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Insecure Library Loading
Not critical

Drupal Captcha Module Security Bypass

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Release Date:  2007-01-31    Last Update:  2007-02-05    Views:  10,098

Secunia Advisory SA23983

Where:

From remote

Impact:

Security Bypass

Solution Status:

Vendor Patch

CVE Reference(s):

Description


A weakness has been reported in the Captcha module for Drupal, which can be exploited by malicious people to bypass certain security restrictions.

The weakness is caused due to an error within the validation of certain malformed responses. This can be exploited to bypass the captcha check by sending a specially crafted response.

The weakness is reported in Captcha 4.7.x versions prior to 4.7-1.2 and Captcha 5.x versions prior to 5.x-1.1.


Solution:
Update to a fixed version.

Further details available to Secunia VIM customers

Provided and/or discovered by:
Independently reported by the Drupal Security Team and William Smith.

Original Advisory:
http://drupal.org/node/114364

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 Captcha Module Security Bypass

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