Apache HTTP Server Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition) Vulnerability - CVE-2007-1741

Multiple race conditions in suexec in Apache HTTP Server (httpd) 2.2.3 between directory and file validation and their usage allow local users to gain privileges and execute arbitrary code by renaming directories or performing symlink attacks. NOTE: the researcher who is reliable claims that the vendor disputes the issue because quotthe attacks described rely on an insecure server configurationquot in which the user quothas write access to the document root.quot