Patching Spip for forum.php3 vulnerability
Baptiste SIMON (aka BeTa)
e-glop.net
beta@e-glop.net
16 mars 2004
2003
Baptiste SIMON <baptiste.simon @ e-glop.net>
Nantes, France, Europe
version 1.0
This document aims to give the keys for lambda users to upgrade their
Spip-1.4.2, Spip-1.5.2 or Spip-1.6 to a patched fully-compatible version.
The files on which we work on can be found at [ http://www.e-glop.net/dev/spip/ ]
Files description
http://www.e-glop.net/dev/spip/SPIP-v1-4-3.patch.gz
Patch to upgrade from SPIP-v1.4.2 to SPIP-v1.4.3
http://www.e-glop.net/dev/spip/SPIP-v1-4-3.inc-forum.php3.gz
Patched file to replace in SPIP-v1.4.2 to upgrade to SPIP-v1.4.3
http://www.e-glop.net/dev/spip/SPIP-v1-5-3.patch.gz
Patch to upgrade from SPIP-v1.5.2 to SPIP-v1.5.3
http://www.e-glop.net/dev/spip/SPIP-v1-5-3.inc-forum.php3.gz
Patched file to replace in SPIP-v1.5.2 to upgrade to SPIP-v1.5.3
http://www.e-glop.net/dev/spip/SPIP-v1-6-1.patch.gz
Patch to upgrade from SPIP-v1.6 to SPIP-v1.6.1
http://www.e-glop.net/dev/spip/SPIP-v1-6-1.inc-forum.php3.gz
Patched file to replace in SPIP-v1.6 to upgrade to SPIP-v1.6.1
http://www.e-glop.net/dev/spip/spip-cert.txt
The official security announce
http://www.e-glop.net/dev/spip/upgrading.*
This "howto" in different formats.
Upgrading from patch (the regular and prefered choice)
Needs
You need :
a shell access to your website's sources,
the "patch" package installed. You can certainly found it in your
distribution's packages manager as "patch". In anyway, this
is the official *patch* website,
the "gzip" package installed. You can certainly found it in your
distribution's packages manager as "gzip". In anyway, this
is the official *gzip* website,
the "wget" package is also recommanded. You can certainly found it in your
distribution's packages manager as "wget". In anyway, this
is the official *wget* website.
Proceeding...
That is the way to patch your website's sources
$ cd /path/to/your/spip/dir
$ wget http://www.e-glop.net/dev/spip/SPIP-v1-5-3.patch.gz (or whatever version you are running)
$ zcat SPIP-v1-5-3.patch.gz | patch -p1
Replace the name 'SPIP-v1-5-3.patch.gz' with the patch version you need for your current Spip website.
Upgrading without patching
Needs
Duplicate implicit target name: "needs".
You need
to be able to gunzip the files. If you're running any UNIX, try to find the gunzip command.
If you don't find it, try to install it the way you use to do. The gunzip command can be found
in the gzip package.
the "wget" package is also recommanded. You can certainly found it in your distribution's
packages manager as "wget". In anyway, this is the official *wget* website. If you are not
using wget (because you prefer another software or because you're running the Microsoft OS),
replace the wget command line by the software you prefer.
Proceeding...
Duplicate implicit target name: "proceeding...".
To replace the vulnerable script in your website's sources, please download the pre-pathed file
corresponding to your Spip version. The patched files can be found at URL like :
'http://www.e-glop.net/dev/spip/SPIP-v1-5-3.inc-forum.php3.gz'. To find the file you need, please
refer to the files listed at the top of this document.
Once you've got it, gunzip it and replace your website's 'inc-forum.php3' file with this one.
Here is a script example for UNIX users
$ cd /path/to/your/spip/dir
$ wget http://www.e-glop.net/dev/spip/SPIP-v1-5-3.inc-forum.php3.gz (or whatever version you are running)
$ gunzip SPIP-v1-5-3.inc-forum.php3.gz
$ mv -f SPIP-v1-5-3.inc-forum.php3 inc-forum.php3
And...
That's done !
Please verify if your website is protected against the forum.php3 vulnerability by trying to reproduce
the scenario described in the cert© document that you can find here.
If your website is still vulnerable, please retry patching once again, and then, contact me and
the spip development team to report your problem.
Annexes
The author
Baptiste SIMON <baptiste.simon @ e-glop.net>
Administrateur système GNU/Linux & UNIX
In the search of an employment
Publication License
This document from www.e-glop.net is published under the Open Publication License.
Permission is granted to copy, distribute and/or modify this document under the terms of
the Open Publication License version 1.0.