feat(profiles): first set of rules for Ubuntu Core support.

This commit is contained in:
Alexandre Pujol 2023-02-19 18:22:18 +00:00
parent 1316e0ddde
commit ef292b585c
No known key found for this signature in database
GPG key ID: C5469996F0DF68EC
27 changed files with 351 additions and 92 deletions

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@ -58,7 +58,7 @@ profile apt @{exec_path} flags=(attach_disconnected) {
member={CheckAuthorization,Introspect},
dbus bind bus=system
name= org.debian.apt,
name=org.debian.apt,
@{exec_path} mr,
@ -68,6 +68,7 @@ profile apt @{exec_path} flags=(attach_disconnected) {
/{usr/,}bin/{,e}grep rix,
/{usr/,}bin/echo rix,
/{usr/,}bin/gdbus rix,
/{usr/,}bin/id rix,
/{usr/,}bin/ischroot rix,
/{usr/,}bin/test rix,
/{usr/,}bin/touch rix,
@ -88,6 +89,7 @@ profile apt @{exec_path} flags=(attach_disconnected) {
/{usr/,}bin/etckeeper rPx,
/{usr/,}bin/ps rPx,
/{usr/,}bin/snap rPUx,
/{usr/,}bin/systemctl rCx -> systemctl,
/{usr/,}lib/cnf-update-db rPx,
/{usr/,}lib/needrestart/apt-pinvoke rPx,
@{libexec}/zsys-system-autosnapshot rPx,
@ -224,6 +226,31 @@ profile apt @{exec_path} flags=(attach_disconnected) {
}
profile systemctl {
include <abstractions/base>
capability sys_resource,
ptrace (read),
/{usr/,}bin/systemctl mr,
/{usr/,}bin/systemd-tty-ask-password-agent rix,
owner @{run}/systemd/ask-password/ rw,
owner @{run}/systemd/ask-password-block/* rw,
@{PROC}/1/environ r,
@{PROC}/1/sched r,
@{PROC}/cmdline r,
@{PROC}/sys/kernel/osrelease r,
owner @{PROC}/@{pid}/fd/ r,
owner @{PROC}/@{pid}/stat r,
/dev/kmsg w,
}
include if exists <local/apt>
}

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@ -1,5 +1,6 @@
# apparmor.d - Full set of apparmor profiles
# Copyright (C) 2019-2021 Mikhail Morfikov
# Copyright (C) 2022 Alexandre Pujol <alexandre@pujol.io>
# SPDX-License-Identifier: GPL-2.0-only
abi <abi/3.0>,
@ -27,70 +28,64 @@ profile apt-methods-gpgv @{exec_path} {
@{exec_path} mr,
# The following get "no new privs" so "rix" them
/{usr/,}bin/apt-key rix,
/{usr/,}bin/apt-config rix,
/{usr/,}bin/apt-key rix,
/{usr/,}bin/dpkg rix,
/{usr/,}bin/find rix,
/{usr/,}bin/gpg-connect-agent rix,
/{usr/,}bin/gpgconf rix,
/{usr/,}bin/find rix,
/{usr/,}bin/gpgv rix,
/{usr/,}bin/head rix,
/{usr/,}bin/{m,g,}awk rix,
/{usr/,}bin/base64 rix,
/{usr/,}bin/cat rix,
/{usr/,}bin/chmod rix,
/{usr/,}bin/cmp rix,
/{usr/,}bin/cp rix,
/{usr/,}bin/head rix,
/{usr/,}bin/mktemp rix,
/{usr/,}bin/readlink rix,
/{usr/,}bin/rm rix,
/{usr/,}bin/sed rix,
/{usr/,}bin/sort rix,
/{usr/,}bin/touch rix,
/{usr/,}bin/{m,g,}awk rix,
/{usr/,}bin/base64 rix,
/usr/share/dpkg/cputable r,
/usr/share/dpkg/tupletable r,
/usr/share/keyrings/ r,
/usr/share/keyrings/*.{gpg,asc} r,
/etc/apt/apt.conf r,
/etc/apt/apt.conf.d/{,*} r,
/etc/apt/keyrings/ r,
/etc/apt/keyrings/*.{gpg,asc} r,
/etc/apt/trusted.gpg r,
/etc/apt/trusted.gpg.d/{,*.gpg} r,
/etc/dpkg/dpkg.cfg r,
/etc/dpkg/dpkg.cfg.d/{,*} r,
# For shell pwd
/ r,
/etc/ r,
/root/ r,
/etc/dpkg/dpkg.cfg.d/{,*} r,
/etc/dpkg/dpkg.cfg r,
/var/lib/apt/lists/{,**} r,
/var/lib/dpkg/arch r,
/var/lib/extrepo/keys/*.{gpg,asc} r,
/var/lib/ubuntu-advantage/apt-esm/{,**} r,
owner /var/lib/apt/lists/* rw,
owner /var/lib/apt/lists/partial/* rw,
/etc/apt/apt.conf.d/{,*} r,
/etc/apt/apt.conf r,
/etc/apt/trusted.gpg.d/{,*.gpg} r,
/etc/apt/trusted.gpg r,
# For package building
@{user_build_dirs}/** rwkl -> @{user_build_dirs}/**,
/tmp/ r,
owner /tmp/apt-key-gpghome.*/ rw,
owner /tmp/apt-key-gpghome.*/** rwkl -> /tmp/apt-key-gpghome.*/**,
owner /tmp/apt.{conf,sig,data}.* rw,
/var/lib/apt/lists/{,**} r,
owner /var/lib/apt/lists/* rw,
owner /var/lib/apt/lists/partial/* rw,
/usr/share/dpkg/cputable r,
/usr/share/dpkg/tupletable r,
/var/lib/dpkg/arch r,
@{PROC}/@{pid}/fd/ r,
# Local keyring storage
/etc/apt/keyrings/ r,
/etc/apt/keyrings/*.{gpg,asc} r,
/usr/share/keyrings/ r,
/usr/share/keyrings/*.{gpg,asc} r,
# Extrepo keyring storage
/var/lib/extrepo/keys/*.{gpg,asc} r,
# For package building
@{user_build_dirs}/** rwkl -> @{user_build_dirs}/**,
# file_inherit
owner /dev/tty[0-9]* rw,
/var/log/cron-apt/temp w,

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@ -17,19 +17,20 @@ profile apt-methods-http @{exec_path} {
capability setgid,
capability setuid,
signal (receive) peer=apt-get,
signal (receive) peer=apt,
signal (receive) peer=aptitude,
signal (receive) peer=synaptic,
signal (receive) peer=unattended-upgrade,
signal (receive) peer=update-manager,
network inet dgram,
network inet6 dgram,
network inet stream,
network inet6 stream,
network netlink raw,
signal (receive) peer=apt-get,
signal (receive) peer=apt,
signal (receive) peer=aptitude,
signal (receive) peer=synaptic,
signal (receive) peer=ubuntu-advantage,
signal (receive) peer=unattended-upgrade,
signal (receive) peer=update-manager,
@{exec_path} mr,
# apt-helper gets "no new privs" so "rix" it
@ -47,17 +48,20 @@ profile apt-methods-http @{exec_path} {
/usr/share/dpkg/cputable r,
/usr/share/dpkg/tupletable r,
/var/cache/apt/ r,
/var/cache/apt/** rwk,
/var/log/cron-apt/temp w,
/var/lib/apt/lists/{,**} r,
owner /var/lib/apt/lists/* rw,
owner /var/lib/apt/lists/partial/* rw,
/var/cache/apt/ r,
/var/cache/apt/** rwk,
# For package building
@{user_build_dirs}/** rwkl -> @{user_build_dirs}/**,
# For the aptitude interactive mode
/tmp/ r,
owner /tmp/aptitude-root.*/aptitude-download-* rw,
owner /tmp/apt-changelog-*/*.changelog rw,
@{run}/resolvconf/resolv.conf r,
@ -65,12 +69,7 @@ profile apt-methods-http @{exec_path} {
@{PROC}/1/cgroup r,
@{PROC}/@{pid}/cgroup r,
# For package building
@{user_build_dirs}/** rwkl -> @{user_build_dirs}/**,
# file_inherit
owner /dev/tty[0-9]* rw,
/var/log/cron-apt/temp w,
include if exists <local/apt-methods-http>
}

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@ -1,5 +1,6 @@
# apparmor.d - Full set of apparmor profiles
# Copyright (C) 2020-2021 Mikhail Morfikov
# Copyright (C) 2023 Alexandre Pujol <alexandre@pujol.io>
# SPDX-License-Identifier: GPL-2.0-only
abi <abi/3.0>,
@ -17,18 +18,10 @@ profile dpkg-genbuildinfo @{exec_path} flags=(complain) {
@{exec_path} r,
/{usr/,}bin/perl r,
/etc/dpkg/origins/debian r,
# For package building
owner @{user_build_dirs}/** rwkl -> @{user_build_dirs}/**,
/var/lib/dpkg/status r,
/usr/share/lto-disabled-list/lto-disabled-list r,
/usr/share/dpkg/cputable r,
/usr/share/dpkg/tupletable r,
owner @{user_config_dirs}/dpkg/buildflags.conf r,
/usr/local/bin/ r,
/usr/local/sbin/ r,
/usr/local/lib/ r,
@ -36,5 +29,14 @@ profile dpkg-genbuildinfo @{exec_path} flags=(complain) {
/usr/local/include/ r,
/usr/local/etc/ r,
/etc/dpkg/origins/* r,
/var/lib/dpkg/status r,
owner @{user_config_dirs}/dpkg/buildflags.conf r,
# For package building
owner @{user_build_dirs}/** rwkl -> @{user_build_dirs}/**,
include if exists <local/dpkg-genbuildinfo>
}

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@ -66,8 +66,8 @@ profile dbus-daemon @{exec_path} flags=(attach_disconnected) {
@{system_share_dirs}/dbus-1/services/{,**} r,
# Extra rules for Snap
/var/lib/snapd/dbus-1/services/ r,
/var/lib/snapd/dbus-1/system-services/ r,
/var/lib/snapd/dbus-1/services/{,**} r,
/var/lib/snapd/dbus-1/system-services/{,**} r,
owner @{user_share_dirs}/dbus-1/{,**} r,
@{user_share_dirs}/icc/{,edid-*} r,

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@ -68,7 +68,7 @@ profile xdg-desktop-portal @{exec_path} flags=(attach_disconnected) {
peer=(name=org.freedesktop.DBus), # all peer's labels
dbus receive bus=session path=/org/freedesktop/portal/desktop
interface=org.freedesktop.portal.Settings
interface=org.freedesktop.{DBus.Properties,portal.Settings}
member={ReadAll,GetAll}
peer=(name=:*, label=snap.snapd-desktop-integration.snapd-desktop-integration),

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@ -18,5 +18,9 @@ profile sftp-server @{exec_path} {
@{exec_path} mr,
# For scp
owner @{user_download_dirs}/{,**} rwl,
owner @{user_sync_dirs}/{,**} rwl,
include if exists <local/sftp-server>
}

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@ -22,7 +22,10 @@ profile ssh @{exec_path} {
network inet6 dgram,
network netlink raw,
@{exec_path} mr,
@{exec_path} mrix,
/{usr/,}bin/{,b,d,rb}ash rix,
/{usr/,}bin/{c,k,tc,z}sh rix,
owner @{PROC}/@{pid}/fd/ r,

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@ -0,0 +1,18 @@
# apparmor.d - Full set of apparmor profiles
# Copyright (C) 2023 Alexandre Pujol <alexandre@pujol.io>
# SPDX-License-Identifier: GPL-2.0-only
abi <abi/3.0>,
include <tunables/global>
@{exec_path} = /{usr/,}lib/openssh/agent-launch
profile ssh-agent-launch @{exec_path} {
include <abstractions/base>
@{exec_path} mr,
/{usr/,}bin/{,z,ba,da}sh rix,
include if exists <local/ssh-agent-launch>
}

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@ -22,5 +22,8 @@ profile ssh-keygen @{exec_path} {
owner @{HOME}/@{XDG_SSH_DIR}/ w,
owner @{HOME}/@{XDG_SSH_DIR}/*_*{,.pub} rw,
/dev/tty[0-9]* rw,
/dev/ttyS[0-9]* rw,
include if exists <local/ssh-keygen>
}

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@ -66,23 +66,27 @@ profile sshd @{exec_path} flags=(attach_disconnected) {
/{usr/,}bin/passwd rPx,
/{usr/,}lib/openssh/sftp-server rPx,
/etc/legal r,
/etc/shells r,
/etc/default/locale r,
@{etc_ro}/environment r,
/etc/gss/mech.d/{,*} r,
/etc/issue.net r,
/etc/motd r,
@{etc_rw}/motd r,
@{etc_ro}/security/limits.d/{,*.conf} r,
@{etc_ro}/ssh/sshd_config r,
@{etc_ro}/ssh/sshd_config.d/{,*} r,
/etc/ssh/ssh_host_* r,
/var/lib/extrausers/shadow r,
# For scp
owner @{user_download_dirs}/{,**} rwl,
owner @{user_sync_dirs}/{,**} rwl,
owner @{HOME}/@{XDG_SSH_DIR}/authorized_keys{,.*} r,
owner @{user_cache_dirs}/{,motd*} rw,
@{run}/faillock/[a-zA-z0-9]* rwk,
@{run}/motd.d/{,*} r,
@ -108,6 +112,8 @@ profile sshd @{exec_path} flags=(attach_disconnected) {
owner @{PROC}/@{pid}/uid_map r,
/dev/ptmx rw,
/dev/tty[0-9]* rw,
/dev/ttyS[0-9]* rw,
include if exists <local/sshd>
}

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@ -9,6 +9,15 @@ include <tunables/global>
@{exec_path} = /{usr/,}bin/hostnamectl
profile hostnamectl @{exec_path} {
include <abstractions/base>
include <abstractions/consoles>
include <abstractions/dbus-strict>
capability net_admin,
dbus send bus=system path=/org/freedesktop/
interface=org.freedesktop.hostname1
member=Set*Hostname
peer=(name=org.freedesktop.hostname1),
@{exec_path} mr,

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@ -22,6 +22,8 @@ profile systemd-environment-d-generator @{exec_path} {
@{etc_ro}/environment r,
@{etc_ro}/environment.d/{,**} r,
/snap/snapd/[0-9]*/usr/lib/environment.d/{,*.conf} r,
owner @{user_config_dirs}/environment.d/{,*.conf} r,
/dev/tty rw,

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@ -25,19 +25,24 @@ profile systemd-hostnamed @{exec_path} flags=(attach_disconnected) {
member=CheckAuthorization
peer=(name=org.freedesktop.PolicyKit1),
dbus receive bus=system path=/org/freedesktop/hostname[0-9]
dbus receive bus=system path=/org/freedesktop/hostname1
interface=org.freedesktop.{DBus.Properties,hostname1}
member={Get,GetAll,SetHostname}
peer=(name=:*),
dbus receive bus=system path=/org/freedesktop/hostname1
interface=org.freedesktop.hostname1
member=Set*Hostname
peer=(name=:*, label=hostnamectl),
dbus bind bus=system
name=org.freedesktop.hostname[0-9],
@{exec_path} mr,
/etc/.#hostname* rw,
@{etc_rw}/.#hostname* rw,
@{etc_rw}/hostname rw,
/etc/.#machine-info?????? rw,
/etc/hostname rw,
/etc/machine-info rw,
@{run}/systemd/default-hostname rw,

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@ -9,13 +9,20 @@ include <tunables/global>
@{exec_path} = /{usr/,}lib/ubuntu-advantage/apt-esm-json-hook
profile apt-esm-json-hook @{exec_path} {
include <abstractions/base>
include <abstractions/apt-common>
include <abstractions/consoles>
unix (receive, send) type=stream peer=(label=apt),
@{exec_path} mr,
/{usr/,}bin/dpkg rPx,
/var/lib/ubuntu-advantage/{,**} r,
@{sys}/kernel/mm/transparent_hugepage/hpage_pmd_size r,
owner @{PROC}/@{pid}/fd/ r,
include if exists <local/apt-esm-json-hook>
}

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@ -15,6 +15,7 @@ profile notify-reboot-required @{exec_path} {
/{usr/,}bin/{,ba,da}sh rix,
/{usr/,}bin/gettext rix,
/{usr/,}bin/snap rPx,
/usr/share/update-notifier/notify-reboot-required r,

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@ -0,0 +1,117 @@
# apparmor.d - Full set of apparmor profiles
# Copyright (C) 2023 Alexandre Pujol <alexandre@pujol.io>
# SPDX-License-Identifier: GPL-2.0-only
abi <abi/3.0>,
include <tunables/global>
@{exec_path} = /usr/share/subiquity/console-conf-wrapper
profile subiquity-console-conf @{exec_path} {
include <abstractions/base>
include <abstractions/disks-read>
include <abstractions/nameservice-strict>
include <abstractions/python>
include <abstractions/openssl>
capability chown,
capability fsetid,
network inet stream,
network inet6 stream,
network netlink raw,
@{exec_path} mr,
/{usr/,}bin/{,da,ba}sh rix,
/{usr/,}bin/cat rix,
/{usr/,}bin/grep rix,
/{usr/,}bin/mkdir rix,
/{usr/,}bin/mv rix,
/{usr/,}bin/sleep rix,
/{usr/,}bin/stty rix,
/{usr/,}bin/tr rix,
/{usr/,}bin/tty rix,
/{snap/snapd/[0-9]*/,}{usr/,}bin/snap rPx, # TODO: rCx,
/{usr/,}{,s}bin/sshd rPx,
/{usr/,}bin/journalctl rCx -> journalctl,
/{usr/,}bin/ssh-keygen rPx,
/usr/lib/snapd/snap-recovery-chooser rPUx,
/usr/share/netplan/netplan.script rPUx, # TODO: rPx,
/usr/share/subiquity/{,**} r,
/usr/share/subiquity/console-conf-tui rix,
/usr/share/subiquity/console-conf-write-login-details rix,
/var/lib/extrausers/shadow r,
/var/lib/console-conf/{,**} rw,
/var/log/console-conf/{,**} rw,
@{run}/console-conf/{,**} rw,
@{run}/snapd-recovery-chooser-triggered r,
@{run}/snapd.socket rw,
@{run}/udev/data/+acpi:* r,
@{run}/udev/data/+dmi* r,
@{run}/udev/data/+drm* r,
@{run}/udev/data/+input* r, # For mouse, keyboard, touchpad
@{run}/udev/data/+leds:* r,
@{run}/udev/data/+pci* r,
@{run}/udev/data/+platform* r,
@{run}/udev/data/+sound:card* r, # For sound
@{run}/udev/data/c1:[0-9]* r, # For RAM disk
@{run}/udev/data/c4:[0-9]* r, # For TTY devices
@{run}/udev/data/c5:[0-9]* r, # For /dev/tty, /dev/console, /dev/ptmx
@{run}/udev/data/c7:[0-9]* r, # For Virtual console capture devices
@{run}/udev/data/c10:[0-9]* r, # For non-serial mice, misc features
@{run}/udev/data/c13:[0-9]* r, # For /dev/input/*
@{run}/udev/data/c29:[0-9]* r, # For /dev/fb[0-9]*
@{run}/udev/data/c89:[0-9]* r, # For I2C bus interface
@{run}/udev/data/c108:[0-9]* r, # For /dev/ppp
@{run}/udev/data/c116:[0-9]* r, # For ALSA
@{run}/udev/data/c226:[0-9]* r, # For /dev/dri/card*
@{run}/udev/data/c23[4-9]:[0-9]* r, # For dynamic assignment range 234 to 254
@{run}/udev/data/c24[0-9]:[0-9]* r,
@{run}/udev/data/c25[0-4]:[0-9]* r,
@{run}/udev/data/n[0-9]* r,
@{sys}/**/devices/ r,
@{sys}/*/*/ r,
@{sys}/bus/ r,
@{sys}/class/ r,
@{sys}/devices/**/uevent r,
@{sys}/devices/pci[0-9]*/**/net/*/{,**} r,
@{sys}/devices/pci[0-9]*/**/usb[0-9]/**/net/{,**} r,
@{sys}/devices/virtual/net/{,**} r,
@{PROC}/cmdline r,
owner @{PROC}/@{pid}/fd/ r,
/dev/tty rw,
/dev/tty[0-9]* rw,
/dev/ttyS[0-9]* rw,
profile journalctl {
include <abstractions/base>
/{usr/,}bin/journalctl mr,
@{run}/log/ rw,
/{run,var}/log/journal/ rw,
/{run,var}/log/journal/@{hex}/ rw,
/{run,var}/log/journal/@{hex}/system.journal* rw,
/{run,var}/log/journal/@{hex}/system@@{hex}.journal* rw,
/{run,var}/log/journal/@{hex}/user-@{hex}.journal* rw,
owner @{PROC}/@{pid}/stat r,
/var/lib/dbus/machine-id r,
/etc/machine-id r,
}
include if exists <local/subiquity-console-conf>
}