@SkewedZeppelin just to understand better this statement. Are you saying that the out of the box functionality from AppArmor is weak but it can be strengthened OR are you say that AppArmor as a whole is weak and SELinux is superior by far?
Wouldn’t AppArmor be probably enough for those that don’t have big threats? I mean, just trying to understand what useless mean on this context.
Both AppArmor and SELinux are MACs but they are only as useful as they are configured.
In the case of AA, very few programs are confined by the default enabled/included policies on eg. Ubuntu.
Therefore they don’t offer much protection at all.
Please run aastatus
like I mentioned and it’ll tell you which programs are confined.
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xe3
(xe3)
July 2, 2024, 5:37pm
3
Are you aware of an equivalent command for SELinux that’ll give a nice overview like aastatus?
Edit: I see there is sestatus
but it doesn’t seem comparable
Snaps contains AA embedded on it, right? Running aastatus also captures those packages polices?
Sorry, I’m very newbie to all of this.
dngray
(Daniel Gray)
July 2, 2024, 6:44pm
6
One of the main things that I think is configured is the Firefox snap which has strict confinement .
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Ubuntu has ~3 oob confined running processes. Ubuntu basically just confines Firefox, Thunderbird, and generic snaps. And oh wow rsyslog.
ubuntu-24.04-desktop-amd64.iso
$ sudo aa-status
apparmor module is loaded.
32 profiles are loaded.
27 profiles are in enforce mode.
/snap/snapd/21465/usr/lib/snapd/snap-confine
/snap/snapd/21465/usr/lib/snapd/snap-confine//mount-namespace-capture-helper
/usr/lib/snapd/snap-confine
/usr/lib/snapd/snap-confine//mount-namespace-capture-helper
rsyslogd
snap-update-ns.firefox
snap-update-ns.firmware-updater
snap-update-ns.snap-store
snap-update-ns.snapd-desktop-integration
snap-update-ns.thunderbird
snap-update-ns.ubuntu-desktop-bootstrap
snap.firefox.firefox
snap.firefox.geckodriver
snap.firefox.hook.configure
snap.firefox.hook.connect-plug-host-hunspell
snap.firefox.hook.disconnect-plug-host-hunspell
snap.firefox.hook.post-refresh
snap.firmware-updater.firmware-notifier
snap.firmware-updater.firmware-updater
snap.firmware-updater.firmware-updater-app
snap.firmware-updater.hook.configure
snap.snap-store.hook.configure
snap.snap-store.snap-store
snap.snapd-desktop-integration.hook.configure
snap.snapd-desktop-integration.snapd-desktop-integration
snap.thunderbird.hook.configure
snap.thunderbird.thunderbird
5 profiles are in complain mode.
snap.ubuntu-desktop-bootstrap.os-prober
snap.ubuntu-desktop-bootstrap.probert
snap.ubuntu-desktop-bootstrap.subiquity-loadkeys
snap.ubuntu-desktop-bootstrap.subiquity-server
snap.ubuntu-desktop-bootstrap.ubuntu-desktop-bootstrap
0 profiles are in prompt mode.
0 profiles are in kill mode.
0 profiles are in unconfined mode.
7 processes have profiles defined.
3 processes are in enforce mode.
/usr/sbin/rsyslogd (1265) rsyslogd
/snap/snapd-desktop-integration/157/usr/bin/snapd-desktop-integration (2912) snap.snapd-desktop-integration.snapd-desktop-integration
/snap/snapd-desktop-integration/157/usr/bin/snapd-desktop-integration (3069) snap.snapd-desktop-integration.snapd-desktop-integration
4 processes are in complain mode.
/usr/bin/bash (3251) snap.ubuntu-desktop-bootstrap.subiquity-server
/snap/ubuntu-desktop-bootstrap/171/usr/bin/python3.10 (3284) snap.ubuntu-desktop-bootstrap.subiquity-server
/usr/bin/bash (2535) snap.ubuntu-desktop-bootstrap.ubuntu-desktop-bootstrap
/snap/ubuntu-desktop-bootstrap/171/bin/ubuntu_bootstrap (2692) snap.ubuntu-desktop-bootstrap.ubuntu-desktop-bootstrap
0 processes are in prompt mode.
0 processes are in kill mode.
0 processes are unconfined but have a profile defined.
0 processes are in mixed mode.
Fedora has ~50 oob confined running processes.
Fedora-Workstation-Live-x86_64-40-1.14.iso
$ ps -auxZ | grep -v -e kernel_t -e unconfined_t
LABEL USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
system_u:system_r:init_t:s0 root 1 2.2 0.6 65388 25772 ? Ss 16:15 0:01 /usr/lib/systemd/systemd --switched-root --system --deserialize=40 rhgb
system_u:system_r:syslogd_t:s0 root 961 0.2 0.4 66532 17840 ? Ss 16:15 0:00 /usr/lib/systemd/systemd-journald
system_u:system_r:systemd_userdbd_t:s0 root 989 0.0 0.1 16124 6144 ? Ss 16:15 0:00 /usr/lib/systemd/systemd-userdbd
system_u:system_r:udev_t:s0-s0:c0.c1023 root 1003 0.1 0.3 36460 12780 ? Ss 16:15 0:00 /usr/lib/systemd/systemd-udevd
system_u:system_r:init_t:s0 systemd+ 1110 0.1 0.1 16424 7040 ? Ss 16:15 0:00 /usr/lib/systemd/systemd-oomd
system_u:system_r:systemd_resolved_t:s0 systemd+ 1111 0.0 0.3 25792 15680 ? Ss 16:15 0:00 /usr/lib/systemd/systemd-resolved
system_u:system_r:auditd_t:s0 root 1145 0.0 0.0 20028 2988 ? S<sl 16:15 0:00 /usr/sbin/auditd
system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 dbus 1158 0.0 0.1 10184 5012 ? Ss 16:15 0:00 /usr/bin/dbus-broker-launch --scope system --audit
system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 dbus 1159 0.2 0.1 8288 6220 ? S 16:15 0:00 dbus-broker --log 4 --controller 9 --machine-id 7befb37e1b8a4bccba5bcaa6a57e12a5 --max-bytes 536870912 --max-fds 4096 --max-matches 131072 --audit
system_u:system_r:avahi_t:s0 avahi 1161 0.0 0.1 7244 4224 ? Ss 16:15 0:00 avahi-daemon: running [fedora.local]
system_u:system_r:unconfined_service_t:s0 root 1165 0.0 0.1 302804 5376 ? SLsl 16:15 0:00 /usr/libexec/low-memory-monitor
system_u:system_r:policykit_t:s0 polkitd 1168 0.7 0.2 383960 11004 ? Ssl 16:15 0:00 /usr/lib/polkit-1/polkitd --no-debug
system_u:system_r:unconfined_service_t:s0 root 1169 0.0 0.1 529976 6912 ? Ssl 16:15 0:00 /usr/libexec/power-profiles-daemon
system_u:system_r:virt_qemu_ga_t:s0 root 1181 0.0 0.0 80592 3712 ? Ssl 16:15 0:00 /usr/bin/qemu-ga --method=virtio-serial --path=/dev/virtio-ports/org.qemu.guest_agent.0 --blacklist= -F/etc/qemu-ga/fsfreeze-hook
system_u:system_r:rtkit_daemon_t:s0 rtkit 1182 0.0 0.0 21568 3072 ? SNsl 16:15 0:00 /usr/libexec/rtkit-daemon
system_u:system_r:accountsd_t:s0 root 1183 0.0 0.1 531296 7648 ? Ssl 16:15 0:00 /usr/libexec/accounts-daemon
system_u:system_r:unconfined_service_t:s0 root 1185 0.0 0.1 527652 6272 ? Ssl 16:15 0:00 /usr/libexec/switcheroo-control
system_u:system_r:init_t:s0 root 1186 0.1 0.1 16604 7424 ? Ss 16:15 0:00 /usr/lib/systemd/systemd-homed
system_u:system_r:systemd_logind_t:s0 root 1187 0.1 0.2 20432 10368 ? Ss 16:15 0:00 /usr/lib/systemd/systemd-logind
system_u:system_r:systemd_machined_t:s0 root 1188 0.1 0.1 16420 7424 ? Ss 16:15 0:00 /usr/lib/systemd/systemd-machined
system_u:system_r:devicekit_disk_t:s0 root 1189 0.0 0.3 467948 13132 ? Ssl 16:15 0:00 /usr/libexec/udisks2/udisksd
system_u:system_r:devicekit_power_t:s0 root 1193 0.0 0.2 535320 8576 ? Ssl 16:15 0:00 /usr/libexec/upowerd
system_u:system_r:alsa_t:s0 root 1207 0.0 0.0 4572 2816 ? SNs 16:15 0:00 /usr/sbin/alsactl -s -n 19 -c -E ALSA_CONFIG_PATH=/etc/alsa/alsactl.conf --initfile=/lib/alsa/init/00main rdaemon
system_u:system_r:avahi_t:s0 avahi 1208 0.0 0.0 7244 1288 ? S 16:15 0:00 avahi-daemon: chroot helper
system_u:system_r:modemmanager_t:s0 root 1262 0.1 0.2 316524 11960 ? Ssl 16:15 0:00 /usr/sbin/ModemManager
system_u:system_r:firewalld_t:s0 root 1264 0.4 1.0 359424 43524 ? Ssl 16:15 0:00 /usr/bin/python3 -sP /usr/sbin/firewalld --nofork --nopid
system_u:system_r:chronyd_t:s0 chrony 1363 0.0 0.1 85056 4148 ? S 16:15 0:00 /usr/sbin/chronyd -F 2
system_u:system_r:NetworkManager_t:s0 root 1367 0.1 0.4 551536 18864 ? Ssl 16:15 0:00 /usr/sbin/NetworkManager --no-daemon
system_u:system_r:gssproxy_t:s0 root 1400 0.0 0.0 276764 3604 ? Ssl 16:15 0:00 /usr/sbin/gssproxy -D
system_u:system_r:virtqemud_t:s0 root 1416 0.0 0.5 1400864 20540 ? Ssl 16:15 0:00 /usr/sbin/virtqemud --timeout 120
system_u:system_r:xdm_t:s0-s0:c0.c1023 root 1419 0.0 0.2 532492 9088 ? Ssl 16:15 0:00 /usr/sbin/gdm
system_u:system_r:xdm_t:s0-s0:c0.c1023 root 1433 0.0 0.2 466144 11264 ? Sl 16:15 0:00 gdm-session-worker [pam/gdm-autologin]
system_u:system_r:unconfined_service_t:s0 root 1476 0.0 0.1 305740 6400 ? Ssl 16:15 0:00 /usr/libexec/uresourced
system_u:system_r:init_t:s0 liveuser 1504 0.0 0.0 22192 3728 ? S 16:15 0:00 (sd-pam)
unconfined_u:unconfined_r:unconfined_dbusd_t:s0-s0:c0.c1023 liveuser 1531 0.0 0.0 9196 3968 ? Ss 16:15 0:00 /usr/bin/dbus-broker-launch --scope user
unconfined_u:unconfined_r:unconfined_dbusd_t:s0-s0:c0.c1023 liveuser 1535 0.2 0.1 7324 4928 ? S 16:15 0:00 dbus-broker --log 4 --controller 9 --machine-id 7befb37e1b8a4bccba5bcaa6a57e12a5 --max-bytes 100000000000000 --max-fds 25000000000000 --max-matches 5000000000
unconfined_u:unconfined_r:unconfined_dbusd_t:s0-s0:c0.c1023 liveuser 1730 0.0 0.0 9068 3840 ? S 16:16 0:00 /usr/bin/dbus-broker-launch --config-file=/usr/share/defaults/at-spi2/accessibility.conf --scope user
unconfined_u:unconfined_r:unconfined_dbusd_t:s0-s0:c0.c1023 liveuser 1731 0.0 0.0 4980 2816 ? S 16:16 0:00 dbus-broker --log 4 --controller 9 --machine-id 7befb37e1b8a4bccba5bcaa6a57e12a5 --max-bytes 100000000000000 --max-fds 6400000 --max-matches 5000000000
system_u:system_r:colord_t:s0 colord 1733 0.0 0.2 534748 11332 ? Ssl 16:16 0:00 /usr/libexec/colord
system_u:system_r:rpm_t:s0 root 1769 0.0 0.5 557184 23536 ? Ssl 16:16 0:00 /usr/libexec/packagekitd
system_u:system_r:vdagent_t:s0 root 1864 0.2 0.1 157984 4360 ? Ssl 16:16 0:00 /usr/sbin/spice-vdagentd
system_u:system_r:cupsd_t:s0-s0:c0.c1023 root 1899 0.0 0.2 253448 10368 ? Ss 16:16 0:00 /usr/sbin/cupsd -l
system_u:system_r:pcscd_t:s0 root 1943 0.0 0.1 395752 6976 ? Ssl 16:16 0:00 /usr/sbin/pcscd --foreground --auto-exit
unconfined_u:unconfined_r:xserver_t:s0-s0:c0.c1023 liveuser 1990 0.1 1.0 186428 41320 ? S 16:16 0:00 /usr/bin/Xwayland :0 -rootless -noreset -accessx -core -auth /run/user/1000/.mutter-Xwaylandauth.OTYPQ2 -listenfd 4 -listenfd 5 -displayfd 6 -initfd 7 -byteswappedclients -enable-ei-portal
system_u:system_r:sssd_t:s0 root 2096 0.0 0.2 245440 8704 ? Ss 16:16 0:00 /usr/libexec/sssd/sssd_kcm --uid 0 --gid 0 --logger=files
system_u:system_r:geoclue_t:s0 geoclue 2139 0.0 0.3 897828 12472 ? Ssl 16:16 0:00 /usr/libexec/geoclue
system_u:system_r:NetworkManager_t:s0 root 2159 0.0 0.1 14488 5376 ? Ss 16:16 0:00 /usr/sbin/wpa_supplicant -c /etc/wpa_supplicant/wpa_supplicant.conf -u -s
system_u:system_r:systemd_userdbd_t:s0 root 2256 0.0 0.1 16796 6912 ? S 16:16 0:00 systemd-userwork: waiting...
system_u:system_r:systemd_userdbd_t:s0 root 2277 0.0 0.1 16796 6912 ? S 16:16 0:00 systemd-userwork: waiting...
system_u:system_r:abrt_t:s0-s0:c0.c1023 root 2406 0.0 0.3 548608 13056 ? Ssl 16:16 0:00 /usr/sbin/abrt-dbus -t133
system_u:system_r:systemd_userdbd_t:s0 root 2723 0.0 0.1 16524 6656 ? S 16:16 0:00 systemd-userwork: waiting...
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The good thing about Apparmor is that roddhjav’s apparmor.d project is available with a lot of policies and active development.
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which is awesome, but people have to go out of their way to setup
it is asinine that there aren’t better defaults after all this time.
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