Individual Domains for Particular PHP Scripts.
by Tobias
Hi SELinux users!
I've
read:
http://fedora.redhat.com/docs/selinux-apache-fc3/sn-further-approaches.ht...
My Testbed: FC4 with selinux-policy-strict-sources-1.23.16-6.
My Steps:
#ls -laZ /var/www/html/
drwxr-xr-x root root system_u:object_r:httpd_sys_content_t .
drwxr-xr-x root root system_u:object_r:httpd_sys_content_t ..
-rw-r--r-- root root system_u:object_r:httpd_php_script_a_t a.php
-rw-r--r-- root root system_u:object_r:httpd_php_script_b_t b.php
-rw-r--r-- root root system_u:object_r:httpd_sys_content_t
index.html
#cat a.php
<?php
$fp = fopen("b.php","r");
if ($fp)
{
echo "sorry, could access the another domain :-(";
}
fclose($fp);
?>
#cat myphp.te
#file types httpd_php_script_x_t
type httpd_php_script_a_t, file_type, sysadmfile;
type httpd_php_script_b_t, file_type, sysadmfile;
#process domains httpd_php_domain_x_t
type httpd_php_domain_a_t, domain, privmail;
type httpd_php_domain_b_t, domain, privmail;
#allow apache acces the new types
allow httpd_t httpd_php_script_a_t:file { getattr read };
allow httpd_t httpd_php_script_b_t:file { getattr read };
#authorize system_r for httpd_php_domain_x_t;
role system_r types httpd_php_domain_a_t;
role system_r types httpd_php_domain_b_t;
#domain auto transition
domain_auto_trans(httpd_t, httpd_php_script_a_t, httpd_php_domain_a_t);
domain_auto_trans(httpd_t, httpd_php_script_b_t, httpd_php_domain_a_t);
# make reload
#cat /selinux/enforce
1
Now, i'll expect an Error, or Acces Denied while Browseraccess
to http://localhost/a.php, but a.php reports "sorry, could access
the another domain :-(". Neither avc denied messages, nor any other Errors.
What's wrong in my policy? Doesn't works the domain auto transition
properly ? How to separate PHP Scripts in their own domains?
Any Help welcome! Thanks in Advance!
Toby
--
--
TobyD
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18 years, 10 months
ftp,smb and atalk stopped working in FC4
by pi
From FC4 ftp seems to be part of the selinux-policy. I have managed the
httpd part of it, getting different user/public_html to work, so i know
the syntax to make them ok. When it comes to ftp i cannot find anything
to read up on and the same goes for smb, wich i need for some pc´s. and
atalk for macs.
I installed proftpd in favor of vsftpd.
I know i can turn selinux protection off for the specified services,
but i want it . Can anyone hint me in the right direction here, where i
can read up on it?
Regards
/pi
18 years, 10 months
squirrelmail not working after policy update
by Bob Kashani
FC3 selinux-policy-targeted-1.17.30-3.9
Arrgh...squirrelmail is not working. I ran audit2allow and it told me to
add this:
allow httpd_t self:tcp_socket connect;
Which makes everything work now. Is this correct?
Here is the AVC error that I was getting:
Jun 17 18:32:26 sorcerer kernel: audit(1119058346.336:0): avc: denied
{ connect } for pid=3388 exe=/usr/sbin/httpd
scontext=user_u:system_r:httpd_t tcontext=user_u:system_r:httpd_t
tclass=tcp_socket
Bob
--
Bob Kashani
http://www.ocf.berkeley.edu/~bobk/garnome
18 years, 10 months
selinux cant't auto load at system bootup.
by huang mingyou
hello,all.
My system is trustix3.0 .I use the 2.6.11.11 kernel and use
selinux.install the selinux package .but the selinux can't auto load
at system bootup.I cant'f find where is error. pleases help me.
18 years, 10 months
problem with selinux-policy-targeted FC3
by Peter Magnusson
I run FC3 on an box. I have selinux enabled. Last selinux-policy-targeted
fucked up so my webserver didnt start, I think its very irresponsible of
the fedora team to fuckup a lot of peoples httpds like this.
I have;
apt-get update &>/dev/null
apt-get upgrade -y
in cron.daily.
I have many vhosts. All are in /www like /www/domain1.net /www/domain2.net
and so on. If it matters its NFS exported to an other computer running FC3.
No, I dont wanna move it to /var/www .
It would say;
Jun 19 00:32:27 sysbabe httpd: Warning: DocumentRoot [/www/eurobeat.se]
does not exist
Jun 19 00:32:27 sysbabe kernel: audit(1119133946.358:0): avc: denied {
search } for pid=30644 exe=/usr/sbin/httpd name=/ dev=hda2 ino=2
scontext=root:system_r:httpd_t tcontext=system_u:object_r:default_t
tclass=dir
Jun 19 00:32:27 sysbabe httpd: Warning: DocumentRoot [/www/eurobeat.se]
does not exist
Jun 19 00:32:27 sysbabe kernel: audit(1119133946.358:0): avc: denied {
search } for pid=30644 exe=/usr/sbin/httpd name=/ dev=hda2 ino=2
scontext=root:system_r:httpd_t tcontext=system_u:object_r:default_t
tclass=dir
Jun 19 00:32:27 sysbabe httpd: Warning: DocumentRoot [/www/eurobeat.se]
does not exist
Jun 19 00:32:27 sysbabe kernel: audit(1119133946.359:0): avc: denied {
search } for pid=30644 exe=/usr/sbin/httpd name=/ dev=hda2 ino=2
scontext=root:system_r:httpd_t tcontext=system_u:object_r:default_t
tclass=dir
Jun 19 00:32:27 sysbabe httpd: Warning: DocumentRoot [/www/eurobeat.se]
does not exist
Jun 19 00:32:27 sysbabe kernel: audit(1119133946.361:0): avc: denied {
search } for pid=30644 exe=/usr/sbin/httpd name=/ dev=hda2 ino=2
scontext=root:system_r:httpd_t tcontext=system_u:object_r:default_t
tclass=dir
on EACH subdir inside /www. I know nothing about selinux, only restorecon.
I tried restorecon -R /www/ but it didnt help.
I got some help on irc (thanks again) and did
setsebool -P httpd_disable_trans 1 and now the webserver at least work. But
I guess the PROPER way would be to set system_r:httpd_t perms on all files
inside /www ? But how do I do that without rebooting?
touch /.autorelabel and reboot... is a reboot.
18 years, 10 months
fc4 samba errors { read write } { search } { remove_name } - second part
by lastic miles
Hello!
I found some things. With the command 'audit2allow'
and the log I've got these rules:
allow nmbd_t devpts_t:chr_file { read write };
allow smbd_t devpts_t:chr_file { read write };
allow smbd_t nscd_var_run_t:dir search;
allow smbd_t samba_log_t:dir remove_name;
How and where to apply them into the security policy
on my fc4?
Thanks!
--
L. Miles
____________________________________________________
Yahoo! Sports
Rekindle the Rivalries. Sign up for Fantasy Football
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18 years, 10 months
problems with selinux and amsn
by Felipe Sánchez
Hi there, well i think i have a problem with selinux policy and amsn, turns
out that after one upgrade amsn stoped working, then it says that i have to
download the TLS module, wich i had before, i download it but keeps doing
the same, then i googled a litle and some people had that problem and fixed
it installing another tls module, i installed tls1.5, nothing happened, i
use fedora 3. Then i tryed in fedora 4 and i have the same problem. Really i
need some help, my sister is killing ME!!!! ;-) we only use linux...
18 years, 10 months
NIS trouble after update of targeted policy
by Aleksandar Milivojevic
In continuation to my pervious mail to this list (subject was
"selinux-policy-targeted and logrotate", but was really more about upgrading
from 1.17.30-2.88 to 1.17.30-3.6).
After I upgraded to selinux-policy-targeted-1.17.30-3.6 (Daniel's rhel4u2 RPM),
several appliactions contolled by targeted policy started complaining about
something that looks like lookups to NIS maps were denied. The testing box in
question is in permissive mode, so there might be much more of those for boxes
running in enforcing mode.
The logs are in attachment.
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Jun 17 10:06:58 mybox kernel: audit(1119020818.412:0): avc: denied { search } for pid=2542 comm=ntpd name=yp dev=dm-2 ino=112001 scontext=user_u:system_r:ntpd_t tcontext=system_u:object_r:var_yp_t tclass=dir
Jun 17 10:06:58 mybox kernel: audit(1119020818.415:0): avc: denied { read } for pid=2542 comm=ntpd name=milivojevic.org.2 dev=dm-2 ino=112005 scontext=user_u:system_r:ntpd_t tcontext=user_u:object_r:var_yp_t tclass=file
Jun 17 10:06:58 mybox kernel: audit(1119020818.419:0): avc: denied { name_bind } for pid=2542 comm=ntpd src=1022 scontext=user_u:system_r:ntpd_t tcontext=system_u:object_r:reserved_port_t tclass=udp_socket
Jun 17 10:06:58 mybox kernel: audit(1119020818.422:0): avc: denied { name_bind } for pid=2542 comm=ntpd src=1023 scontext=user_u:system_r:ntpd_t tcontext=system_u:object_r:reserved_port_t tclass=tcp_socket
Jun 17 10:06:59 mybox kernel: audit(1119020819.077:0): avc: denied { search } for pid=2576 comm=postmaster name=nscd dev=dm-2 ino=464004 scontext=user_u:system_r:postgresql_t tcontext=system_u:object_r:nscd_var_run_t tclass=dir
Jun 17 10:07:07 mybox kernel: audit(1119020827.010:0): avc: denied { search } for pid=2642 comm=httpd name=nscd dev=dm-2 ino=464004 scontext=user_u:system_r:httpd_t tcontext=system_u:object_r:nscd_var_run_t tclass=dir
Jun 17 10:07:12 mybox kernel: audit(1119020832.905:0): avc: denied { search } for pid=2827 comm=httpd name=yp dev=dm-2 ino=112001 scontext=user_u:system_r:httpd_t tcontext=system_u:object_r:var_yp_t tclass=dir
Jun 17 10:07:12 mybox kernel: audit(1119020832.905:0): avc: denied { read } for pid=2827 comm=httpd name=milivojevic.org.2 dev=dm-2 ino=112005 scontext=user_u:system_r:httpd_t tcontext=user_u:object_r:var_yp_t tclass=file
Jun 17 10:07:12 mybox kernel: audit(1119020832.906:0): avc: denied { name_bind } for pid=2827 comm=httpd src=883 scontext=user_u:system_r:httpd_t tcontext=system_u:object_r:reserved_port_t tclass=udp_socket
Jun 17 10:07:12 mybox kernel: audit(1119020832.906:0): avc: denied { name_bind } for pid=2827 comm=httpd src=884 scontext=user_u:system_r:httpd_t tcontext=system_u:object_r:reserved_port_t tclass=tcp_socket
Jun 17 10:07:12 mybox kernel: audit(1119020832.907:0): avc: denied { connect } for pid=2827 comm=httpd lport=884 scontext=user_u:system_r:httpd_t tcontext=user_u:system_r:httpd_t tclass=tcp_socket
Jun 17 10:07:13 mybox kernel: audit(1119020833.376:0): avc: denied { name_bind } for pid=2891 comm=httpd src=953 scontext=user_u:system_r:httpd_t tcontext=system_u:object_r:rndc_port_t tclass=tcp_socket
Jun 17 10:09:05 mybox kernel: audit(1119020945.663:0): avc: denied { search } for pid=2887 comm=httpd name=yp dev=dm-2 ino=112001 scontext=user_u:system_r:httpd_t tcontext=system_u:object_r:var_yp_t tclass=dir
18 years, 10 months
selinux-policy-targeted and logrotate
by Aleksandar Milivojevic
I've installed selinux-policy-targeted-1.17.30-2.88 from RHEL4 U1 on my system.
It fixed number of problems with /tmp mounted as tmpfs (and hence having context
of tmpfs_t, instead of tmp_t). However, I'm still noticing one problem.
Logrotate postrotate scripts fail. Log files show it was SELinux blocking
them:
Jun 16 04:02:23 mybox kernel: audit(1118912543.190:0): avc: denied { associate
} for pid=28151 comm=logrotate name=logrotate.8npXq2
scontext=system_u:object_r:var_t tcontext=system_u:object_r:tmpfs_t
tclass=filesystem
Jun 17 04:02:18 mybox kernel: audit(1118998938.340:0): avc: denied { associate
} for pid=6006 comm=logrotate name=logrotate.aNF9be
scontext=system_u:object_r:var_t tcontext=system_u:object_r:tmpfs_t
tclass=filesystem
As I was typing this email, I noticed Daniel already have SELinux/RHEL4/u2
directory, and chagelog indicated problem with logrotate and tmpfs was tackled
after version 1.17.30-2.88 was released. So I downloaded
selinux-policy-targeted-1.17.30-3.6 and installed it on test system. I noticed
small problem with postinstall script. It calls /sbin/restorecon, and it seems
to be relabeling all my file systems as I type this (taking a looong time).
Not sure if this would be good idea on production systems that might have some
directories with custom labels. For example, I have chrooted Apache on one of
my systems, and relabeling would destroy it since all the files in chroot jail
would be reset to wrong labels. Also, if I used chcon to give some application
access to files in non-default area, relabeling entire file system would trash
those too.
Another problem I noticed was that file_contexts and policy.18 files were
created as dot rpmnew, and than restorecon complains about "invalid labels" or
something like that (can't cut&paste it or look exact wording, it scrolled off
very fast, I hardly spotted that newrpm thing). I guess there are some new
types defined in updated policy, but since policy file was created as rpmnew,
the script simply reloaded old policy file, and kernel didn't knew about new
types.
Anyhow, I believe I had original policy.18 and file_contexts as installed by
previous version of the package. Shouldn't in this case RPM install new files
instead of creating them as rpmnew?
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18 years, 10 months
