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Re: Possible widespread PHP configuration issue - security risk

August 27, 2010 12:22PM
Ed W Wrote:
-------------------------------------------------------
> Look, not had a lot of success raising this
> quietly. The Nginx wiki
> has a number of very insecure PHP configuration
> suggestions. Anyone
> using these example configurations should
> immediately review their
> configuration and ensure that they aren't
> vulnerable to an upload attack
> where uploaded files might be accidentally treated
> as executable files
> by nginx
>

More discussion and proposed fixes here: http://forum.nginx.org/read.php?2,88845,88996

In addition to:

1. disabling .php execution in upload directories;
2. adding a try_files to your .php location to check that the requested .php file exists;
you can also change this setting in php.ini

cgi.fix_pathinfo=1

to

cgi.fix_pathinfo=0

to disable that feature and then use

location ~ ^(.+\.php)(.*)$ {
try_files $uri =404;
include /etc/nginx/fastcgi_params;
fastcgi_index index.php;
fastcgi_split_path_info ^(.+\.php)(.*)$;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_param PATH_INFO $fastcgi_path_info;
fastcgi_pass http://localhost:9000;
}

if you have software that needs the path_info feature. The only thing I use that does is chive.

Thanks in advance for updating the wiki
Subject Author Posted

Possible widespread PHP configuration issue - security risk

Ed W August 27, 2010 11:28AM

Re: Possible widespread PHP configuration issue - security risk

zuborg August 27, 2010 11:47AM

Re: Possible widespread PHP configuration issue - security risk

Jim Ohlstein August 27, 2010 11:50AM

Re: Possible widespread PHP configuration issue - security risk

Ed W August 27, 2010 12:10PM

Re: Possible widespread PHP configuration issue - security risk

Jim Ohlstein August 27, 2010 12:18PM

Re: Possible widespread PHP configuration issue - security risk

Ed W August 27, 2010 12:30PM

Re: Possible widespread PHP configuration issue - security risk

vesperto August 27, 2010 12:36PM

Re: Possible widespread PHP configuration issue - security risk

Ed W August 27, 2010 12:48PM

Re: Possible widespread PHP configuration issue - security risk

Cliff Wells August 27, 2010 01:14PM

Re: Possible widespread PHP configuration issue - security risk

Ed W August 27, 2010 01:24PM

Re: Possible widespread PHP configuration issue - security risk

Cliff Wells August 27, 2010 01:50PM

Re: Possible widespread PHP configuration issue - security risk

Ed W August 27, 2010 01:54PM

Re: Possible widespread PHP configuration issue - security risk

Ed W August 27, 2010 01:52PM

Re: Possible widespread PHP configuration issue - security risk

ubitux August 27, 2010 01:56PM

Re: Possible widespread PHP configuration issue - security risk

Cliff Wells August 27, 2010 02:10PM

Re: Possible widespread PHP configuration issue - security risk

Cliff Wells August 27, 2010 02:16PM

Re: Possible widespread PHP configuration issue - security risk

mike August 27, 2010 02:22PM

Re: Possible widespread PHP configuration issue - security risk

Cliff Wells August 27, 2010 02:44PM

Re: Possible widespread PHP configuration issue - security risk

Ed W August 28, 2010 06:38AM

Re: Possible widespread PHP configuration issue - security risk

brianmercer August 27, 2010 12:22PM

Re: Possible widespread PHP configuration issue - security risk

Ed W August 27, 2010 12:26PM

Re: Possible widespread PHP configuration issue - security risk

Ed W August 27, 2010 12:46PM

Re: Possible widespread PHP configuration issue - security risk

brianmercer August 27, 2010 01:17PM

Re: Possible widespread PHP configuration issue - security risk

Maxim Dounin August 27, 2010 01:26PM

Re: Possible widespread PHP configuration issue - security risk

Boris Dolgov August 27, 2010 01:26PM

Re: Possible widespread PHP configuration issue - security risk

Ed W August 27, 2010 01:38PM

Re: Possible widespread PHP configuration issue - security risk

Ed W August 27, 2010 12:52PM

Re: Possible widespread PHP configuration issue - security risk

Raina Gustafson August 27, 2010 01:02PM

Re: Possible widespread PHP configuration issue - security risk

Ensiferous August 30, 2010 12:46PM



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