LM_sensors PWMConfig Insecure Temporary File Creation Vulnerability

BID:14624

Info

LM_sensors PWMConfig Insecure Temporary File Creation Vulnerability

Bugtraq ID: 14624
Class: Design Error
CVE: CVE-2005-2672
Remote: No
Local: Yes
Published: Aug 22 2005 12:00AM
Updated: Jul 12 2009 05:06PM
Credit: Discovery is credited to Javier Fernandez-Sanguino Pena.
Vulnerable: Redhat Fedora Core4
Redhat Fedora Core3
Redhat Enterprise Linux WS 4
Redhat Enterprise Linux ES 4
Redhat Enterprise Linux AS 4
Redhat Desktop 4.0
Mandriva Linux Mandrake 10.2 x86_64
Mandriva Linux Mandrake 10.2
Mandriva Linux Mandrake 10.1 x86_64
Mandriva Linux Mandrake 10.1
Mandriva Linux Mandrake 10.0 AMD64
Mandriva Linux Mandrake 10.0
MandrakeSoft Corporate Server 3.0 x86_64
MandrakeSoft Corporate Server 3.0
lm_sensors lm_sensors 2.9.1
lm_sensors lm_sensors 2.9
lm_sensors lm_sensors 2.8.8
+ Ubuntu Ubuntu Linux 5.0 4 powerpc
 + Ubuntu Ubuntu Linux 5.0 4 i386
 + Ubuntu Ubuntu Linux 5.0 4 amd64
 lm_sensors lm_sensors 2.8.7
lm_sensors lm_sensors 2.8.6
lm_sensors lm_sensors 2.8.4
Gentoo Linux
Debian Linux 3.1 sparc
Debian Linux 3.1 s/390
Debian Linux 3.1 ppc
Debian Linux 3.1 mipsel
Debian Linux 3.1 mips
Debian Linux 3.1 m68k
Debian Linux 3.1 ia-64
Debian Linux 3.1 ia-32
Debian Linux 3.1 hppa
Debian Linux 3.1 arm
Debian Linux 3.1 amd64
Debian Linux 3.1 alpha
Debian Linux 3.1
Not Vulnerable:

Discussion

LM_sensors PWMConfig Insecure Temporary File Creation Vulnerability

lm_sensors creates temporary files in an insecure manner. The issue exists in the 'pwmconfig' script.

Exploitation would most likely result in loss of data or a denial of service if critical files are overwritten in the attack. Other attacks may be possible as well.

lm_sensors version 2.9.1 is reportedly affected, however, other versions may be vulnerable as well.

Exploit / POC

LM_sensors PWMConfig Insecure Temporary File Creation Vulnerability

There is no exploit required.

Solution / Fix

LM_sensors PWMConfig Insecure Temporary File Creation Vulnerability

Solution:
Ubuntu has released security advisory USN-172-1 addressing this issue. Please see the referenced advisory for details on obtaining and applying the appropriate updates.

Mandriva has released advisory MDKSA-2005:149 and fixes to address this issue. Please see the referenced advisory for links to fixes.

Gentoo has released security advisory GLSA 200508-19 addressing this issue. Gentoo recommends all lm_sensors users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-apps/lm_sensors-2.9.1-r1"

Debian has released security advisory 814-1 and fixes to address this issue. Please see the referenced advisory for links to fixes.

Conectiva Linux has released security advisory CLSA-2005:1012 addressing this issue. Please see the referenced advisory for details on obtaining and applying the appropriate updates.

RedHat Fedora has released security advisories FEDORA-2005-1053 and FEDORA-2005-1054 addressing this issue for Fedora Core 3 and Core 4. Users are advised to see the referenced advisories for details on obtaining and applying the appropriate updates.

RedHat Linux has released security advisory RHSA-2005:825-13 addressing this issue for their Desktop and Enterprise editions. Please see the referenced Web advisory for further information.

--
Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.


lm_sensors lm_sensors 2.8.4

lm_sensors lm_sensors 2.8.6

lm_sensors lm_sensors 2.8.7

lm_sensors lm_sensors 2.8.8

lm_sensors lm_sensors 2.9

References

LM_sensors PWMConfig Insecure Temporary File Creation Vulnerability

References:

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