Hi Dan

On Wednesday, February 25, 2015, Dan Ackroyd <dan...@basereality.com> wrote:

> On 25 February 2015 at 00:09, Pádraic Brady <padraic.br...@gmail.com
> <javascript:;>> wrote:
> >
> > Your example omitted the image validation step which would have
> > noticed your attempt to upload a phar immediately. Add that and try
> > again.
>
> Image validation is no defense against this type of attack:
>
>
> http://php.webtutor.pl/en/2011/05/13/php-code-injection-a-simple-virus-written-in-php-and-carried-in-a-jpeg-image/
>
> As soon as you have any possibility of including a file uploaded by an
> attacker, you are probably going to lose.
>
>
That was indeed my point as Yasuo has already explained earlier. Image
validation would however see a phar a mile off.

Paddy


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--
Pádraic Brady

http://blog.astrumfutura.com
http://www.survivethedeepend.com
Zend Framework Community Review Team
Zend Framework PHP-FIG Representative

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