On 12/07/2010 07:36 AM, Benjamin Franz wrote:
> On 12/06/2010 06:47 AM, Daniel J Walsh wrote:
>>
>> I agree, and would like to look at the AVC's to understand what could
>> have broken the labeling
>
> Well - since it happened again this morning, here you go. On further
> investigation in backups, I previously had the user account that I use
> for the FTP based update with its home directory set to a location
> inside the /var/www/html tree. Since that unknowingly passed this
> rule, it silently worked. It was changed to a /home/ based directory
> instead a while ago - tripping this rule. But not consistently: FTP
> appears to at least partially work outside the home tree even with the
> rule active.
>
> I *really* dislike landmines when doing routine system tasks.
>
Ok. SELinux blew up something else that was previously working on that
machine (yes - I've already done something to fix it for now. I don't
need anyone saying 'well run sealert'. Been there - done that. Things
are running now.) This repeated time suckage is why people routinely
turn it off.
sealert -l e6e017f5-9c2b-4e7b-895e-51a232042588
Summary:
SELinux is preventing the httpd from using potentially mislabeled files
/var/XXXXXXXXXX/misc/manage_clients/config.xml (var_t).
Detailed Description:
SELinux has denied the httpd access to potentially mislabeled files
/var/XXXXXXXXXX/misc/manage_clients/config.xml. This means that SELinux
will not
allow httpd to use these files. Many third party apps install html files in
directories that SELinux policy cannot predict. These directories have to be
labeled with a file context which httpd can access.
Allowing Access:
If you want to change the file context of
/var/XXXXXXXXXX/misc/manage_clients/config.xml so that the httpd daemon can
access it, you need to execute it using chcon -t httpd_sys_content_t
'/var/XXXXXXXXXX/misc/manage_clients/config.xml'. You can look at the
httpd_selinux man page for additional information.
Additional Information:
Source Context system_u:system_r:httpd_t
Target Context user_u:object_r:var_t
Target Objects
/var/XXXXXXXXXX/misc/manage_clients/config.xml [
file ]
Source httpd
Source Path /usr/sbin/httpd
Port <Unknown>
Host XXXXXXXXXX
Source RPM Packages httpd-2.2.3-43.el5.centos.3
Target RPM Packages
Policy RPM selinux-policy-2.4.6-279.el5_5.2
Selinux Enabled True
Policy Type targeted
MLS Enabled True
Enforcing Mode Enforcing
Plugin Name httpd_bad_labels
Host Name XXXXXXXXXX
Platform Linux XXXXXXXXXX 2.6.18-194.26.1.el5 #1 SMP
Tue Nov 9 12:54:40 EST 2010 i686 i686
Alert Count 3
First Seen Mon Apr 26 10:20:36 2010
Last Seen Tue Dec 7 07:38:17 2010
Local ID e6e017f5-9c2b-4e7b-895e-51a232042588
Line Numbers
Raw Audit Messages
host=XXXXXXXXXX type=AVC msg=audit(1291736297.720:6786): avc: denied {
getattr } for pid=21363 comm="httpd"
path="/var/XXXXXXXXXX/misc/manage_clients/config.xml" dev=dm-0
ino=5355222 scontext=system_u:system_r:httpd_t:s0
tcontext=user_u:object_r:var_t:s0 tclass=file
host=XXXXXXXXXX type=SYSCALL msg=audit(1291736297.720:6786):
arch=40000003 syscall=195 success=no exit=-13 a0=82e7380 a1=8297c68
a2=296ff4 a3=82e7380 items=0 ppid=3398 pid=21363 auid=4294967295 uid=48
gid=48 euid=48 suid=48 fsuid=48 egid=48 sgid=48 fsgid=48 tty=(none)
ses=4294967295 comm="httpd" exe="/usr/sbin/httpd"
subj=system_u:system_r:httpd_t:s0 key=(null)
--
Benjamin Franz
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