Red Hat Bugzilla – Bug 242907
CVE-2007-3103 init.d xfs script chown race condition vulnerability
Last modified: 2007-11-30 17:07:29 EST
Local exploitation of a race condition vulnerability in init.d XFS (X Font
Server) script allows an attacker to elevate their privileges to root.
The XFS script is vulnerable to a race condition when it is started by init, or
by a system administrator. Specifically, it insecurely changes the file
permissions of a temporary file. This allows an attacker to make any file on the
system world writable.
Successful exploitation of this vulnerability results in an attacker gaining
root privileges on the affected system. However, in order to exploit this, it is
necessary for either the system to be rebooted, or for the administrator to
manually restart the XFS.
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.