Como posso restringir o acesso do firefox ao meu diretório pessoal com o apparmor? O perfil padrão só parece direcionar /usr/lib/firefox/* , enquanto eu estou usando apenas o binário /usr/bin/firefox (não tenho certeza se isso é apenas um symlink).
Idealmente, alguém já fez todo o trabalho e criou um perfil reforçado para o firefox e outros programas, mas caso isso não seja verdade, aqui está o perfil atual com o qual estou trabalhando:
# vim:syntax=apparmor
# Author: Jamie Strandboge <[email protected]>
# Declare an apparmor variable to help with overrides
@{MOZ_LIBDIR}=/usr/lib/firefox
#include <tunables/global>
# We want to confine the binaries that match:
# /usr/lib/firefox/firefox
# /usr/lib/firefox/firefox
# but not:
# /usr/lib/firefox/firefox.sh
/usr/lib/firefox/firefox{,*[^s][^h]} {
#include <abstractions/audio>
#include <abstractions/cups-client>
#include <abstractions/dbus-strict>
#include <abstractions/dbus-session-strict>
#include <abstractions/dconf>
#include <abstractions/gnome>
#include <abstractions/ibus>
#include <abstractions/nameservice>
#include <abstractions/openssl>
#include <abstractions/p11-kit>
#include <abstractions/ubuntu-unity7-base>
#include <abstractions/ubuntu-unity7-launcher>
#include <abstractions/dbus-accessibility-strict>
dbus (send)
bus=session
peer=(name=org.a11y.Bus),
dbus (receive)
bus=session
interface=org.a11y.atspi**,
dbus (receive, send)
bus=accessibility,
# for networking
network inet stream,
network inet6 stream,
@{PROC}/[0-9]*/net/arp r,
@{PROC}/[0-9]*/net/if_inet6 r,
@{PROC}/[0-9]*/net/ipv6_route r,
@{PROC}/[0-9]*/net/dev r,
@{PROC}/[0-9]*/net/wireless r,
dbus (send)
bus=system
path=/org/freedesktop/NetworkManager
member=state,
dbus (receive)
bus=system
path=/org/freedesktop/NetworkManager,
# should maybe be in abstractions
/etc/ r,
/etc/mime.types r,
/etc/mailcap r,
/etc/xdg/*buntu/applications/defaults.list r, # for all derivatives
/etc/xfce4/defaults.list r,
/usr/share/xubuntu/applications/defaults.list r,
owner @{HOME}/.local/share/applications/defaults.list r,
owner @{HOME}/.local/share/applications/mimeapps.list r,
owner @{HOME}/.local/share/applications/mimeinfo.cache r,
/var/lib/snapd/desktop/applications/mimeinfo.cache r,
/var/lib/snapd/desktop/applications/*.desktop r,
owner /tmp/** m,
owner /var/tmp/** m,
owner /{,var/}run/shm/shmfd-* rw,
owner /{dev,run}/shm/org.chromium.* rwk,
/tmp/.X[0-9]*-lock r,
/etc/udev/udev.conf r,
# Doesn't seem to be required, but noisy. Maybe allow 'r' for 'b*' if needed.
# Possibly move to an abstraction if anything else needs it.
deny /run/udev/data/** r,
# let the shell know we launched something
dbus (send)
bus=session
interface=org.gtk.gio.DesktopAppInfo
member=Launched,
/etc/timezone r,
/etc/wildmidi/wildmidi.cfg r,
# firefox specific
/etc/firefox*/ r,
/etc/firefox*/** r,
/etc/xul-ext/** r,
/etc/xulrunner-2.0*/ r,
/etc/xulrunner-2.0*/** r,
/etc/gre.d/ r,
/etc/gre.d/* r,
# noisy
deny @{MOZ_LIBDIR}/** w,
deny /usr/lib/firefox-addons/** w,
deny /usr/lib/xulrunner-addons/** w,
deny /usr/lib/xulrunner-*/components/*.tmp w,
deny /.suspended r,
deny /boot/initrd.img* r,
deny /boot/vmlinuz* r,
deny /var/cache/fontconfig/ w,
deny @{HOME}/.local/share/recently-used.xbel r,
# TODO: investigate
deny /usr/bin/gconftool-2 x,
# These are needed when a new user starts firefox and firefox.sh is used
@{MOZ_LIBDIR}/** ixr,
/usr/bin/basename ixr,
/usr/bin/dirname ixr,
/usr/bin/pwd ixr,
/sbin/killall5 ixr,
/bin/which ixr,
/usr/bin/tr ixr,
@{PROC}/ r,
@{PROC}/[0-9]*/cmdline r,
@{PROC}/[0-9]*/mountinfo r,
@{PROC}/[0-9]*/stat r,
owner @{PROC}/[0-9]*/task/[0-9]*/stat r,
@{PROC}/[0-9]*/status r,
@{PROC}/filesystems r,
@{PROC}/sys/vm/overcommit_memory r,
/sys/devices/pci[0-9]*/**/uevent r,
/sys/devices/platform/**/uevent r,
/sys/devices/pci*/**/{busnum,idVendor,idProduct} r,
/sys/devices/pci*/**/{,subsystem_}device r,
/sys/devices/pci*/**/{,subsystem_}vendor r,
/sys/devices/system/node/node[0-9]*/meminfo r,
owner @{HOME}/.cache/thumbnails/** rw,
/etc/mtab r,
/etc/fstab r,
# Needed for the crash reporter
owner @{PROC}/[0-9]*/environ r,
owner @{PROC}/[0-9]*/auxv r,
/etc/lsb-release r,
/usr/bin/expr ix,
/sys/devices/system/cpu/ r,
/sys/devices/system/cpu/** r,
# about:memory
owner @{PROC}/[0-9]*/statm r,
owner @{PROC}/[0-9]*/smaps r,
# Needed for container to work in xul builds
/usr/lib/xulrunner-*/plugin-container ixr,
# allow access to documentation and other files the user may want to look
# at in /usr and /opt
/usr/ r,
/usr/** r,
/opt/ r,
/opt/** r,
# so browsing directories works
/ r,
/**/ r,
# Default profile allows downloads to ~/Downloads and uploads from ~/Public
owner @{HOME}/ r,
owner @{HOME}/Public/ r,
owner @{HOME}/Public/* r,
owner @{HOME}/Downloads/ r,
owner @{HOME}/Downloads/* rw,
# per-user firefox configuration
owner @{HOME}/.{firefox,mozilla}/ rw,
owner @{HOME}/.{firefox,mozilla}/** rw,
owner @{HOME}/.{firefox,mozilla}/**/*.{db,parentlock,sqlite}* k,
owner @{HOME}/.{firefox,mozilla}/plugins/** rm,
owner @{HOME}/.{firefox,mozilla}/**/plugins/** rm,
owner @{HOME}/.gnome2/firefox* rwk,
owner @{HOME}/.cache/mozilla/{,firefox/} rw,
owner @{HOME}/.cache/mozilla/firefox/** rw,
owner @{HOME}/.cache/mozilla/firefox/**/*.sqlite k,
owner @{HOME}/.config/gtk-3.0/bookmarks r,
owner @{HOME}/.config/dconf/user w,
owner /{,var/}run/user/*/dconf/user w,
dbus (send)
bus=session
path=/org/gnome/GConf/Server
member=GetDefaultDatabase
peer=(label=unconfined),
dbus (send)
bus=session
path=/org/gnome/GConf/Database/*
member={AddMatch,AddNotify,AllEntries,LookupExtended,RemoveNotify}
peer=(label=unconfined),
dbus (send)
bus=session
path=/org/gtk/vfs/mounttracker
interface=org.gtk.vfs.MountTracker
member=ListMountableInfo
peer=(label=unconfined),
# gnome-session
dbus (send)
bus=session
path=/org/gnome/SessionManager
interface=org.gnome.SessionManager
member={Inhibit,Uninhibit}
peer=(label=unconfined),
# unity screen API
dbus (send)
bus=system
interface="org.freedesktop.DBus.Introspectable"
path="/com/canonical/Unity/Screen"
member="Introspect"
peer=(label=unconfined),
dbus (send)
bus=system
interface="com.canonical.Unity.Screen"
path="/com/canonical/Unity/Screen"
member={keepDisplayOn,removeDisplayOnRequest}
peer=(label=unconfined),
# freedesktop.org ScreenSaver
dbus (send)
bus=session
path=/{,org/freedesktop/,org.gnome/}Screen{s,S}aver
interface=org.freedesktop.ScreenSaver
member={Inhibit,UnInhibit,SimulateUserActivity}
peer=(label=unconfined),
# gnome, kde and cinnamon screensaver
dbus (send)
bus=session
path=/{,ScreenSaver}
interface=org.{gnome.ScreenSaver,kde.screensaver,cinnamon.ScreenSaver}
member=SimulateUserActivity
peer=(label=unconfined),
# UPower
dbus (send)
bus=system
path=/org/freedesktop/UPower
interface=org.freedesktop.UPower
member=EnumerateDevices
peer=(label=unconfined),
#
# Extensions
# /usr/share/.../extensions/... is already covered by '/usr/** r', above.
# Allow 'x' for downloaded extensions, but inherit policy for safety
owner @{HOME}/.mozilla/**/extensions/** mixr,
deny @{MOZ_LIBDIR}/update.test w,
deny /usr/lib/mozilla/extensions/**/ w,
deny /usr/lib/xulrunner-addons/extensions/**/ w,
deny /usr/share/mozilla/extensions/**/ w,
deny /usr/share/mozilla/ w,
# Miscellaneous (to be abstracted)
# Ideally these would use a child profile. They are all ELF executables
# so running with 'Ux', while not ideal, is ok because we will at least
# benefit from glibc's secure execute.
/usr/bin/mkfifo Uxr, # investigate
/bin/ps Uxr,
/bin/uname Uxr,
/usr/bin/lsb_release Cxr -> lsb_release,
profile lsb_release {
#include <abstractions/base>
#include <abstractions/python>
/usr/bin/lsb_release r,
/bin/dash ixr,
/usr/bin/dpkg-query ixr,
/usr/include/python2.[4567]/pyconfig.h r,
/etc/lsb-release r,
/etc/debian_version r,
/usr/share/distro-info/*.csv r,
/var/lib/dpkg/** r,
/usr/local/lib/python3.[0-6]/dist-packages/ r,
/usr/bin/ r,
/usr/bin/python3.[0-6] mr,
# file_inherit
deny /tmp/gtalkplugin.log w,
}
# Addons
#include <abstractions/ubuntu-browsers.d/firefox>
# Site-specific additions and overrides. See local/README for details.
#include <local/usr.bin.firefox>
}
Parece-me que gostaria de fazer algo como deny ${HOME}/** r, , mas impediria que todo o diretório fosse lido.