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I don't think I can easily do that, sorry.<br>
<br>
On 23/05/2011 13:55, Jason Ede wrote:
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<div class="WordSection1">
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);">Jules,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);">Could you make it so were only allowed 1 active
upload stream as well? That way even if tried creating lots
of extra files whilst a larger one was uploading then it
wouldn’t work as an exploit…<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);">Jason<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31,
73, 125);"><o:p> </o:p></span></p>
<div style="border-width: medium medium medium 1.5pt;
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medium medium; border-style: solid none none;
border-color: rgb(181, 196, 223) -moz-use-text-color
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<p class="MsoNormal"><b><span style="font-size: 10pt;
font-family:
"Tahoma","sans-serif"; color:
windowtext;" lang="EN-US">From:</span></b><span
style="font-size: 10pt; font-family:
"Tahoma","sans-serif"; color:
windowtext;" lang="EN-US"> <a class="moz-txt-link-abbreviated" href="mailto:zendto-bounces@zend.to">zendto-bounces@zend.to</a>
[<a class="moz-txt-link-freetext" href="mailto:zendto-bounces@zend.to">mailto:zendto-bounces@zend.to</a>]
<b>On Behalf Of </b>Jules<br>
<b>Sent:</b> 23 May 2011 09:53<br>
<b>To:</b> ZendTo Users<br>
<b>Subject:</b> [ZendTo] Re: Antwort: Re: Zendto is
vulnerable for SQL-Injection<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><br>
<br>
On 22/05/2011 15:09, <a moz-do-not-send="true"
href="mailto:patrick.gaikowski@kaufland.com">patrick.gaikowski@kaufland.com</a>
wrote:
<o:p></o:p></p>
<p><span style="font-size: 10pt; font-family:
"Arial","sans-serif";">Hi,</span><br>
<br>
<span style="font-size: 10pt; font-family:
"Arial","sans-serif";">we engaged a
company for penetration testing of web applications and
thats why i tried to be prepared....</span><br>
<br>
<span style="font-size: 10pt; font-family:
"Arial","sans-serif";">I used the tool
"burp suite" which is a http/https proxy for intercepting
web requests / responses.
</span><o:p></o:p></p>
<ul type="disc">
<li class="MsoNormal" style="">
<span style="font-size: 10pt; font-family:
"Arial","sans-serif";">i made a
dropoff request without username / password --> only
ReCaptcha</span><o:p></o:p></li>
</ul>
<p class="MsoNormal">Definitely a bug, now fixed. Well done!<br>
<br>
<o:p></o:p></p>
<ul type="disc">
<li class="MsoNormal" style="">
<o:p> </o:p></li>
<li class="MsoNormal" style="">
<span style="font-size: 10pt; font-family:
"Arial","sans-serif";">i intercepted
the POST to dropoff.php</span><o:p></o:p></li>
</ul>
<p class="MsoNormal"><br>
<i>(See attached file: dropoff)</i><o:p></o:p></p>
<p class="MsoNormal">Great, XML, my favourite. :-)<br>
<br>
<o:p></o:p></p>
<ul type="disc">
<li class="MsoNormal" style="">
<span style="font-size: 10pt; font-family:
"Arial","sans-serif";">in the tool
you can send the POST to the repeating module and modify
the POST</span>
<o:p></o:p></li>
<li class="MsoNormal" style="">
<span style="font-size: 10pt; font-family:
"Arial","sans-serif";">i was able
the send the upload a various times --> the limit
will be the free space on the host system --></span><span
style="font-size: 10pt; font-family:
"Arial","sans-serif"; color: red;">
can be used for blow up the system and perhaps crash the
system</span><o:p></o:p></li>
</ul>
<p class="MsoNormal">If you don't complete the upload, then
you will be able to do that. Once the upload has finished,
the auth code should be removed (and now is! :-) (unless
you're a logged in user, at which point we can hunt you down
anyway).<br>
I'm not particularly worried about attacks by logged in
users. They can just repeat the entire upload process as
many times as they like anyway, uploading either the same
files or different files each time.<br>
<br>
<o:p></o:p></p>
<ul type="disc">
<li class="MsoNormal" style="">
<o:p> </o:p></li>
<li class="MsoNormal" style="">
<span style="font-size: 10pt; font-family:
"Arial","sans-serif";">i was able to
change for example the email-address of the recipient
(only the domain defined in preferences.php) in the
POST-->
</span><span style="font-size: 10pt; font-family:
"Arial","sans-serif"; color: red;">can
be used for SPAM if the email domain is not configured
correctly</span><o:p></o:p></li>
</ul>
<p class="MsoNormal">Agreed. You can indeed change the email
address of the recipient in the upload. But then again you
can just make your automated hacking system slightly more
clever and do multiple uploads to anyone you like in the the
preferences.php configured domain. So I am not worried about
that either.<br>
<br>
<o:p></o:p></p>
<p class="MsoNormal"><br>
<span style="font-size: 10pt; font-family:
"Arial","sans-serif";">Is it possible
to limit the lifetime of the
</span><span style="font-size: 10pt; font-family:
"Arial","sans-serif"; color: red;">auth-Parameter</span><span
style="font-size: 10pt; font-family:
"Arial","sans-serif";"> to only one
request?
</span><o:p></o:p></p>
<p class="MsoNormal">Well spotted, yes that is a bug. Fixed.
That should take care of the multiple uploads exploits you
found above too.<br>
<br>
Many thanks for finding these for me, it is much
appreciated!<br>
<br>
Cheers,<br>
<br>
<o:p></o:p></p>
<pre>Jules<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>-- <o:p></o:p></pre>
<pre>Julian Field MEng CITP CEng<o:p></o:p></pre>
<pre><a moz-do-not-send="true" href="http://www.Zend.To">www.Zend.To</a><o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>Follow me at twitter.com/JulesFM<o:p></o:p></pre>
<pre>PGP footprint: EE81 D763 3DB0 0BFD E1DC 7222 11F6 5947 1415 B654<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>'All programs have a desire to be useful' - Tron, 1982<o:p></o:p></pre>
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<br>
<pre class="moz-signature" cols="72">Jules
--
Julian Field MEng CITP CEng
<a class="moz-txt-link-abbreviated" href="http://www.Zend.To">www.Zend.To</a>
Follow me at twitter.com/JulesFM
PGP footprint: EE81 D763 3DB0 0BFD E1DC 7222 11F6 5947 1415 B654
'All programs have a desire to be useful' - Tron, 1982
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