WordPress account enumeration
| wordpress-account-enumeration (31262) |  Medium Risk |
Description:
WordPress could allow a remote attacker to determine valid usernames. WordPress returns different error messages depending on whether a valid username has been entered during a login attempt. Additionally, there is no restriction for the number of invalid login attempts to the application. An attacker could use this information to enumerate valid usernames and perform dictionary or brute force attacks to gain access to the application.
Platforms Affected:
- Gentoo, Linux
- WordPress, WordPress 2.x and prior
Remedy:
For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 200701-10 for patch, upgrade, or suggested workaround information. See References.
Consequences:
Gain Access
References:
- BugTraq Mailing List, Wed Jan 03 2007 - 11:23:26 CST , Wordpress <= 2.x dictionnary & Bruteforce attack at http://archives.neohapsis.com/archives/bugtraq/2007-01/0117.html.
- WordPress Web site, WordPress at http://wordpress.org/.
- CVE-2007-0109: wp-login.php in WordPress 2.0.5 and earlier displays different error messages if a user exists or not, which allows remote attackers to obtain sensitive information and facilitates brute force attacks.
- GLSA-200701-10: WordPress: Multiple vulnerabilities
- SA23621: WordPress User Account Enumeration Weakness
- VUPEN/ADV-2007-0062: WordPress wp-login.php Authentication Process Information Disclosure Vulnerability
Reported:
Jan 03, 2007
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