On 7/9/19 11:40 AM, mansoor wrote:
> Hi,
> I am using OpenBSD 6.4 and php version 5.6, I am trying to execute shell
> commands through php file using exec, shell_exec or system (tried all of
> them) but none is working.
>
> Here is a sample code in my index.php file.
>
> <?php
> $output = shell_exec('ls -l');
> echo "<pre>$output</pre>";
> ?>
It's almost never a good idea to use shell_exec or system.
In this case I'd advise to use opendir+readdir and stat if you need the
file metadata.
>
> Here is link
> <https://stackoverflow.com/questions/56933389/run-exec-system-etc-command-using-php-openbsd>
>
> to my stackoverflow question.
>
> I am stuck in this problem for about a week now.
> Please help me if anyone know about this.
> Thanks
You haven't given enough information for a definitive answer, but my
guess is that you run php through php-fpm, which is by default chrooted
to /var/www. Since shell_exec and system first call /bin/sh and you
most likely didn't copy it to /var/www/bin/sh it can't find your shell.
After that you'd also need to copy the binaries (in this case ls) to
your chroot and possible library dependencies (not needed for files
under /bin).
Hope this helps for illustrative purposes, but please don't use it in
production.
martijn@
>
>
>
> --
> Sent from: http://openbsd-archive.7691.n7.nabble.com/openbsd-user-misc-f3.html
>
