6.2
CVSSv2

CVE-2007-3103

Published: 15/07/2007 Updated: 16/10/2018
CVSS v2 Base Score: 6.2 | Impact Score: 10 | Exploitability Score: 1.9
VMScore: 625
Vector: AV:L/AC:H/Au:N/C:C/I:C/A:C

Vulnerability Summary

The init.d script for the X.Org X11 xfs font server on various Linux distributions might allow local users to change the permissions of arbitrary files via a symlink attack on the /tmp/.font-unix temporary file.

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fedoraproject fedora core 6.0

redhat enterprise linux 4.0

redhat enterprise linux desktop 4.0

redhat linux

Vendor Advisories

It was discovered that a race condition in the initd script of the X Font Server allows the modification of file permissions of arbitrary files if the local administrator can be tricked into restarting the X font server For the oldstable distribution (sarge) xfs is present as part of the monolithic xfree86 package A fix will be provided along wi ...

Exploits

#!/bin/sh # Xorg-x11-xfs Race Condition Vuln local root exploit (CVE-2007-3103) # # Another lame xploit by vl4dZ :)) works on redhat el5 and before # # $ id # uid=1001(kecos) gid=1001(user) groups=1001(user) # $ sh xfs-RaceCondition-root-exploitsh # [*] Generate large data file in /tmp/font-unix # [*] Wait for xfs service to be (re)starte ...
XOrg xorg-x11-xfs versions 102-31 and below local race condition exploit ...