KDE KDM Unspecified Password Authentication Bypass Vulnerability

BID:25730

Info

KDE KDM Unspecified Password Authentication Bypass Vulnerability

Bugtraq ID: 25730
Class: Access Validation Error
CVE: CVE-2007-4569
Remote: No
Local: Yes
Published: Sep 19 2007 12:00AM
Updated: Oct 24 2007 03:07PM
Credit: Kees Huijgen is credited with the discovery of this vulnerability.
Vulnerable: Ubuntu Ubuntu Linux 7.04 sparc
Ubuntu Ubuntu Linux 7.04 powerpc
Ubuntu Ubuntu Linux 7.04 i386
Ubuntu Ubuntu Linux 7.04 amd64
Ubuntu Ubuntu Linux 6.10 sparc
Ubuntu Ubuntu Linux 6.10 powerpc
Ubuntu Ubuntu Linux 6.10 i386
Ubuntu Ubuntu Linux 6.10 amd64
Ubuntu Ubuntu Linux 6.06 LTS sparc
Ubuntu Ubuntu Linux 6.06 LTS powerpc
Ubuntu Ubuntu Linux 6.06 LTS i386
Ubuntu Ubuntu Linux 6.06 LTS amd64
SuSE SUSE Linux Enterprise Server 9
SuSE SUSE Linux Enterprise Server 8
SuSE SUSE Linux Enterprise Server 10
SuSE Linux 10.1
SuSE Linux 10.0
Slackware Linux 12.0
S.u.S.E. openSUSE 10.3
rPath rPath Linux 1
Redhat Fedora Core7
Redhat Enterprise Linux WS 4
Redhat Enterprise Linux ES 4
Redhat Enterprise Linux Desktop Workstation 5 client
Redhat Enterprise Linux Desktop 5 client
Redhat Enterprise Linux AS 4
Redhat Enterprise Linux Desktop version 4
Redhat Enterprise Linux 5 Server
Mandriva Linux Mandrake 2007.1 x86_64
Mandriva Linux Mandrake 2007.1
Mandriva Linux Mandrake 2007.0 x86_64
Mandriva Linux Mandrake 2007.0
MandrakeSoft Corporate Server 4.0 x86_64
MandrakeSoft Corporate Server 4.0
KDE KDE 3.5.7
KDE KDE 3.5.6
KDE KDE 3.5.5
KDE KDE 3.5.4
KDE KDE 3.5.3
KDE KDE 3.5.2
KDE KDE 3.5.1
KDE KDE 3.5
KDE KDE 3.4.3
KDE KDE 3.4.2
KDE KDE 3.4.1
+ Redhat Fedora Core4
KDE KDE 3.4
KDE KDE 3.3.2
+ Debian Linux 3.1 sparc
+ Debian Linux 3.1 s/390
+ Debian Linux 3.1 s/390
+ Debian Linux 3.1 s/390
+ Debian Linux 3.1 ppc
+ Debian Linux 3.1 ppc
+ Debian Linux 3.1 ppc
+ Debian Linux 3.1 mipsel
+ Debian Linux 3.1 mipsel
+ Debian Linux 3.1 mipsel
+ Debian Linux 3.1 mips
+ Debian Linux 3.1 mips
+ Debian Linux 3.1 mips
+ Debian Linux 3.1 m68k
+ Debian Linux 3.1 m68k
+ Debian Linux 3.1 m68k
+ Debian Linux 3.1 ia-64
+ Debian Linux 3.1 ia-64
+ Debian Linux 3.1 ia-64
+ Debian Linux 3.1 ia-32
+ Debian Linux 3.1 ia-32
+ Debian Linux 3.1 ia-32
+ Debian Linux 3.1 hppa
+ Debian Linux 3.1 hppa
+ Debian Linux 3.1 hppa
+ Debian Linux 3.1 arm
+ Debian Linux 3.1 arm
+ Debian Linux 3.1 arm
+ Debian Linux 3.1 amd64
+ Debian Linux 3.1 amd64
+ Debian Linux 3.1 amd64
+ Debian Linux 3.1 alpha
+ Debian Linux 3.1 alpha
+ Debian Linux 3.1 alpha
+ Debian Linux 3.1
+ Debian Linux 3.1
+ Debian Linux 3.1
KDE KDE 3.3.1
+ Redhat Fedora Core3
KDE KDE 3.3
Gentoo Linux
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
Not Vulnerable:

Discussion

KDE KDM Unspecified Password Authentication Bypass Vulnerability

KDM is prone to an authentication-bypass vulnerability under certain circumstances.

Attackers can exploit this issue to gain superuser privileges, resulting in the complete compromise of affected computers.

This issue affects KDM shipped with KDE 3.3.0 up to and including 3.5.7.

Exploit / POC

KDE KDM Unspecified Password Authentication Bypass Vulnerability

A specific exploit is not required. An attacker simply needs to know a valid username.

Solution / Fix

KDE KDM Unspecified Password Authentication Bypass Vulnerability

Solution:
The vendor released patches and an advisory to address this issue. Please see the references for more information.


Slackware Linux 12.0

KDE KDE 3.3

KDE KDE 3.3.1

KDE KDE 3.4

KDE KDE 3.4.1

KDE KDE 3.4.2

KDE KDE 3.5

KDE KDE 3.5.1

KDE KDE 3.5.2

KDE KDE 3.5.3

KDE KDE 3.5.4

KDE KDE 3.5.5

KDE KDE 3.5.6

KDE KDE 3.5.7

References

KDE KDM Unspecified Password Authentication Bypass Vulnerability

References:
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