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Drupal Cross-Site Request Forgery and Security Bypass

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Release Date:  2008-08-14    Views:  6,467

Secunia Advisory SA31460

Where:

From remote

Impact:

Security Bypass, Cross Site Scripting, Manipulation of data, Exposure of sensitive information

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

No CVE references.

Description


Two vulnerabilities have been reported in Drupal, which can be exploited by malicious users to bypass certain security restrictions, and by malicious people to conduct cross-site request forgeries.

1) A vulnerability is caused due to the application allowing users to perform certain actions via HTTP requests without performing any validity checks to verify the request. This can be exploited to submit cached forms and forms containing AHAH elements and upload files, by enticing a logged-in user to visit a malicious web page.

2) A vulnerability is caused due to improper access restriction in the Upload module. This can be exploited to edit nodes, delete files, and download attachments without having valid access rights.

Successful exploitation of this vulnerability requires valid user credentials with the "upload files" permission.

The vulnerabilities are reported in all 6.x versions prior to 6.4.


Solution:
Update to version 6.4.

Provided and/or discovered by:
1) Heine Deelstra, Drupal security team
2) Damien Tournoud and John Morahan, Drupal security team and Caroline Schnapp

Original Advisory:
DRUPAL-SA-2008-047:
http://drupal.org/node/295053

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: Drupal Cross-Site Request Forgery and Security Bypass

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