GLSA 200611-10: WordPress: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	WordPress: Multiple vulnerabilities
Date:	11/17/2006
Bugs:	#153303
ID:	200611-10

Synopsis

Flaws in WordPress allow a Denial of Service, the disclosure of user metadata and the overwriting of restricted files.

Background

WordPress is a PHP and MySQL based multiuser blogging system.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
www-apps/wordpress	< 2.0.5	>= 2.0.5	All supported architectures

Description

"random" discovered that users can enter serialized objects as strings in their profiles that will be harmful when unserialized. "adapter" found out that user-edit.php fails to effectively deny non-permitted users access to other user's metadata. Additionally, a directory traversal vulnerability in the wp-db-backup module was discovered.

Impact

By entering specially crafted strings in his profile, an attacker can crash PHP or even the web server running WordPress. Additionally, by crafting a simple URL, an attacker can read metadata of any other user, regardless of their own permissions. A user with the permission to use the database backup plugin can possibly overwrite files he otherwise has no access to.

Workaround

There is no known workaround at this time.

Resolution

All WordPress users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-apps/wordpress-2.0.5"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200611-10.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.