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Re: nginx 0day exploit for nginx + fastcgi PHP

May 21, 2010 04:46PM
On Fri, May 21, 2010 at 03:04:18PM -0400, Ian M. Evans wrote:

> On 5/21/2010 2:36 PM, Igor Sysoev wrote:
> > On Fri, May 21, 2010 at 02:26:31PM -0400, Ian Evans wrote:
> >
> >> Is this situation only pertaining to sites that allow uploads from forms?
> >>
> >> Going way back to this thread
> >> (http://www.ruby-forum.com/topic/145358#645652) in '08, I needed
> >> cgi.fix-pathinfo=1 to fix problems with paths and specific extensionless
> >> files I needed run as php.
> >>
> >> Changing cgi.fix-pathinfo=1 to 0 broke a lot of stuff.
> >
> > Could you show again how URIs should be mapped to SCRIPT_FILENAME
> > and PATH_INFO ? Modern nginx versions support named captures in regex.
> >
> >
>
> This is what you came up with in the thread back in '08:
>
> location ~ ^/(cr|news|poll|posters|photos|profile|review)(/|$) {
> root /usr/local/apache/htdocs;
> set $script_name $uri;
> set $path_info "";
>
> if ($uri ~ ^(/[^/]+)(/.*)) {
> set $script_name $1;
> set $path_info $2;
> fastcgi_pass 127.0.0.1:10004;
> }
> ...
> fastcgi_param SCRIPT_FILENAME $document_root$script_name;
> fastcgi_param PATH_INFO $path_info;
> }
> location ~ /(cr|news|poll|posters|photos|profile|review)(/|$) {
> root /usr/local/apache/htdocs;
> set $script_name $uri;
> set $path_info "";
> if ($uri ~
> ^(.*/(?:cr|news|poll|posters|photos|profile|review))(/.*)) {
> set $script_name $1;
> set $path_info $2;
> fastcgi_pass 127.0.0.1:10004;
> }
> ...
> fastcgi_param SCRIPT_FILENAME $document_root$script_name;
> fastcgi_param PATH_INFO $path_info;
> fastcgi_pass 127.0.0.1:10004;
> }
>
> The two variations were needed to handle when the extensionless php
> script file was in the root (example.com/NEWS/2006/1/24) or several
> subdirs down (example.com/tiff/2007/1/PHOTOS/16)

location ~ ^/(?<SN>cr|news|poll|posters|photos|profile|review)(?<PI>/.*$|$) {
root /usr/local/apache/htdocs;
fastcgi_pass 127.0.0.1:10004;
fastcgi_param SCRIPT_FILENAME $document_root/$SN;
fastcgi_param PATH_INFO $PI;
}

location ~ ^(?<SN>.*/(cr|news|poll|posters|photos|profile|review)(?<PI>/.*$|$) {
root /usr/local/apache/htdocs;
fastcgi_pass 127.0.0.1:10004;
fastcgi_param SCRIPT_FILENAME $document_root$SN;
fastcgi_param PATH_INFO $PI;
}


--
Igor Sysoev
http://sysoev.ru/en/

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Subject Author Posted

nginx 0day exploit for nginx + fastcgi PHP

Avleen Vig May 21, 2010 01:14PM

Re: nginx 0day exploit for nginx + fastcgi PHP

Avleen Vig May 21, 2010 01:30PM

Re: nginx 0day exploit for nginx + fastcgi PHP

Eren Türkay May 25, 2010 11:44AM

Re: nginx 0day exploit for nginx + fastcgi PHP

mike May 21, 2010 01:30PM

Re: nginx 0day exploit for nginx + fastcgi PHP

Igor Sysoev May 21, 2010 01:36PM

Re: nginx 0day exploit for nginx + fastcgi PHP

Igor Sysoev May 21, 2010 01:44PM

Re: nginx 0day exploit for nginx + fastcgi PHP

mike May 21, 2010 01:52PM

Re: nginx 0day exploit for nginx + fastcgi PHP

Igor Sysoev May 21, 2010 02:16PM

Re: nginx 0day exploit for nginx + fastcgi PHP

Ian Evans May 21, 2010 02:30PM

Re: nginx 0day exploit for nginx + fastcgi PHP

mike May 21, 2010 02:40PM

Re: nginx 0day exploit for nginx + fastcgi PHP

Igor Sysoev May 21, 2010 02:40PM

Re: nginx 0day exploit for nginx + fastcgi PHP

Ian M. Evans May 21, 2010 03:10PM

Re: nginx 0day exploit for nginx + fastcgi PHP

Igor Sysoev May 21, 2010 04:46PM

Re: nginx 0day exploit for nginx + fastcgi PHP

Ian Evans May 21, 2010 04:58PM

Re: nginx 0day exploit for nginx + fastcgi PHP

Igor Sysoev May 21, 2010 05:20PM

Re: nginx 0day exploit for nginx + fastcgi PHP

Ian Evans May 21, 2010 05:54PM

Re: nginx 0day exploit for nginx + fastcgi PHP

Igor Sysoev May 22, 2010 02:10AM

Re: nginx 0day exploit for nginx + fastcgi PHP

Ian M. Evans May 22, 2010 01:28AM

Re: nginx 0day exploit for nginx + fastcgi PHP

Igor Sysoev May 22, 2010 01:32AM

Re: nginx 0day exploit for nginx + fastcgi PHP

Ian Evans May 22, 2010 03:00AM

Re: nginx 0day exploit for nginx + fastcgi PHP

Igor Sysoev May 22, 2010 03:58AM

Re: nginx 0day exploit for nginx + fastcgi PHP

Ian M. Evans May 22, 2010 05:46AM

Re: nginx 0day exploit for nginx + fastcgi PHP

Igor Sysoev May 22, 2010 06:12AM

Re: nginx 0day exploit for nginx + fastcgi PHP

Ian M. Evans May 22, 2010 06:22AM

Re: nginx 0day exploit for nginx + fastcgi PHP

Igor Sysoev May 22, 2010 06:26AM

Re: nginx 0day exploit for nginx + fastcgi PHP

Ian M. Evans May 22, 2010 06:56AM

Re: nginx 0day exploit for nginx + fastcgi PHP

Ian M. Evans May 22, 2010 08:22AM

Re: nginx 0day exploit for nginx + fastcgi PHP

Igor Sysoev May 22, 2010 08:30AM

Re: nginx 0day exploit for nginx + fastcgi PHP

Ian M. Evans May 22, 2010 08:48AM

Re: nginx 0day exploit for nginx + fastcgi PHP

Ian M. Evans May 22, 2010 06:30PM

Re: nginx 0day exploit for nginx + fastcgi PHP

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Re: nginx 0day exploit for nginx + fastcgi PHP

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Re: nginx 0day exploit for nginx + fastcgi PHP

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Re: nginx 0day exploit for nginx + fastcgi PHP

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Re: nginx 0day exploit for nginx + fastcgi PHP

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Re: nginx 0day exploit for nginx + fastcgi PHP

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Re: nginx 0day exploit for nginx + fastcgi PHP

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Re: nginx 0day exploit for nginx + fastcgi PHP

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Re: nginx 0day exploit for nginx + fastcgi PHP

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Re: nginx 0day exploit for nginx + fastcgi PHP

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Re: nginx 0day exploit for nginx + fastcgi PHP

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Re: nginx 0day exploit for nginx + fastcgi PHP

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Re: nginx 0day exploit for nginx + fastcgi PHP

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