MIT Kerberos / Key Distribution Center Shared Key User Spoofing Vulnerability

BID:6714

Info

MIT Kerberos / Key Distribution Center Shared Key User Spoofing Vulnerability

Bugtraq ID: 6714
Class: Failure to Handle Exceptional Conditions
CVE: CVE-2003-0059
Remote: Yes
Local: No
Published: Jan 29 2003 12:00AM
Updated: Jul 11 2009 08:06PM
Credit: The discovery of this vulnerability has been credited to Joseph Sokol-Margolis <[email protected]> and Gerald Britton <[email protected]>.
Vulnerable: MIT Kerberos 5 1.2.2
+ MandrakeSoft Multi Network Firewall 2.0
+ Mandriva Linux Mandrake 8.2 ppc
 + Mandriva Linux Mandrake 8.2
+ Mandriva Linux Mandrake 8.1 ia64
 + Mandriva Linux Mandrake 8.1
+ Redhat Linux 7.2 ia64
 + Redhat Linux 7.2 i386
 + Redhat Linux 7.2
+ Redhat Linux 7.1 ia64
 + Redhat Linux 7.1 i386
 + Redhat Linux 7.1 alpha
 + Redhat Linux 7.1
+ Redhat Linux 7.0 i386
 + Redhat Linux 7.0 alpha
 + Redhat Linux 7.0
MIT Kerberos 5 1.2.1
MIT Kerberos 5 1.2
MIT Kerberos 5 1.1.1
- Redhat Linux 7.1 ia64
 - Redhat Linux 7.1 i386
 - Redhat Linux 7.1 alpha
 - Redhat Linux 7.1
- Redhat Linux 7.0 i386
 - Redhat Linux 7.0 alpha
 - Redhat Linux 7.0
+ Redhat Linux 6.2 sparc
 + Redhat Linux 6.2 i386
 + Redhat Linux 6.2 alpha
 + Redhat Linux 6.2
Not Vulnerable: MIT Kerberos 5 1.2.7
+ Mandriva Linux Mandrake 9.1 ppc
 + Mandriva Linux Mandrake 9.1
+ Redhat Linux 9.0 i386
 MIT Kerberos 5 1.2.6
MIT Kerberos 5 1.2.5
+ MandrakeSoft Corporate Server 2.1 x86_64
 + MandrakeSoft Corporate Server 2.1
+ Mandriva Linux Mandrake 9.0
+ Redhat Linux 8.0 i386
 + Redhat Linux 8.0
+ Turbolinux Home
+ Turbolinux Turbolinux 10 F...
 + Turbolinux Turbolinux Desktop 10.0
+ Turbolinux Turbolinux Server 8.0
+ Wirex Immunix OS 7+
 MIT Kerberos 5 1.2.4
+ Debian Linux 3.0 sparc
 + Debian Linux 3.0 s/390
 + Debian Linux 3.0 ppc
 + Debian Linux 3.0 mipsel
 + Debian Linux 3.0 mips
 + Debian Linux 3.0 m68k
 + Debian Linux 3.0 ia-64
 + Debian Linux 3.0 ia-32
 + Debian Linux 3.0 hppa
 + Debian Linux 3.0 arm
 + Debian Linux 3.0 alpha
 + Debian Linux 3.0
+ Redhat Linux 7.3 i386
 + Redhat Linux 7.3
MIT Kerberos 5 1.2.3

Discussion

MIT Kerberos / Key Distribution Center Shared Key User Spoofing Vulnerability

A vulnerability has been discovered MIT Kerberos and Key Distribution Center (KDC). It has been reported that a user within a realm implementing shared keys may be able to spoof another legitimate non-local user.

This issue is exploitable due to insufficent realm transit path verification by the affected software.

This issue affects MIT Kerberos 5 release 1.2.2 and earlier. As this issue affects older releases of Kerberos, a BID may already exist. If this is issue proves to be covered in a previous database entry, this BID will be retired and the correct BID will be updated accordingly.

Exploit / POC

MIT Kerberos / Key Distribution Center Shared Key User Spoofing Vulnerability

Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] &lt;mailto:[email protected]&gt;.

Solution / Fix

MIT Kerberos / Key Distribution Center Shared Key User Spoofing Vulnerability

Solution:
Conectiva has released a security advisory (CLA-2003:639) containing fixes which address this issue. Users are advised to upgrade as soon as possible.

MIT has confirmed this vulnerability and the issue has been addressed in version 1.2.3. Users are advised to upgrade as soon as possible.


MIT Kerberos 5 1.1.1

MIT Kerberos 5 1.2

MIT Kerberos 5 1.2.1

MIT Kerberos 5 1.2.2

References

MIT Kerberos / Key Distribution Center Shared Key User Spoofing Vulnerability

References:

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