Re: advice request for shared hosting and security issue
Would apparmor be of any use in this instance?
On 23/06/2013, at 10:24 PM, Matus UHLAR - fantomas <uhlar@fantomas.sk> wrote:
> On 23.06.13 14:48, Oğuz Yarımtepe wrote:
>> I have a Debian Squeeze web server running PHP-FPM, fastcgi with apache2. I
>> used dotdeb sources to install php-fpm and fastcgi. There are many vhosts
>> defined on them, each has their own pool configuration and working without
>> problems.
>>
>> My current problem is about the PhpSpy program. It is a PHP file that runs
>> dir, chdir, readdir commands and let the user traverse the file system and
>> read files. I couldn't figured it out a solution for it.
>>
>> I used chroot option at the pool configuration which didn't worked. It
>> seems there is a but with Apache2 and Fastcgi usage. I enabled suexec also
>> which didn't helped.
>>
>> I can try to disable opendir, chdir commands globally then some php files
>> under vhost directories will be broken.
>>
>> What is the solution? Should i set chroot? If so how? Any working
>> combination will be great for Debian Squeeze.
>>
>> I will be appreciated if there is an easier solution also.
>
>
> I have tried to avoid something like this by using PHP compiled without
> modules like posix,pcntl (maybe others?) and building special chroot that
> only contained binaries of apache, php, used modules, and required
> libraries. It required small /dev (containing zero, null, urandom), small
> /etc (containing stripped pasword, group and some others) and system with
> /only a few libraries and directories.
>
> It's doable but quite a pain to maintain.
>
> other possibility is to use something similar to linux vservers with only
> needed things built in.
>
> --
> Matus UHLAR - fantomas, uhlar@fantomas.sk ; http://www.fantomas.sk/
> Warning: I wish NOT to receive e-mail advertising to this address.
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>
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