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Insecure Library Loading
Highly critical

Simple Machines Forum Multiple Vulnerabilities

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Release Date:  2008-11-05    Last Update:  2009-04-13    Views:  8,203

Secunia Advisory SA32516

Where:

From remote

Impact:

Cross Site Scripting, Exposure of sensitive information, System access

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Some vulnerabilities have been discovered in Simple Machines Forum, which can be exploited by malicious people to conduct cross-site request forgery attacks and by malicious users to disclose potentially sensitive information and compromise a vulnerable system.

1) The application allows users to perform certain actions via HTTP requests without performing any validity checks to verify the request. This can be exploited to e.g. perform certain administrative actions when a logged-in user visits a malicious site.

Successful exploitation allows e.g. to install arbitrary packages and execute arbitrary PHP code, but requires a valid user account to upload a package file as an attachment.

2) The "theme_dir" setting of users is not properly verified before being used, which can be exploited to include arbitrary files from local resources.

Successful exploitation in combination with malicious uploads (e.g. avatars) allows to execute arbitrary PHP code, but requires a valid user account.

The vulnerabilities are confirmed in version 1.1.6. Other versions may also be affected.


Solution:
Update to version 1.0.15 or 1.1.7.

Provided and/or discovered by:
1) Charles FOL
2) ~elmysterio ( a.k.a us )

Original Advisory:
Simple Machines LLC:
http://www.simplemachines.org/community/index.php?topic=272861.0

1) http://milw0rm.com/exploits/6993
2) http://milw0rm.com/exploits/7011

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: Simple Machines Forum Multiple Vulnerabilities

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