diff options
| author |   Sugar, David <dsugar@tresys.com> | 2019-03-05 22:33:50 +0000 |
|---|---|---|
| committer |   Jason Zaman <jason@perfinion.com> | 2019-03-25 18:05:25 +0800 |
| commit | 8eb6fcff84e1c7e037c4b5b18ab36e00283bc4ec (patch) | |
| tree | 56abdbee3a8a4bed9cb54646a3ba46034407ef2d | |
| parent | Add interface to allow relabeling of iso 9660 filesystems. (diff) | |
| download | hardened-refpolicy-8eb6fcff84e1c7e037c4b5b18ab36e00283bc4ec.tar.gz hardened-refpolicy-8eb6fcff84e1c7e037c4b5b18ab36e00283bc4ec.tar.bz2 hardened-refpolicy-8eb6fcff84e1c7e037c4b5b18ab36e00283bc4ec.zip | |
Update cron use to pam interface
I'm seeing a many denials for cron related to faillog_t, lastlog_t
and wtmp_t. These are all due to the fact cron is using pam (and my
system is configured with pam_faillog). I have updated cron to use
auth_use_pam interface to grant needed permissions.
Additional change to allow systemd_logind dbus for cron.
I have included many of the denials I'm seeing, but there are probably
others I didn't capture.
type=AVC msg=audit(1551411001.389:1281): avc: denied { read write } for pid=8807 comm="crond" name="lastlog" dev="dm-14" ino=102 scontext=system_u:system_r:crond_t:s0-s0:c0.c1023 tcontext=system_u:object_r:lastlog_t:s0 tclass=file permissive=1
type=AVC msg=audit(1551411001.389:1281): avc: denied { open } for pid=8807 comm="crond" path="/var/log/lastlog" dev="dm-14" ino=102 scontext=system_u:system_r:crond_t:s0-s0:c0.c1023 tcontext=system_u:object_r:lastlog_t:s0 tclass=file permissive=1
type=SYSCALL msg=audit(1551411001.389:1281): arch=c000003e syscall=2 success=yes exit=3 a0=7f94f608c2ee a1=2 a2=0 a3=75646f6d6d61705f items=1 ppid=7345 pid=8807 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=5 comm="crond" exe="/usr/sbin/crond" subj=system_u:system_r:crond_t:s0-s0:c0.c1023 key="logins"
type=AVC msg=audit(1551411001.389:1282): avc: denied { lock } for pid=8807 comm="crond" path="/var/log/lastlog" dev="dm-14" ino=102 scontext=system_u:system_r:crond_t:s0-s0:c0.c1023 tcontext=system_u:object_r:lastlog_t:s0 tclass=file permissive=1
type=SYSCALL msg=audit(1551411001.389:1282): arch=c000003e syscall=72 success=yes exit=0 a0=3 a1=6 a2=7ffc882a83d0 a3=75646f6d6d61705f items=0 ppid=7345 pid=8807 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=5 comm="crond" exe="/usr/sbin/crond" subj=system_u:system_r:crond_t:s0-s0:c0.c1023 key=(null)
type=AVC msg=audit(1551411001.389:1283): avc: denied { write } for pid=8807 comm="crond" name="wtmp" dev="dm-14" ino=103 scontext=system_u:system_r:crond_t:s0-s0:c0.c1023 tcontext=system_u:object_r:wtmp_t:s0 tclass=file permissive=1
type=AVC msg=audit(1551411001.389:1283): avc: denied { open } for pid=8807 comm="crond" path="/var/log/wtmp" dev="dm-14" ino=103 scontext=system_u:system_r:crond_t:s0-s0:c0.c1023 tcontext=system_u:object_r:wtmp_t:s0 tclass=file permissive=1
type=AVC msg=audit(1551412201.489:1513): avc: denied { getattr } for pid=7323 comm="systemd-logind" path="/proc/9183/cgroup" dev="proc" ino=49836 scontext=system_u:system_r:systemd_logind_t:s0 tcontext=system_u:system_r:crond_t:s0-s0:c0.c1023 tclass=file permissive=1
type=AVC msg=audit(1551412201.511:1514): avc: denied { read write } for pid=9183 comm="crond" name="lastlog" dev="dm-14" ino=102 scontext=system_u:system_r:crond_t:s0-s0:c0.c1023 tcontext=system_u:object_r:lastlog_t:s0 tclass=file permissive=1
type=AVC msg=audit(1551412201.511:1514): avc: denied { open } for pid=9183 comm="crond" path="/var/log/lastlog" dev="dm-14" ino=102 scontext=system_u:system_r:crond_t:s0-s0:c0.c1023 tcontext=system_u:object_r:lastlog_t:s0 tclass=file permissive=1
type=AVC msg=audit(1551412201.511:1515): avc: denied { lock } for pid=9183 comm="crond" path="/var/log/lastlog" dev="dm-14" ino=102 scontext=system_u:system_r:crond_t:s0-s0:c0.c1023 tcontext=system_u:object_r:lastlog_t:s0 tclass=file permissive=1
type=SYSCALL msg=audit(1551412201.511:1515): arch=c000003e syscall=72 success=yes exit=0 a0=3 a1=6 a2=7ffc882a83d0 a3=75646f6d6d61705f items=0 ppid=7345 pid=9183 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=7 comm="crond" exe="/usr/sbin/crond" subj=system_u:system_r:crond_t:s0-s0:c0.c1023 key=(null)
type=USER_START msg=audit(1551412201.511:1516): pid=9183 uid=0 auid=0 ses=7 subj=system_u:system_r:crond_t:s0-s0:c0.c1023 msg='op=PAM:session_open grantors=pam_loginuid,pam_keyinit,pam_limits,pam_systemd,pam_lastlog acct="root" exe="/usr/sbin/crond" hostname=? addr=? terminal=cron res=success'
type=CRED_REFR msg=audit(1551412201.512:1517): pid=9183 uid=0 auid=0 ses=7 subj=system_u:system_r:crond_t:s0-s0:c0.c1023 msg='op=PAM:setcred grantors=pam_env,pam_faillock,pam_unix acct="root" exe="/usr/sbin/crond" hostname=? addr=? terminal=cron res=success'
type=CRED_DISP msg=audit(1551412201.524:1521): pid=9183 uid=0 auid=0 ses=7 subj=system_u:system_r:crond_t:s0-s0:c0.c1023 msg='op=PAM:setcred grantors=pam_env,pam_faillock,pam_unix acct="root" exe="/usr/sbin/crond" hostname=? addr=? terminal=cron res=success'
type=USER_END msg=audit(1551412201.525:1522): pid=9183 uid=0 auid=0 ses=7 subj=system_u:system_r:crond_t:s0-s0:c0.c1023 msg='op=PAM:session_close grantors=pam_loginuid,pam_keyinit,pam_limits,pam_systemd,pam_lastlog acct="root" exe="/usr/sbin/crond" hostname=? addr=? terminal=cron res=success'
type=USER_AVC msg=audit(1551629402.000:21914): pid=7387 uid=81 auid=4294967295 ses=4294967295 subj=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 msg='avc: denied { send_msg } for msgtype=method_call interface=org.freedesktop.login1.Manager member=CreateSession dest=org.freedesktop.login1 spid=6407 tpid=7395 scontext=system_u:system_r:crond_t:s0-s0:c0.c1023 tcontext=system_u:system_r:systemd_logind_t:s0 tclass=dbus exe="/usr/bin/dbus-daemon" sauid=81 hostname=? addr=? terminal=?'
Signed-off-by: Dave Sugar <dsugar@tresys.com>
Signed-off-by: Jason Zaman <jason@perfinion.com>
| -rw-r--r-- | policy/modules/services/cron.te | 4 | ||||
| -rw-r--r-- | policy/modules/system/authlogin.if | 3 |
2 files changed, 3 insertions, 4 deletions
diff --git a/policy/modules/services/cron.te b/policy/modules/services/cron.te index f58f6d15b..0a19e09cb 100644 --- a/policy/modules/services/cron.te +++ b/policy/modules/services/cron.te @@ -315,9 +315,8 @@ init_start_all_units(system_cronjob_t) init_get_generic_units_status(system_cronjob_t) init_get_system_status(system_cronjob_t) -auth_domtrans_chk_passwd(crond_t) auth_manage_var_auth(crond_t) -auth_use_nsswitch(crond_t) +auth_use_pam(crond_t) logging_send_audit_msgs(crond_t) logging_send_syslog_msg(crond_t) @@ -439,6 +438,7 @@ optional_policy(` ') optional_policy(` + systemd_dbus_chat_logind(crond_t) systemd_write_inherited_logind_sessions_pipes(crond_t) ') diff --git a/policy/modules/system/authlogin.if b/policy/modules/system/authlogin.if index 1ebd8814b..702f38f17 100644 --- a/policy/modules/system/authlogin.if +++ b/policy/modules/system/authlogin.if @@ -51,10 +51,9 @@ interface(`auth_use_pam',` auth_domtrans_chk_passwd($1) auth_domtrans_upd_passwd($1) auth_dontaudit_read_shadow($1) - auth_read_login_records($1) - auth_append_login_records($1) auth_rw_lastlog($1) auth_rw_faillog($1) + auth_rw_login_records($1) auth_setattr_faillog_files($1) auth_exec_pam($1) auth_use_nsswitch($1) |