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On 01/03/2014 12:25 PM, Robert Moskowitz wrote:
On 01/03/2014 12:03 PM, Daniel J Walsh wrote:
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> On 01/03/2014 11:34 AM, Robert Moskowitz wrote:
>> On 01/03/2014 11:21 AM, Daniel J Walsh wrote:
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>>> On 01/02/2014 05:29 PM, Robert Moskowitz wrote:
>>>> And the mail is failing. Here is what I have done:
>>>>
>>>> I determined that in:
>>>> /usr/share/logwatch/default.conf/logwatch.conf mailer =
>>>> "/usr/sbin/sendmail -t"
>>>>
>>>> so in: /etc/logwatch/conf/logwatch.conf mailer = "/usr/bin/mailx
>>>> -t"
>>>>
>>>> In /etc/aliases I have:
>>>>
>>>> # Person who should get root's mail root: rgm
>>>>
>>>> and I ran newaliases
>>>>
>>>> 'journalctl |grep -i logwatch' shows the following (along with
>>>> other lines):
>>>>
>>>> Jan 02 03:32:01
lx120e.htt-consult.com run-parts[16112]:
>>>> (/etc/cron.daily) starting 0logwatch Jan 02 03:32:12
>>>>
lx120e.htt-consult.com run-parts[16429]: (/etc/cron.daily)
>>>> finished 0logwatch Jan 02 03:32:16
lx120e.htt-consult.com
>>>> setroubleshoot[16427]: dbus
avc(node=lx120e.htt-consult.com
>>>> type=AVC msg=audit(1388651532.024:734): avc: denied { write } for
>>>> pid=16425 comm="mailx" name="root"
dev="dm-0" ino=1308161
>>>> scontext=system_u:system_r:logwatch_mail_t:s0-s0:c0.c1023
>>>> tcontext=system_u:object_r:admin_home_t:s0 tclass=dir
>>>>
node=lx120e.htt-consult.com type=SYSCALL
>>>> msg=audit(1388651532.024:734): arch=40000003 syscall=5 success=no
>>>> exit=-13 a0=9b15128 a1=8441 a2=1b6 a3=809134c items=0 ppid=1
>>>> pid=16425 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0
>>>> fsgid=0 ses=15 tty=(none) comm="mailx"
exe="/usr/bin/mailx"
>>>> subj=system_u:system_r:logwatch_mail_t:s0-s0:c0.c1023 key=(null)
>>>> Jan 02 03:32:16
lx120e.htt-consult.com setroubleshoot[16427]:
>>>> AuditRecordReceiver.add_record_to_cache():
>>>>
node=lx120e.htt-consult.com type=AVC msg=audit(1388651532.24:734):
>>>> avc: denied { write } for pid=16425 comm="mailx"
name="root"
>>>> dev="dm-0" ino=1308161
>>>> scontext=system_u:system_r:logwatch_mail_t:s0-s0:c0.c1023
>>>> tcontext=system_u:object_r:admin_home_t:s0 tclass=dir Jan 02
>>>> 03:32:16
lx120e.htt-consult.com setroubleshoot[16427]:
>>>> AuditRecordReceiver.add_record_to_cache():
>>>>
node=lx120e.htt-consult.com type=SYSCALL
>>>> msg=audit(1388651532.24:734): arch=40000003 syscall=5 success=no
>>>> exit=-13 a0=9b15128 a1=8441 a2=1b6 a3=809134c items=0 ppid=1
>>>> pid=16425 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0
>>>> fsgid=0 ses=15 tty=(none) comm="mailx"
exe="/usr/bin/mailx"
>>>> subj=system_u:system_r:logwatch_mail_t:s0-s0:c0.c1023 key=(null)
>>>> Jan 02 03:32:16
lx120e.htt-consult.com setroubleshoot[16427]:
>>>> analyze_avc()
>>>> avc=scontext=system_u:system_r:logwatch_mail_t:s0-s0:c0.c1023
>>>> tcontext=system_u:object_r:admin_home_t:s0 access=['write']
>>>> tclass=dir tpath=/root
>>>>
>>>> oh, here are the mail files:
>>>>
>>>> # ls -ls /var/spool/mail/ total 8 0 -rw-rw----. 1 rgm mail 0
>>>> Jan 2 16:47 rgm 8 -rw-------. 1 root mail 5886 Dec 31 12:27 root 0
>>>> -rw-rw----. 1 rpc mail 0 Dec 25 13:27 rpc
>>>>
>>>> The content in root mail is from when I had postfix installed. I
>>>> have since deleted it to work on getting mailx to work instead.
>>>>
>>>> =================================
>>>>
>>>>
>>>> perhaps /var/spool/mail/root needs 660 permissions?
>>>>
>>>>
>>> Do you know what mailx is trying to write into the /root directory?
>> The output of logwatch. I edited /etc/logwatch/conf/logwatch.conf
>>
>> with the line:
>>
>> mailer = "/usr/bin/mailx -t"
>>
>> To override /usr/share/logwatch/default.conf/logwatch.conf
>>
>> mailer = "/usr/sbin/sendmail -t"
>>
>>
> Ok I just added a patch to git to allow logwatch_mail_t to write to the
> /root directory certain files.
>
> sesearch -T -s logwatch_mail_t | grep mail_home_rw_t type_transition
> logwatch_mail_t admin_home_t : dir mail_home_rw_t ".maildir";
> type_transition logwatch_mail_t user_home_dir_t : dir mail_home_rw_t
> ".maildir"; type_transition logwatch_mail_t admin_home_t : file
> mail_home_rw_t ".esmtp_queue"; type_transition logwatch_mail_t
> admin_home_t : dir mail_home_rw_t "Maildir"; type_transition
> logwatch_mail_t user_home_dir_t : file mail_home_rw_t ".esmtp_queue";
> type_transition logwatch_mail_t user_home_dir_t : dir mail_home_rw_t
> "Maildir";
>
> You could do something similar by adding:
>
> policy_module(mylogwatch, 1.0) gen_require(` type logwatch_mail_t; ')
>
> mta_filetrans_admin_home_content(logwatch_mail_t)
Dan, you are way beyond me here. I need pretty clear cookbooks. Changing a
line in a .conf is one thing, what are you telling me to do here? Just cut
and paste from policy... to mta... into a rooted terminal session?
Create a file mylogwatch.te with the following content.
policy_module(mylogwatch, 1.0)
gen_require(`
type logwatch_mail_t;
')
mta_filetrans_admin_home_content(logwatch_mail_t)
Now execute this command to compile the policy and load it into the kernel
# make -f /usr/share/selinux/devel/Makefile
# semodule -i mylogwatch.pp
Now you should be allowed to run logwatch_mail_t in enforcing mode.
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