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Insecure Library Loading
Not critical

WordPress User Account Enumeration Weakness

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Release Date:  2007-01-05    Last Update:  2011-04-26    Views:  20,272

Secunia Advisory SA23621

Where:

From remote

Impact:

Exposure of system information

Solution Status:

Unpatched

CVE Reference(s):

No CVE references.

Description


A weakness has been discovered in WordPress, which can be exploited by malicious people to identify valid user accounts.

Different error messages are returned depending on whether an unsuccessful login attempt is performed with a valid or invalid username.

Also, the product does not block people after a certain amount of failed login attempts.

The weakness is confirmed in versions 2.0.5 and 3.1.1 and reported in version 1.5. Other versions may also be affected.


Solution:
Edit the source code to ensure that a single general error message is returned on a failed login. Restrict access to the "wp-login.php" script (e.g. with ".htaccess").

Provided and/or discovered by:
jk, Kad, and ^Xecuti0n3r

Original Advisory:
http://trac.wordpress.org/ticket/1129

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: WordPress User Account Enumeration Weakness

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