KDE KSSL NULL Character CA SSL Certificate Validation Security Bypass Vulnerability

BID:36229

Info

KDE KSSL NULL Character CA SSL Certificate Validation Security Bypass Vulnerability

Bugtraq ID: 36229
Class: Design Error
CVE: CVE-2009-2702
Remote: Yes
Local: No
Published: Sep 01 2009 12:00AM
Updated: Apr 13 2015 09:24PM
Credit: Dan Kaminsky and Moxie Marlinspike
Vulnerable: Ubuntu Ubuntu Linux 9.04 sparc
Ubuntu Ubuntu Linux 9.04 powerpc
Ubuntu Ubuntu Linux 9.04 lpia
Ubuntu Ubuntu Linux 9.04 i386
Ubuntu Ubuntu Linux 9.04 amd64
Ubuntu Ubuntu Linux 8.10 sparc
Ubuntu Ubuntu Linux 8.10 powerpc
Ubuntu Ubuntu Linux 8.10 lpia
Ubuntu Ubuntu Linux 8.10 i386
Ubuntu Ubuntu Linux 8.10 amd64
Ubuntu Ubuntu Linux 8.04 LTS sparc
Ubuntu Ubuntu Linux 8.04 LTS powerpc
Ubuntu Ubuntu Linux 8.04 LTS lpia
Ubuntu Ubuntu Linux 8.04 LTS i386
Ubuntu Ubuntu Linux 8.04 LTS amd64
Pardus Linux 2008 0
Mandriva Linux Mandrake 2011 x86_64
Mandriva Linux Mandrake 2011
Mandriva Linux Mandrake 2010.1 x86_64
Mandriva Linux Mandrake 2010.1
Mandriva Linux Mandrake 2010.0 x86_64
Mandriva Linux Mandrake 2010.0
Mandriva Linux Mandrake 2009.1 x86_64
Mandriva Linux Mandrake 2009.1
Mandriva Linux Mandrake 2008.0 x86_64
Mandriva Linux Mandrake 2008.0
MandrakeSoft Corporate Server 4.0 x86_64
MandrakeSoft Corporate Server 4.0
KDE KDE 3.5.4
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 armel
Debian Linux 4.0 arm
Debian Linux 4.0 amd64
Debian Linux 4.0 alpha
Debian Linux 4.0
Not Vulnerable:

Discussion

KDE KSSL NULL Character CA SSL Certificate Validation Security Bypass Vulnerability

KDE KSSL is prone to a security-bypass vulnerability because the application fails to properly validate the domain name in a signed CA certificate, allowing attackers to substitute malicious SSL certificates for trusted ones.

Successfully exploiting this issue allows attackers to perform man-in-the-middle attacks or impersonate trusted servers, which will aid in further attacks.

KDE 3.5.4 is known to be vulnerable. Other versions may be affected as well.

NOTE: This issue may be related to the issue described in BID 35888 (Mozilla NSS NULL Character CA SSL Certificate Validation Security Bypass Vulnerability). We will update this BID when more information becomes available.

Exploit / POC

KDE KSSL NULL Character CA SSL Certificate Validation Security Bypass Vulnerability

Attackers use man-in-the-middle attacks to exploit this issue.

Solution / Fix

KDE KSSL NULL Character CA SSL Certificate Validation Security Bypass Vulnerability

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


Debian Linux 4.0 arm

Mandriva Linux Mandrake 2009.1 x86_64

Ubuntu Ubuntu Linux 8.04 LTS powerpc

Ubuntu Ubuntu Linux 8.10 powerpc

Debian Linux 4.0 powerpc

Ubuntu Ubuntu Linux 8.04 LTS sparc

Ubuntu Ubuntu Linux 8.10 i386

Debian Linux 4.0 m68k

Mandriva Linux Mandrake 2008.0 x86_64

Ubuntu Ubuntu Linux 8.04 LTS amd64

Mandriva Linux Mandrake 2008.0

Mandriva Linux Mandrake 2010.1 x86_64

Ubuntu Ubuntu Linux 9.04 sparc

Mandriva Linux Mandrake 2010.0

Ubuntu Ubuntu Linux 9.04 powerpc

Ubuntu Ubuntu Linux 8.04 LTS lpia

Ubuntu Ubuntu Linux 8.10 lpia

Debian Linux 4.0 amd64

Mandriva Linux Mandrake 2010.0 x86_64

Debian Linux 4.0 ia-32

Debian Linux 4.0 hppa

Ubuntu Ubuntu Linux 9.04 i386

Debian Linux 4.0 sparc

Debian Linux 4.0 s/390

Ubuntu Ubuntu Linux 8.10 sparc

Ubuntu Ubuntu Linux 9.04 lpia

Mandriva Linux Mandrake 2010.1

Debian Linux 4.0 alpha

Debian Linux 4.0 armel

MandrakeSoft Corporate Server 4.0

Debian Linux 4.0

Mandriva Linux Mandrake 2011 x86_64

Ubuntu Ubuntu Linux 8.04 LTS i386

Debian Linux 4.0 mipsel

Mandriva Linux Mandrake 2011

Ubuntu Ubuntu Linux 9.04 amd64

Ubuntu Ubuntu Linux 8.10 amd64

Mandriva Linux Mandrake 2009.1

Debian Linux 4.0 ia-64

Debian Linux 4.0 mips

MandrakeSoft Corporate Server 4.0 x86_64

References

KDE KSSL NULL Character CA SSL Certificate Validation Security Bypass Vulnerability

References:

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