. Nessun errore di alcun tipo.
Ho controllato il file sudoers, ha superato il controllo della sintassi visudo, ecco l'installazione:
#
# This file MUST be edited with the 'visudo' command as root.
#
# Please consider adding local content in /etc/sudoers.d/ instead of
# directly modifying this file.
#
# See the man page for details on how to write a sudoers file.
#
Defaults env_reset
Defaults secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
# Host alias specification
# User alias specification
# Cmnd alias specification
# User privilege specification
root ALL=(ALL:ALL) ALL
# Members of the admin group may gain root privileges
%admin ALL=(ALL) ALL
# Allow members of group sudo to execute any command
%sudo ALL=(ALL:ALL) ALL
# See sudoers(5) for more information on "#include" directives:
#includedir /etc/sudoers.d
Il file ha 0440 come autorizzazione. Mi sono aggiunto al gruppo sudo
e admin
.
Ecco come appare quando tento di usare Sudo:
kml@rhythmsdev:/etc$ sudo apt-get update
kml@rhythmsdev:/etc$
Come puoi vedere, nessun errore. Torna semplicemente al prompt.
Ecco le autorizzazioni per i file
-r--r----- 1 root root 723 Feb 1 10:10 sudoers
sudoers.d
drwxr-xr-x 2 root root 4096 Feb 4 16:46 .
Ecco l'output di id
uno degli utenti con cui sto cercando di far funzionare Sudo:
uid=1010(kml) gid=102(develop) groups=102(develop),4(adm),27(sudo),106(admin),110(ftp)
Come ho eseguito l'aggiornamento.
Ho eseguito l'aggiornamento usando do-release-upgrade -d
su SSH, ma con accesso fisico possibile tramite un viaggio lungo il corridoio.
Ecco i contenuti dell'elenco /etc/sources.list
#
# deb cdrom:[Ubuntu-Server 10.04 LTS _Lucid Lynx_ - Release i386 (20100427)]/ lucid main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://us.archive.ubuntu.com/ubuntu/ precise main restricted
deb-src http://us.archive.ubuntu.com/ubuntu/ precise main restricted
## Major bug fix updates produced after the final release of the
## distribution.
deb http://us.archive.ubuntu.com/ubuntu/ precise-updates main restricted
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-updates main restricted
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://us.archive.ubuntu.com/ubuntu/ precise universe
deb-src http://us.archive.ubuntu.com/ubuntu/ precise universe
deb http://us.archive.ubuntu.com/ubuntu/ precise-updates universe
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-updates universe
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://us.archive.ubuntu.com/ubuntu/ precise multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ precise multiverse
deb http://us.archive.ubuntu.com/ubuntu/ precise-updates multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-updates multiverse
## Uncomment the following two lines to add software from the 'backports'
## repository.
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
# deb http://us.archive.ubuntu.com/ubuntu/ lucid-backports main restricted universe multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu/ lucid-backports main restricted universe multiverse
## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu lucid partner
# deb-src http://archive.canonical.com/ubuntu lucid partner
deb http://security.ubuntu.com/ubuntu precise-security main restricted
deb-src http://security.ubuntu.com/ubuntu precise-security main restricted
deb http://security.ubuntu.com/ubuntu precise-security universe
deb-src http://security.ubuntu.com/ubuntu precise-security universe
deb http://security.ubuntu.com/ubuntu precise-security multiverse
deb-src http://security.ubuntu.com/ubuntu precise-security multiverse
# deb http://security.ubuntu.com/ubuntu maverick-security main universe
Directory: /etc/apt/sources.list.d
è vuota.
lsb_release -a
è
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.1 LTS
Release: 12.04
Codename: precise
apt-cache policy sudo
è:
sudo:
Installed: 1.8.3p1-1ubuntu3.3
Candidate: 1.8.3p1-1ubuntu3.3
Version table:
*** 1.8.3p1-1ubuntu3.3 0
500 http://us.archive.ubuntu.com/ubuntu/ precise-updates/main i386 Packages
100 /var/lib/dpkg/status
1.8.3p1-1ubuntu3.2 0
500 http://security.ubuntu.com/ubuntu/ precise-security/main i386 Packages
1.8.3p1-1ubuntu3 0
500 http://us.archive.ubuntu.com/ubuntu/ precise/main i386 Packages
type -a sudo
è
sudo is /usr/bin/sudo
sha256sum $(which sudo)
è
0efd358e04ea07dc73b67642d9bb85f49143c65996a7c88a57b42557a0b0a50d /usr/bin/sudo
pkexec echo success
fatto:
==== AUTHENTICATING FOR org.freedesktop.policykit.exec ===
Authentication is needed to run `/bin/echo' as the super user
Multiple identities can be used for authentication:
1. My Name,,, (me)
2. ,Account used for Git,, (git)
3. Coworker1,,, (cw1)
4. Coworker2,,, (cw2)
5. Coworker3,,, (cw3)
6. My Name,,, (me)
7. Coworker4,,, (cw4)
8. Coworker5,,, (cw5)
9. ,Account used for Git,, (git)
Choose identity to authenticate as (1-9): 1
Password:
==== AUTHENTICATION COMPLETE ===
success
I nomi sono stati cambiati per proteggere i più innocenti. Mi presento due volte, per qualche motivo. Ma nessuno degli altri colleghi può usare Sudo (quelli che potrebbero comunque pre-aggiornare).
Ecco l'output di alcuni altri comandi.
visudo il file sudoers e aggiunto
kml ALL=(ALL:ALL) ALL
sotto la linea di root
sudo -i echo success
restituito come prima, niente.
echo foo | sudo tee foo.txt; ls -l foo.txt
ceduto:
ls: cannot access foo.txt: No such file or directory
Come ho reinstallato Sudo.
L'ho realizzato due volte.
La prima volta che ho eseguito -
apt-get install --reinstall sudo
Da root
Questo ha fatto poco, quindi ho disinstallato prima tramite:
apt-get uninstall sudo
seguito da
apt-get install sudo
Modifica più informazioni, rediti
sudo
ritorna silenzioso dopo l'autenticazione della password e non lo chiede più.
sudo -k
e sudo -K
inoltre non riesce silenziosamente a eseguire l' accesso come root, richiede una password su un account normale.
Maggiori informazioni 2
mi sono imbattuto tail -f /var/log/auth.log
Ecco l'output dal mio sudo ls
dal mio account kml
Feb 6 16:33:27 rhythmsdev sudo: pam_unix(sudo:session): session opened for user root by kml(uid=1010)
Feb 6 16:33:27 rhythmsdev sudo: pam_unix(sudo:session): session closed for user root
Il tentativo di inserire una password errata richiede una nuova password e la registra
Feb 6 16:35:17 rhythmsdev sudo: pam_unix(sudo:auth): authentication failure; logname=kml uid=1010 euid=0 tty=/dev/pts/0 ruser=kml rhost= user=kml
ED3
sudo apt-get clean && sudo apt-get update && sudo apt-get --purge --reinstall install sudo
Il Sudo non funziona ancora. Ecco l'output
apt-get install --purge --reinstall sudo
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
mono-2.0-gac libxcb-aux0 python-fstab libgnomekbd4 libts-0.0-0 libwpd8c2a libcdio10 xsltproc pnm2ppa librpmbuild0 libcolamd2.7.1 lp-solve libglitz-glx1 openoffice.org-writer libntfs10 python-gnome2 libxcb-render-util0 libevent-1.4-2
gnome-media gnome-desktop-data libgtk-vnc-1.0-0 libgnomepanel2.24-cil xulrunner-1.9.2 libxcb-event1 libindicator0 linux-headers-2.6.32-38 libicu42 openoffice.org-draw libdbusmenu-glib1 ubufox python-aptdaemon-gtk openoffice.org-gtk
libsilc-1.1-2 libgnome-media0 libbeagle1 g++-4.4 libexchange-storage1.2-3 libgraphite3 libwpg-0.1-1 libibus1 libproxy0 libnm-util1 python-gtksourceview2 libevview2 scrollkeeper libindicate-gtk2 libwebkit-1.0-2
libmono-system-runtime2.0-cil libpisock9 libdns64 libcamel1.2-14 bcmwl-modaliases librpmio0 librpm0 libgnome2-perl libaccess-bridge-java-jni libstdc++6-4.4-dev libeggdbus-1-0 libnspr4-0d libgtkhtml-editor0 esound-common
python-pyorbit gdebi-core libnotify1 python-telepathy libedata-cal1.2-6 libaccess-bridge-java libdevkit-power-gobject1 gnome-media-common librasqal2 libpango1.0-common ubuntuone-client-gnome cups-driver-gutenprint libgadu3
openoffice.org-style-human libmono-cairo2.0-cil libisccc60 cpu-checker libgweather1 python-gtkspell libgnome-bluetooth7 libxxf86misc1 libloudmouth1-0 libsexy2 libxcb-atom1 libido-0.1-0 libgmime2.4-cil compiz-plugins libffi5
libgnome-pilot2 libdirectfb-1.2-0 openoffice.org-style-galaxy libgssdp-1.0-2 libcryptui0 finger libmusicbrainz4c2a python-pyatspi libgp11-0 libjs-mootools python-webkit libgcr0 libqt4-webkit libcdio-cdda0 libhunspell-1.2-0 liblwres60
libgmp3c2 libgtksourceview2.0-common openoffice.org-math libhal1 libgtksourceview2.0-0 hal libgnome2-vfs-perl libprotobuf5 libesd0 openoffice.org-common libegroupwise1.2-13 libdbusmenu-gtk1 libgsf-1-common gnome-doc-utils
libecal1.2-7 at-spi libpoppler5 libgmime-2.4-2 libgdata1.2-1 libedataserver1.2-11 libhal-storage1 libpython2.6 gnome-system-monitor libmldbm-perl libbind9-60 libimobiledevice0 libgtkmm-2.4-1c2a libglitz1 libevdocument2
libgdata-google1.2-1 libspeechd2 fglrx-modaliases libnunit2.4-cil libclutter-gtk-0.10-0 libebook1.2-9 libmagickcore2 libaudiofile0 libwps-0.1-1 libedataserverui1.2-8 nvidia-173-modaliases libphonon4 libgnome-window-settings1
libedata-book1.2-2 libgdata6 libxss1 libgs8 openoffice.org-emailmerge libappindicator0 liblpint-bonobo0 ntfsprogs libjpeg62 libgtkhtml-editor-common libqt4-designer libmpfr1ldbl libcdio-paranoia0 libmysqlclient16 libmagickwand2
libisccfg60 libfreezethaw-perl smartdimmer libgupnp-1.0-3 screen-resolution-extra libnl1 libanthy0 tsconf liboobs-1-4 libgucharmap7 libgksu2-0 libdb4.7 libsilcclient-1.1-3 libindicate4 libndesk-dbus-glib1.0-cil libraptor1 python-wnck
liboil0.3 libebackend1.2-0 firefox-branding hal-info speech-dispatcher libgnome-desktop-2-17 fuse-utils python-desktopcouch gwibber libisc60 libnice0 linux-headers-2.6.32-38-generic libnautilus-extension1 compiz-fusion-plugins-main
gnome-applets-data min12xxw libwebkit-1.0-common libavahi-ui0 libprotoc5 nvidia-96-modaliases libavahi-core6 libgupnp-igd-1.0-2 libgnome2-canvas-perl libgtkhtml3.14-19 libgsf-1-114 python-rdflib gnome-panel-data libpoppler-glib4
libpisync1 libdotconf1.0 python-indicate
Use 'apt-get autoremove' to remove them.
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 16 not upgraded.
Need to get 292 kB of archives.
After this operation, 0 B of additional disk space will be used.
Get:1 http://us.archive.ubuntu.com/ubuntu/ precise-updates/main sudo i386 1.8.3p1-1ubuntu3.3 [292 kB]
Fetched 292 kB in 0s (742 kB/s)
(Reading database ... 310429 files and directories currently installed.)
Preparing to replace sudo 1.8.3p1-1ubuntu3.3 (using .../sudo_1.8.3p1-1ubuntu3.3_i386.deb) ...
Unpacking replacement sudo ...
Processing triggers for ureadahead ...
Processing triggers for man-db ...
Setting up sudo (1.8.3p1-1ubuntu3.3) ...
modifica 4
sha256sum /usr/lib/sudo/sudoers.so /usr/lib/sudo/sudo_noexec.so
risultati in
6f2e56e05d9a3de942558255b72d59a147be2c637247e244c365838378fe6ec3 /usr/lib/sudo/sudoers.so
7db6a45129ec1ef6d4cb21d7a488a85f5b45e4d21990116f64c9e71f116648c0 /usr/lib/sudo/sudo_noexec.so
Sudo come un altro utente, (eseguito come root)
root@rhythmsdev:/home/kml# sudo -u kml echo success
root@rhythmsdev:/home/kml#
modifica 5
Usando gli script forniti da Eliah Kagan qui ho verificato la presenza di gruppi duplicati e ID. Tutte le differenze appaiono vuote.
modifica 6
strace echo success
Qui
modifica 7
root@rhythmsdev:/home/kml# sudo echo success
root@rhythmsdev:/home/kml# echo $?
1
modifica 8
Sembra interessante, è diverso da un server che ha sudo funzionante
root@rhythmsdev:/home/kml# sudo -l
Matching Defaults entries for root on this host:
env_reset,
secure_path=/usr/local/sbin\:/usr/local/bin\:/usr/sbin\:/usr/bin\:/sbin\:/bin
User root may run the following commands on this host:
(ALL : ALL) ALL
(ALL) ALL
root@rhythmsdev:/home/kml#
Sono io come root
Io come me (non root)
kml@rhythmsdev:~$ sudo -l
[sudo] password for kml:
Matching Defaults entries for kml on this host:
env_reset,
secure_path=/usr/local/sbin\:/usr/local/bin\:/usr/sbin\:/usr/bin\:/sbin\:/bin
User kml may run the following commands on this host:
(ALL : ALL) ALL
(ALL) ALL
(ALL : ALL) ALL
kml@rhythmsdev:~$
Grazie,
Sono fresco di idee al momento.
sudo -u kml echo success
da un utente non root, non succede nulla. Se lo faccio, sudo -k echo success
mi viene richiesta una password, quindi non succede nulla.