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Moderately critical

Celerondude Uploader Cross-Site Scripting and File Upload

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Release Date:  2008-09-04    Last Update:  2010-01-18    Views:  5,225

Secunia Advisory SA31735

Where:

From remote

Impact:

Cross Site Scripting, System access

Solution Status:

Unpatched

CVE Reference(s):

Description


A security issue and a vulnerability have been discovered in Celerondude Uploader, which can be exploited by malicious people to conduct cross-site scripting attacks and by malicious users to compromise a vulnerable server.

1) Input passed via the "username" parameter to account.php is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.

2) The security issue is caused due to the upload.php script improperly validating uploaded files. This can be exploited to execute arbitrary PHP code by uploading a malicious PHP script with multiple extensions.

Successful exploitation of this vulnerability requires that Apache is not configured to handle the mime-type for media files with an e.g. "gif", "jpg", or "jpeg" extension.

The vulnerability and the security issue are confirmed in version 6.1. Other versions may also be affected.


Solution:
Edit the source code to ensure that input is properly sanitised. Restrict access to the upload.php script (via e.g. via .htaccess).

Provided and/or discovered by:
1) Xc0re Security Reasearch Group
2) Stink'

Original Advisory:
1) http://packetstorm.linuxsecurity.com/0809-exploits/uploader6-xss.txt

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Celerondude Uploader Cross-Site Scripting and File Upload

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