[ GLSA 200611-10 ] WordPress: Multiple vulnerabilities

[GLSA]

Gentoo Linux Security Advisory

Title: WordPress: Multiple vulnerabilities (GLSA 200611-10)
Severity: normal
Exploitable: remote
Date: November 17, 2006
Bug(s): #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: www-apps/wordpress
Vulnerable: < 2.0.5
Unaffected: >= 2.0.5
Architectures: 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: