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Oracle MySQL ALTER DATABASE Denial Of Service

Oracle MySQL ALTER DATABASE Denial Of Service
Posted Aug 3, 2010
Authored by Shane Bester

Oracle MySQL versions prior to 5.1.48 suffer from a remote ALTER DATABASE denial of service vulnerability.

tags | exploit, remote, denial of service
SHA-256 | 54e32970fd5f46c2d983206f4f21f06e18f546ef382011145c91559a74fe5923

Oracle MySQL ALTER DATABASE Denial Of Service

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A vulnerability was reported in MySQL. A remote authenticated user can cause denial of service conditions.

This issue affects versions prior to MySQL 5.1.48.

A remote authenticated user can send a specially crafted ALTER DATABASE command to cause the target server to move a data directory into a new subdirectory, causing the data directory to become unusable.

A demonstration exploit request is provided [where "<special>" is "." or ".." or is a sequence that begins with "./" or "../"]:

ALTER DATABASE `#mysql50#<special>` UPGRADE DATA DIRECTORY NAME

Vendor advisory at:

http://dev.mysql.com/doc/refman/5.1/en/news-5-1-48.html

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