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<HTML
><HEAD
><TITLE
>Bugzilla Security</TITLE
><META
NAME="GENERATOR"
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"><LINK
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><HR
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><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="security">4.4. Bugzilla Security</H1
><TABLE
BORDER="0"
WIDTH="100%"
CELLSPACING="0"
CELLPADDING="0"
CLASS="EPIGRAPH"
><TR
><TD
WIDTH="45%"
> </TD
><TD
WIDTH="45%"
ALIGN="LEFT"
VALIGN="TOP"
><I
><P
><I
>Putting your money in a wall safe is better protection than
depending on the fact that no one knows that you hide your
money in a mayonnaise jar in your fridge.</I
></P
></I
></TD
></TR
></TABLE
><DIV
CLASS="note"
><P
></P
><TABLE
CLASS="note"
WIDTH="100%"
BORDER="0"
><TR
><TD
WIDTH="25"
ALIGN="CENTER"
VALIGN="TOP"
><IMG
SRC="../images/note.gif"
HSPACE="5"
ALT="Note"></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> Poorly-configured MySQL, Bugzilla, and FTP installations have
given attackers full access to systems in the past. Please
take these guidelines seriously, even for Bugzilla machines
hidden away behind your firewall. 80% of all computer
trespassers are insiders, not anonymous crackers.
</P
></TD
></TR
></TABLE
></DIV
><P
> Secure your installation.
<DIV
CLASS="note"
><P
></P
><TABLE
CLASS="note"
WIDTH="100%"
BORDER="0"
><TR
><TD
WIDTH="25"
ALIGN="CENTER"
VALIGN="TOP"
><IMG
SRC="../images/note.gif"
HSPACE="5"
ALT="Note"></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> These instructions must, of necessity, be somewhat vague
since Bugzilla runs on so many different platforms. If you
have refinements of these directions for specific platforms,
please submit them to <A
HREF="mailto://mozilla-webtools@mozilla.org"
TARGET="_top"
>mozilla-webtools@mozilla.org</A
>
</P
></TD
></TR
></TABLE
></DIV
>
<P
></P
><OL
TYPE="1"
><LI
><P
> Ensure you are running at least MysQL version 3.22.32 or
newer. Earlier versions had notable security holes and
poorly secured default configuration choices.
</P
></LI
><LI
><P
><EM
>There is no substitute for understanding the
tools on your system!</EM
> Read <A
HREF="http://www.mysql.com/documentation/mysql/bychapter/manual_Privilege_system.html"
TARGET="_top"
> The MySQL Privilege System</A
> until you can recite it from memory!</P
><P
> At the very least, ensure you password the "mysql -u root"
account and the "bugs" account, establish grant table
rights (consult the Keystone guide in Appendix C: The
Bugzilla Database for some easy-to-use details) that do
not allow CREATE, DROP, RELOAD, SHUTDOWN, and PROCESS for
user "bugs". I wrote up the Keystone advice back when I
knew far less about security than I do now : )
</P
></LI
><LI
><P
> Lock down /etc/inetd.conf. Heck, disable inet entirely on
this box. It should only listen to port 25 for Sendmail
and port 80 for Apache.
</P
></LI
><LI
><P
> Do not run Apache as <SPAN
CLASS="QUOTE"
>"nobody"</SPAN
>. This will
require very lax permissions in your Bugzilla directories.
Run it, instead, as a user with a name, set via your
httpd.conf file.
<DIV
CLASS="note"
><P
></P
><TABLE
CLASS="note"
WIDTH="100%"
BORDER="0"
><TR
><TD
WIDTH="25"
ALIGN="CENTER"
VALIGN="TOP"
><IMG
SRC="../images/note.gif"
HSPACE="5"
ALT="Note"></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> <SPAN
CLASS="QUOTE"
>"nobody"</SPAN
> is a real user on UNIX systems.
Having a process run as user id <SPAN
CLASS="QUOTE"
>"nobody"</SPAN
>
is absolutely no protection against system crackers
versus using any other user account. As a general
security measure, I recommend you create unique user
ID's for each daemon running on your system and, if
possible, use "chroot" to jail that process away from
the rest of your system.
</P
></TD
></TR
></TABLE
></DIV
>
</P
></LI
><LI
><P
> Ensure you have adequate access controls for the
$BUGZILLA_HOME/data/ and $BUGZILLA_HOME/shadow/
directories, as well as the $BUGZILLA_HOME/localconfig and
$BUGZILLA_HOME/globals.pl files. The localconfig file
stores your "bugs" user password, which would be terrible
to have in the hands of a criminal, while the "globals.pl"
stores some default information regarding your
installation which could aid a system cracker. In
addition, some files under $BUGZILLA_HOME/data/ store
sensitive information, and $BUGZILLA_HOME/shadow/ stores
bug information for faster retrieval. If you fail to
secure these directories and this file, you will expose
bug information to those who may not be allowed to see it.
</P
><DIV
CLASS="note"
><P
></P
><TABLE
CLASS="note"
WIDTH="100%"
BORDER="0"
><TR
><TD
WIDTH="25"
ALIGN="CENTER"
VALIGN="TOP"
><IMG
SRC="../images/note.gif"
HSPACE="5"
ALT="Note"></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> Bugzilla provides default .htaccess files to protect the
most common Apache installations. However, you should
verify these are adequate according to the site-wide
security policy of your web server, and ensure that the
.htaccess files are allowed to "override" default
permissions set in your Apache configuration files.
Covering Apache security is beyond the scope of this
Guide; please consult the Apache documentation for
details.
</P
><P
> If you are using a web server that does not support the
.htaccess control method, <EM
>you are at
risk!</EM
> After installing, check to see if
you can view the file "localconfig" in your web browser
(e.g.: <A
HREF="http://bugzilla.mozilla.org/localconfig"
TARGET="_top"
> http://bugzilla.mozilla.org/localconfig</A
>). If you can read the contents of this file, your web server has not secured your bugzilla directory properly and you must fix this problem before deploying Bugzilla. If, however, it gives you a "Forbidden" error, then it probably respects the .htaccess conventions and you are good to go.
</P
></TD
></TR
></TABLE
></DIV
><P
> When you run checksetup.pl, the script will attempt to modify various
permissions on files which Bugzilla uses. If you do not have a
webservergroup set in the localconfig file, then Bugzilla will have to
make certain files world readable and/or writable. <EM
>THIS IS
INSECURE!</EM
>. This means that anyone who can get access to
your system can do whatever they want to your Bugzilla installation.
</P
><DIV
CLASS="note"
><P
></P
><TABLE
CLASS="note"
WIDTH="100%"
BORDER="0"
><TR
><TD
WIDTH="25"
ALIGN="CENTER"
VALIGN="TOP"
><IMG
SRC="../images/note.gif"
HSPACE="5"
ALT="Note"></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> This also means that if your webserver runs all cgi scripts as the
same user/group, anyone on the system who can run cgi scripts will
be able to take control of your Bugzilla installation.
</P
></TD
></TR
></TABLE
></DIV
><P
> On Apache, you can use .htaccess files to protect access
to these directories, as outlined in <A
HREF="http://bugzilla.mozilla.org/show_bug.cgi?id=57161"
TARGET="_top"
>Bug 57161</A
> for the localconfig file, and <A
HREF="http://bugzilla.mozilla.org/show_bug.cgi?id=65572"
TARGET="_top"
> Bug 65572</A
> for adequate protection in your data/ and shadow/ directories.
</P
><P
> Note the instructions which follow are Apache-specific.
If you use IIS, Netscape, or other non-Apache web servers,
please consult your system documentation for how to secure
these files from being transmitted to curious users.
</P
><P
> Place the following text into a file named ".htaccess",
readable by your web server, in your $BUGZILLA_HOME/data
directory. <P
CLASS="literallayout"
> <Files comments> allow<br>
from all </Files> deny from all </P
>
</P
><P
> Place the following text into a file named ".htaccess",
readable by your web server, in your $BUGZILLA_HOME/
directory. <P
CLASS="literallayout"
> <Files localconfig> deny<br>
from all </Files> allow from all </P
>
</P
><P
> Place the following text into a file named ".htaccess",
readable by your web server, in your $BUGZILLA_HOME/shadow
directory. <P
CLASS="literallayout"
> deny from all </P
>
</P
></LI
></OL
>
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