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>> WordPress Cookies Processing Authentication Bypass Weakness
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Title : WordPress Cookies Processing Authentication Bypass Weakness
VUPEN ID : VUPEN/ADV-2007-3941
CVE ID : CVE-2007-6013
Rated as : Low Risk 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2007-11-21
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A security weakness has been identified in WordPress, which could potentially be exploited by attackers to bypass security restrictions. This issue is caused due to the application using cookie values based on the MD5 hash of a password MD5 hash, which could be exploited by an attacker with read access to the "wp_user" table of a database to gain unauthorized administrative access to a vulnerable application.
Note: This issue is reportedly being exploited in the wild.
Affected Products
WordPress version 2.3.1 and prior
Solution
VUPEN Security is not aware of any vendor-supplied patch.
References
http://www.vupen.com/english/advisories/2007/3941
http://www.cl.cam.ac.uk/~sjm217/advisories/wordpress-cookie-auth.txt
Credits
Vulnerability reported by Steven J. Murdoch.
ChangeLog
2007-11-21 : Initial release
Vulnerability Management
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