X.Org XFS Init Script Insecure Temporary File Creation Vulnerability

BID:24888

Info

X.Org XFS Init Script Insecure Temporary File Creation Vulnerability

Bugtraq ID: 24888
Class: Race Condition Error
CVE: CVE-2007-3103
Remote: No
Local: Yes
Published: Jul 12 2007 12:00AM
Updated: Apr 13 2015 09:44PM
Credit: An anonymous reporter discovered this issue. This issue as disclosed in the referenced iDefense advisory.
Vulnerable: X.org xfs 1.0.2
X.org xfs 1.0.1
X.org X11R6 6.8.2
+ Mandriva Linux Mandrake 10.2 x86_64
 + Mandriva Linux Mandrake 10.2
+ Ubuntu Ubuntu Linux 5.0 4 powerpc
 + Ubuntu Ubuntu Linux 5.0 4 i386
 + Ubuntu Ubuntu Linux 5.0 4 amd64
 rPath rPath Linux 1
Redhat Fedora Core6
Redhat Enterprise Linux WS 4
Redhat Enterprise Linux ES 4
Redhat Enterprise Linux Desktop 5 client
Redhat Enterprise Linux AS 4
Redhat Enterprise Linux 5 Server
Redhat Desktop 4.0
Gentoo Linux
Foresight Linux Foresight Linux 1.1
Debian Linux 4.0 sparc
Debian Linux 4.0 s/390
Debian Linux 4.0 powerpc
Debian Linux 4.0 mipsel
Debian Linux 4.0 mips
Debian Linux 4.0 m68k
Debian Linux 4.0 ia-64
Debian Linux 4.0 ia-32
Debian Linux 4.0 hppa
Debian Linux 4.0 arm
Debian Linux 4.0 amd64
Debian Linux 4.0 alpha
Debian Linux 4.0
Avaya Messaging Storage Server MM3.0
Not Vulnerable:

Discussion

X.Org XFS Init Script Insecure Temporary File Creation Vulnerability

The X Font Server (XFS) creates temporary files in an insecure manner.

An attacker with local access could potentially exploit this issue to perform symlink attacks to alter the permissions of an arbitrary attacker-supplied file.

Exploit / POC

X.Org XFS Init Script Insecure Temporary File Creation Vulnerability

An attacker uses readily available commands to exploit the issue.

The following exploit code is available:

Solution / Fix

X.Org XFS Init Script Insecure Temporary File Creation Vulnerability

Solution:
Updates are available. Please see the references for more information.


X.org xfs 1.0.1

References

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