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Secunia is proud to announce the availability of the Secunia Software
Inspector.

The Secunia Software Inspector is a free service that detects insecure
versions of software that you may have installed in your system. When
insecure versions are detected, the Secunia Software Inspector also
provides thorough guidelines for updating the software to the latest
secure version from the vendor.

Try it out online:
http://secunia.com/software_inspector/

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TITLE:
WordPress User Account Enumeration Weakness

SECUNIA ADVISORY ID:
SA23621

VERIFY ADVISORY:
http://secunia.com/advisories/23621/

CRITICAL:
Not critical

IMPACT:
Exposure of system information

WHERE:
>From remote

SOFTWARE:
WordPress 2.x
http://secunia.com/product/6745/

DESCRIPTION:
Kad has discovered a weakness 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 version 2.0.5. 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:
Kad

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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