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17 Commits

Author SHA1 Message Date
Chris PeBenito a5dab43a85 various: Module version bump. 
Signed-off-by: Chris PeBenito <pebenito@ieee.org>
 2019-09-11 06:52:32 -04:00
Nicolas Iooss f5a4ce1d35
ulogd: adjust policy for Debian 
On a Debian 10 system, I saw denials for ulogd service:

* It uses a pipe with itself:

    type=AVC msg=audit(1567874422.328:13744): avc:  denied  { write }
    for pid=11416 comm="ulogd" path="pipe:[29006]" dev="pipefs"
    ino=29006 scontext=system_u:system_r:ulogd_t
    tcontext=system_u:system_r:ulogd_t tclass=fifo_file permissive=0

* It enumerates users in /run/systemd/dynamic-uid/ when changing to the
  ulog user (which is not dynamic):

    type=AVC msg=audit(1567874512.576:13748): avc:  denied  { read } for
    pid=18290 comm="ulogd" name="dynamic-uid" dev="tmpfs" ino=16527
    scontext=system_u:system_r:ulogd_t
    tcontext=system_u:object_r:init_var_run_t tclass=dir permissive=0

* It connects to the system D-Bus socket in order to call GetDynamicUser:

    type=AVC msg=audit(1567875114.147:13761): avc:  denied  { write }
    for  pid=28135 comm="ulogd" name="system_bus_socket" dev="tmpfs"
    ino=13799 scontext=system_u:system_r:ulogd_t
    tcontext=system_u:object_r:system_dbusd_var_run_t tclass=sock_file
    permissive=1

    type=AVC msg=audit(1567875114.147:13761): avc:  denied  { connectto
    } for  pid=28135 comm="ulogd" path="/run/dbus/system_bus_socket"
    scontext=system_u:system_r:ulogd_t
    tcontext=system_u:system_r:system_dbusd_t tclass=unix_stream_socket
    permissive=1

    type=USER_AVC msg=audit(1567875276.683:13776): pid=432 uid=106
    auid=4294967295 ses=4294967295 subj=system_u:system_r:system_db
    usd_t msg='avc:  denied  { send_msg } for msgtype=method_call
    interface=org.freedesktop.systemd1.Manager member=GetDynamicUsers
    dest=org.freedesktop.systemd1 spid=30953 tpid=1
    scontext=system_u:system_r:ulogd_t tcontext=system_u:system_r:init_t
    tclass=dbus permissive=1  exe="/usr/bin/dbus-daemon" sauid=106
    hostname=? addr=? terminal=?'

Signed-off-by: Nicolas Iooss <nicolas.iooss@m4x.org>
 2019-09-08 23:06:34 +02:00
Chris PeBenito 68b74385a4 various: Module version bump. 
Signed-off-by: Chris PeBenito <pebenito@ieee.org>
 2019-08-27 00:28:34 -04:00
Chris PeBenito 230262368b ulogd: Rename ulogd_var_run_t to ulogd_runtime_t. 
Signed-off-by: Chris PeBenito <pebenito@ieee.org>
 2019-08-17 15:17:51 -04:00
Chris PeBenito ac1659e79f ulogd: Module version bump. 2019-08-17 15:11:32 -04:00
Nicolas Iooss 9686bf05a7
ulogd: allow starting on a Debian system 
When ulogd is run by systemd on Debian, it logs messages to the journal,
it used a PID file in /run/ulog/ulogd.pid, and logs packets to
/var/log/ulog/syslogemu.log. This last ones triggers a dac_read_search
capability check because the directory is configured as:

    drwxrwx---. ulog adm /var/log/ulog

(root does not have an access to the directory without bypassing the DAC.)

Add a comment describing how to avoid allowing dac_read_search to ulogd_t.

Signed-off-by: Nicolas Iooss <nicolas.iooss@m4x.org>
 2019-08-17 16:03:39 +02:00
Nicolas Iooss d91d41b53a
ulogd: allow creating a netlink-netfilter socket 
This is used to get the packets logged by the firewall.

I experienced this on a Debian system which uses nftables rules with the
"log" keyword:

    type=AVC msg=audit(1565901600.257:348): avc:  denied  { create } for
    pid=8586 comm="ulogd" scontext=system_u:system_r:ulogd_t
    tcontext=system_u:system_r:ulogd_t tcla
    ss=netlink_netfilter_socket permissive=1

    type=AVC msg=audit(1565901103.154:327): avc:  denied  { read } for
    pid=436 comm="ulogd" scontext=system_u:system_r:ulogd_t
    tcontext=system_u:system_r:ulogd_t tclass=netlink_netfilter_socket
    permissive=1

    type=SYSCALL msg=audit(1565901103.154:327): arch=c000003e syscall=45
    success=yes exit=148 a0=8 a1=7f651d19d010 a2=249f0 a3=0 items=0 ppid=1
    pid=436 auid=4294967295 uid=111 gid=118 euid=111 suid=111 fsuid=111
    egid=118 sgid=118 fsgid=118 tty=(none) ses=4294967295 comm="ulogd"
    exe="/usr/sbin/ulogd" subj=system_u:system_r:ulogd_t key=(null)

    type=PROCTITLE msg=audit(1565901103.154:327):
    proctitle=2F7573722F7362696E2F756C6F6764002D2D6461656D6F6E002D2D75696400756C6F67002D2D70696466696C65002F72756E2F756C6F672F756C6F67642E706964

    [ ... ]

    type=AVC msg=audit(1565901600.241:338): avc:  denied  { write } for
    pid=436 comm="ulogd" scontext=system_u:system_r:ulogd_t
    tcontext=system_u:system_r:ulogd_t tclass=netlink_netfilter_socket
    permissive=1

    type=AVC msg=audit(1565901600.257:348): avc:  denied  { create } for
    pid=8586 comm="ulogd" scontext=system_u:system_r:ulogd_t
    tcontext=system_u:system_r:ulogd_t tclass=netlink_netfilter_socket
    permissive=1

    type=AVC msg=audit(1565901600.257:349): avc:  denied  { getattr } for
    pid=8586 comm="ulogd" scontext=system_u:system_r:ulogd_t
    tcontext=system_u:system_r:ulogd_t tclass=netlink_netfilter_socket
    permissive=1

    type=AVC msg=audit(1565901600.257:350): avc:  denied  { bind } for
    pid=8586 comm="ulogd" scontext=system_u:system_r:ulogd_t
    tcontext=system_u:system_r:ulogd_t tclass=netlink_netfilter_socket
    permissive=1

Signed-off-by: Nicolas Iooss <nicolas.iooss@m4x.org>
 2019-08-17 15:53:32 +02:00
Chris PeBenito 3ab07a0e1e Move all files out of the old contrib directory. 2018-06-23 10:38:58 -04:00
Chris PeBenito 09248fa0db Move modules to contrib submodule. 2011-09-09 10:10:03 -04:00
Chris PeBenito 826d014241 Bump module versions for release. 2010-12-13 09:12:22 -05:00
Chris PeBenito e6e42cd4c9 Module version bump for ulogd. 2010-11-19 11:39:51 -05:00
Chris PeBenito b9a562446d Move all ulogd networking into the mysql and postgres optionals. 2010-11-19 11:39:36 -05:00
Jeremy Solt a00839dcc1 ulogd patch from Dan Walsh 
"communicates with mysql and postgres via the network"
 2010-11-18 13:26:19 -05:00
Chris PeBenito 48f99a81c0 Whitespace change: drop unnecessary blank line at the start of .te files. 2010-06-10 08:16:35 -04:00
Chris PeBenito 9570b28801 module version number bump for release 2.20090730 that was mistakenly omitted. 2009-08-05 10:59:21 -04:00
Chris PeBenito 45515556d4 trunk: 10 patches from dan. 2009-06-12 19:44:10 +00:00
Chris PeBenito a5ef553c2d trunk: 5 modules from dan. 2009-04-20 19:03:15 +00:00