On 08/23/2010 01:12 PM, Arthur Dent wrote:
On Mon, 2010-08-23 at 13:01 +0200, Dominick Grift wrote:
> On 08/23/2010 12:57 PM, Arthur Dent wrote:
>> On Mon, 2010-08-23 at 12:31 +0200, Dominick Grift wrote:
>>> On 08/23/2010 12:20 PM, Arthur Dent wrote:
>>>> On Mon, 2010-08-23 at 10:56 +0200, Dominick Grift wrote:
>>>>> On 08/23/2010 10:47 AM, Arthur Dent wrote:
>>>>>> On Mon, 2010-08-23 at 10:42 +0200, Dominick Grift wrote:
>>>>>>> On 08/23/2010 10:40 AM, Arthur Dent wrote:
>>>>>>>> On Mon, 2010-08-23 at 10:29 +0200, Dominick Grift wrote:
>>>>>>>>> On 08/23/2010 10:09 AM, Arthur Dent wrote:
>>>>>>>>>> On Sun, 2010-08-22 at 22:44 +0100, Arthur Dent
wrote:
>>>>>>>>>>> On Sun, 2010-08-22 at 23:07 +0200, Dominick
Grift wrote:
>>>>>>>>>>>> On 08/22/2010 08:24 PM, Arthur Dent
wrote:
>>>>>>>>>>>
>>>
>>> Looks like clamd again/or still runs in the init script domain.
>>> Therefore clamdscan cannot connect to it
>>>
>>> ps -auxZ | grep initrc_t
>>
>> # ps -auxZ | grep initrc_t
>> Warning: bad syntax, perhaps a bogus '-'? See
/usr/share/doc/procps-3.2.8/FAQ
>> system_u:system_r:initrc_t:s0 ddclient 1141 0.0 0.1 9148 1824 ? S
Aug21 0:02 ddclient - sleeping for 20 seconds
>> unconfined_u:system_r:initrc_t:s0 clamav 19801 0.2 27.6 309276 279772 ?
Ssl Aug22 4:01 /usr/local/sbin/clamd
>> unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 root 25217 0.0 0.0 4312
728 pts/0 S+ 11:55 0:00 grep initrc_t
>
> So clamd runs in the wrong domain:
>
> try:
>
> matchpathcon /usr/local/sbin/clamd
> chcon -t clamd_exec_t /usr/local/sbin/clamd
> service clamd restart
Not quite sure what went wrong here...
Well now clamd runs in the proper domain but it is denied to read
generic files in /usr/share.
Basically likely another side effect of using a custom package.
Here is how to allow it:
mkdir ~/myclamd; cd ~/myclamd;
echo "policy_module(myclamd, 1.0.0)" > myclamd.te;
echo "gen_require(\`" >> myclamd.te;
echo "type clamd_t;" >> myclamd.te;
echo "')" >> myclamd.te;
echo "files_read_usr_files(clamd_t)" >> myclamd.te;
make -f /usr/share/selinux/devel/Makefile myclamd.pp
sudo semodule -i myclamd.pp
But expect more issues after this
# matchpathcon /usr/local/sbin/clamd
/usr/local/sbin/clamd system_u:object_r:bin_t:s0
# chcon -t clamd_exec_t /usr/local/sbin/clamd
# service clamd restart
Stopping clamd: [ OK ]
Starting clamd: [FAILED]
# ausearch -m avc -ts recent
----
time->Mon Aug 23 12:08:19 2010
type=SYSCALL msg=audit(1282561699.384:43466): arch=40000003 syscall=33
success=no exit=-13 a0=8c94b80 a1=4 a2=168ed30 a3=8c94b80 items=0
ppid=25311 pid=25312 auid=4294967295 uid=503 gid=503 euid=503 suid=503
fsuid=503 egid=503 sgid=503 fsgid=503 tty=(none) ses=4294967295
comm="clamd" exe="/usr/local/sbin/clamd"
subj=unconfined_u:system_r:clamd_t:s0 key=(null)
type=AVC msg=audit(1282561699.384:43466): avc: denied { read } for
pid=25312 comm="clamd" name="daily.cld" dev=sda6 ino=272876
scontext=unconfined_u:system_r:clamd_t:s0
tcontext=unconfined_u:object_r:usr_t:s0 tclass=file
----
time->Mon Aug 23 12:08:19 2010
type=SYSCALL msg=audit(1282561699.384:43467): arch=40000003 syscall=5
success=no exit=-13 a0=8c94c38 a1=0 a2=1b6 a3=154d519 items=0 ppid=25311
pid=25312 auid=4294967295 uid=503 gid=503 euid=503 suid=503 fsuid=503
egid=503 sgid=503 fsgid=503 tty=(none) ses=4294967295 comm="clamd"
exe="/usr/local/sbin/clamd" subj=unconfined_u:system_r:clamd_t:s0
key=(null)
type=AVC msg=audit(1282561699.384:43467): avc: denied { read } for
pid=25312 comm="clamd" name="phish.ndb" dev=sda6 ino=263326
scontext=unconfined_u:system_r:clamd_t:s0
tcontext=system_u:object_r:usr_t:s0 tclass=file
----
time->Mon Aug 23 12:08:19 2010
type=SYSCALL msg=audit(1282561699.384:43465): arch=40000003 syscall=33
success=no exit=-13 a0=8c94b80 a1=4 a2=168ed30 a3=8c94b80 items=0
ppid=25311 pid=25312 auid=4294967295 uid=503 gid=503 euid=503 suid=503
fsuid=503 egid=503 sgid=503 fsgid=503 tty=(none) ses=4294967295
comm="clamd" exe="/usr/local/sbin/clamd"
subj=unconfined_u:system_r:clamd_t:s0 key=(null)
type=AVC msg=audit(1282561699.384:43465): avc: denied { read } for
pid=25312 comm="clamd" name="daily.cld" dev=sda6 ino=272876
scontext=unconfined_u:system_r:clamd_t:s0
tcontext=unconfined_u:object_r:usr_t:s0 tclass=file
----
time->Mon Aug 23 12:08:19 2010
type=SYSCALL msg=audit(1282561699.384:43468): arch=40000003 syscall=33
success=no exit=-13 a0=8c94c38 a1=4 a2=168ed30 a3=0 items=0 ppid=25311
pid=25312 auid=4294967295 uid=503 gid=503 euid=503 suid=503 fsuid=503
egid=503 sgid=503 fsgid=503 tty=(none) ses=4294967295 comm="clamd"
exe="/usr/local/sbin/clamd" subj=unconfined_u:system_r:clamd_t:s0
key=(null)
type=AVC msg=audit(1282561699.384:43468): avc: denied { read } for
pid=25312 comm="clamd" name="phish.ndb" dev=sda6 ino=263326
scontext=unconfined_u:system_r:clamd_t:s0
tcontext=system_u:object_r:usr_t:s0 tclass=file
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