AVC denial and the suggested actio to take (by the setroubleshoot details) window

[Daniel J Walsh]

On 09/24/2015 03:15 PM, jd1008 wrote:
>
>
> On 09/24/2015 12:58 PM, Daniel J Walsh wrote:
>> What AVC are you seeing?
>>
>> On 09/24/2015 01:58 PM, jd1008 wrote:
>>> After getting AVC denial, I touched /.autorelabel and rebooted.
>>> Took about 5 minutes to finish re-labeling.
>>> Then, I started to ge more AVC denials.
>>> I clicked on the denial icon and read the details.
>>>
>>> Could someone please explain the argument in the suggested "solution" :
>>> restorecon -v '#SharedObjects'
>>>
>>> What in tarnation is '#SharedObjects'
>>>
>>> The man page for semanage and for restorcon do not even
>>> make use of such notation.
>>>
>>> So, how is a user going to correctly interpret the meaning
>>> of such an opaque item as '#SharedObjects' ?
>>>
>>> The selinux troubleshoot says: (but does not explain where the
>>> #SharedObjects directory is )
>>>
>>>
>>> If you want to allow plugin-containe to have read access on the
>>> #SharedObjects directory
>>> Then you need to change the label on #SharedObjects
>>> Do
>>> # semanage fcontext -a -t FILE_TYPE '#SharedObjects'
>>> where FILE_TYPE is one of the following: NetworkManager_etc_rw_t,
>>> NetworkManager_etc_t, abrt_etc_t, admin_home_t, aiccu_etc_t,
>>> alsa_etc_rw_t, alsa_home_t, antivirus_conf_t, antivirus_home_t,
>>> asterisk_etc_t, audio_home_t, auth_home_t, bin_t, bitlbee_conf_t,
>>> bluetooth_conf_t, boot_t, bootloader_etc_t, cache_home_t, cert_t,
>>> cgconfig_etc_t, cgrules_etc_t, chrome_sandbox_home_t, cluster_conf_t,
>>> cobbler_etc_t, condor_conf_t, config_home_t, config_usr_t,
>>> couchdb_conf_t, courier_etc_t, cpucontrol_conf_t, cupsd_etc_t,
>>> cupsd_rw_etc_t, cvs_home_t, data_home_t, dbus_home_t, dbusd_etc_t,
>>> ddclient_etc_t, device_t, devpts_t, dhcp_etc_t, dictd_etc_t,
>>> dnsmasq_etc_t, docker_config_t, docker_home_t, dosfs_t, dovecot_etc_t,
>>> etc_mail_t, etc_runtime_t, etc_t, exports_t, fetchmail_etc_t,
>>> fetchmail_home_t, file_context_t, fingerd_etc_t, firewalld_etc_rw_t,
>>> firstboot_etc_t, fonts_cache_t, fonts_t, ftpd_etc_t, gconf_etc_t,
>>> gconf_home_t, gdomap_conf_t, getty_etc_t, git_user_content_t,
>>> gkeyringd_gnome_home_t, gnome_home_t, gpg_secret_t, gpm_conf_t,
>>> gstreamer_home_t, hddtemp_etc_t, home_bin_t, home_cert_t, home_root_t,
>>> hostname_etc_t, httpd_config_t, httpd_modules_t, httpd_user_content_t,
>>> httpd_user_htaccess_t, httpd_user_ra_content_t,
>>> httpd_user_rw_content_t, httpd_user_script_exec_t, hugetlbfs_t,
>>> icc_data_home_t, iceauth_home_t, innd_etc_t, irc_conf_t, irc_home_t,
>>> irc_tmp_t, irssi_etc_t, irssi_home_t, kdump_etc_t, kismet_home_t,
>>> kmscon_conf_t, krb5_conf_t, krb5_home_t, krb5kdc_conf_t, l2tp_conf_t,
>>> lib_t, likewise_etc_t, lircd_etc_t, local_login_home_t, locale_t,
>>> lvm_etc_t, machineid_t, mail_home_rw_t, mail_home_t, man_cache_t,
>>> man_t, mandb_home_t, mcelog_etc_t, mdadm_conf_t, minidlna_conf_t,
>>> minissdpd_conf_t, mnt_t, mock_etc_t, modules_conf_t, mozilla_conf_t,
>>> mozilla_home_t, mozilla_plugin_rw_t, mozilla_plugin_tmp_t,
>>> mozilla_plugin_tmpfs_t, mpd_etc_t, mpd_home_t, mpd_user_data_t,
>>> mplayer_etc_t, mplayer_home_t, mrtg_etc_t, mscan_etc_t, munin_etc_t,
>>> mysqld_etc_t, mysqld_home_t, nagios_etc_t, named_conf_t, net_conf_t,
>>> nrpe_etc_t, nscd_var_run_t, nslcd_conf_t, ntop_etc_t, ntp_conf_t,
>>> nut_conf_t, openshift_var_lib_t, openvpn_etc_rw_t, openvpn_etc_t,
>>> openvswitch_rw_t, pads_config_t, pegasus_conf_t, pingd_etc_t,
>>> piranha_etc_rw_t, piranha_web_conf_t, polipo_cache_home_t,
>>> polipo_config_home_t, polipo_etc_t, portreserve_etc_t, postfix_etc_t,
>>> postgresql_etc_t, postgrey_etc_t, pppd_etc_t,
>>> prelude_correlator_config_t, printconf_t, proc_t, procmail_home_t,
>>> psad_etc_t, ptal_etc_t, pulseaudio_home_t, puppet_etc_t, qmail_etc_t,
>>> radiusd_etc_t, radvd_etc_t, rhnsd_conf_t, rlogind_home_t, root_t,
>>> rssh_ro_t, rssh_rw_t, rsync_etc_t, samba_etc_t, sandbox_file_t,
>>> sanlock_conf_t, screen_home_t, shell_exec_t, shorewall_etc_t,
>>> slapd_etc_t, snapperd_conf_t, snort_etc_t, soundd_etc_t, spamc_home_t,
>>> spamd_etc_t, speech-dispatcher_home_t, squid_conf_t, src_t,
>>> ssh_home_t, sssd_conf_t, sssd_public_t, stunnel_etc_t, svc_conf_t,
>>> svirt_home_t, sysctl_fs_t, sysctl_t, sysfs_t, syslog_conf_t,
>>> system_conf_t, system_db_t, systemd_home_t, systemd_logind_sessions_t,
>>> telepathy_cache_home_t, telepathy_data_home_t,
>>> telepathy_gabble_cache_home_t, telepathy_logger_cache_home_t,
>>> telepathy_logger_data_home_t, telepathy_mission_control_cache_home_t,
>>> telepathy_mission_control_data_home_t,
>>> telepathy_mission_control_home_t, telepathy_sunshine_home_t,
>>> texlive_home_t, textrel_shlib_t, tftpd_etc_t, thumb_home_t, tmp_t,
>>> tmpfs_t, tor_etc_t, tuned_etc_t, tuned_rw_etc_t, tvtime_home_t,
>>> udev_etc_t, udev_var_run_t, ulogd_etc_t, uml_ro_t, uml_rw_t,
>>> user_fonts_cache_t, user_fonts_config_t, user_fonts_t,
>>> user_home_dir_t, user_home_t, user_tmp_t, userhelper_conf_t, usr_t,
>>> var_lib_t, var_run_t, varnishd_etc_t, virt_content_t, virt_etc_t,
>>> virt_home_t, vmware_conf_t, vmware_file_t, vmware_sys_conf_t,
>>> webalizer_etc_t, wine_home_t, wireshark_home_t, xauth_home_t,
>>> xdm_etc_t, xdm_home_t, xdm_rw_etc_t, xserver_etc_t, ypserv_conf_t,
>>> zarafa_etc_t, zebra_conf_t.
>>> Then execute:
>>> restorecon -v '#SharedObjects'
>>>
> It sems to have to do with some firefox plugin or perhaps add-on.
>
> So, not sure how to answer your question because all I can see in the
> "details" is:
>
>
> SELinux is preventing plugin-containe from write access on the
> directory #SharedObjects.
>
> *****  Plugin mozplugger (93.0 confidence) suggests
> ************************
>
> If you want to use the plugin package
> Then you must turn off SELinux controls on the Firefox plugins.
> Do
> # setsebool -P unconfined_mozilla_plugin_transition 0
>
> *****  Plugin catchall_labels (6.67 confidence) suggests
> *******************
>
> If you want to allow plugin-containe to have write access on the
> #SharedObjects directory
> Then you need to change the label on #SharedObjects
> Do
> # semanage fcontext -a -t FILE_TYPE '#SharedObjects'
> where FILE_TYPE is one of the following: admin_home_t, cache_home_t,
> config_home_t, data_home_t, dbus_home_t, gconf_home_t,
> gkeyringd_gnome_home_t, gnome_home_t, gstreamer_home_t, home_cert_t,
> icc_data_home_t, mozilla_home_t, mozilla_plugin_rw_t,
> mozilla_plugin_tmp_t, mozilla_plugin_tmpfs_t, mplayer_home_t,
> pulseaudio_home_t, texlive_home_t, tmp_t, tmpfs_t, user_fonts_cache_t,
> user_home_dir_t, user_home_t, user_tmp_t.
> Then execute:
> restorecon -v '#SharedObjects'
>
>
> *****  Plugin catchall (1.73 confidence) suggests
> **************************
>
> If you believe that plugin-containe should be allowed write access on
> the #SharedObjects directory by default.
> Then you should report this as a bug.
> You can generate a local policy module to allow this access.
> Do
> allow this access for now by executing:
> # grep plugin-containe /var/log/audit/audit.log | audit2allow -M mypol
> # semodule -i mypol.pp
>
> Additional Information:
> Source Context unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c
>                               0.c1023
> Target Context                unconfined_u:object_r:default_t:s0
> Target Objects                #SharedObjects [ dir ]
> Source                        plugin-containe
> Source Path                   plugin-containe
> Port                          <Unknown>
> Host                          localhost.localdomain
> Source RPM Packages
> Target RPM Packages
> Policy RPM selinux-policy-3.13.1-128.13.fc22.noarch
> Selinux Enabled               True
> Policy Type                   targeted
> Enforcing Mode                Enforcing
> Host Name                     localhost.localdomain
> Platform                      Linux localhost.localdomain
> 4.1.7-200.fc22.x86_64
>                               #1 SMP Mon Sep 14 20:19:24 UTC 2015
> x86_64 x86_64
> Alert Count                   205
> First Seen                    2015-09-24 12:00:16 MDT
> Last Seen                     2015-09-24 12:23:19 MDT
> Local ID                      3a1e93e0-0915-48c9-867d-a3c63c625c7d
>
> Raw Audit Messages
> type=AVC msg=audit(1443118999.521:1746): avc:  denied  { write } for 
> pid=10335 comm="plugin-containe" name="#SharedObjects" dev="sdb3"
> ino=34998740
> scontext=unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c0.c1023
> tcontext=unconfined_u:object_r:default_t:s0 tclass=dir permissive=0
>
>
> Hash: plugin-containe,mozilla_plugin_t,default_t,dir,write
>
Looks like you have a new directory under / that is not default?  Do you
have /home directories in some strange place?

If you do you need to setup a mapping

semanage fcontext -a -e /home /YOURHOMEDIR
restorecon -R -v /YOURHOMEDIR