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Highly critical

Falt4 CMS Cross-Site Request Forgery and Security Bypass

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Release Date:  2009-02-17    Last Update:  2009-03-02    Views:  4,094

Secunia Advisory SA33973

Where:

From remote

Impact:

Security Bypass, Cross Site Scripting, System access

Solution Status:

Unpatched

Software:

CVE Reference(s):

Description


A security issue and a vulnerability have been discovered in Falt4 CMS, which can be exploited by malicious people to bypass certain security restrictions and conduct cross-site request forgery attacks.

1) The security issue is caused due to incorrect security restrictions on the "modules/newsletter/FCKeditor/editor/filemanager/browser/default/connectors/php/connector.php" script. This can be exploited to upload malicious PHP scripts with the e.g. pht extension to the web server.

Successful exploitation of this security issue requires a certain server configuration (e.g. an Apache server with the "mod_mime" module installed).

2) The application allows users to perform certain actions via HTTP requests without performing any validity checks to verify the requests. This can be exploited to e.g. change the administrator's password by tricking the user into visiting a malicious web site.


Solution:
Restrict access to the FCKeditor directory (e.g. using a .htaccess file).

Further details available to Secunia VIM customers

Provided and/or discovered by:
1) Sp3shial
2) d14l and marcoj

Original Advisory:
1) http://milw0rm.com/exploits/8060
2) http://packetstorm.linuxsecurity.com/0902-exploits/falt4-cms-xsrf.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: Falt4 CMS Cross-Site Request Forgery and Security Bypass

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