Multiple Vendor Radius Short Vendor-Length Field Denial Of Service Vulnerability

BID:4230

Info

Multiple Vendor Radius Short Vendor-Length Field Denial Of Service Vulnerability

Bugtraq ID: 4230
Class: Design Error
CVE: CVE-2001-1377
Remote: Yes
Local: No
Published: Mar 04 2002 12:00AM
Updated: Jul 11 2009 10:56AM
Credit: This vulnerability discovery credited to 3APA3A <[email protected]>.
Vulnerable: Yard RADIUS Yard RADIUS 1.0.19
Yard RADIUS Yard RADIUS 1.0.18
Yard RADIUS Yard RADIUS 1.0.17
Yard RADIUS Yard RADIUS 1.0.16
XTRadius XTRadius 1.2.1 beta
XTRadius XTRadius 1.1 -pre2
XTRadius XTRadius 1.1 -pre1
Turbolinux Turbolinux Workstation 8.0
Turbolinux Turbolinux Workstation 7.0
Turbolinux Turbolinux Server 8.0
Turbolinux Turbolinux Server 7.0
Turbolinux Turbolinux Server 6.5
Turbolinux Turbolinux Server 6.1
Turbolinux Turbolinux Advanced Server 6.0
OpenRADIUS OpenRADIUS 0.9.3
OpenRADIUS OpenRADIUS 0.9.2
OpenRADIUS OpenRADIUS 0.9.1
OpenRADIUS OpenRADIUS 0.9
OpenRADIUS OpenRADIUS 0.8
Miquel van Smoorenburg Cistron Radius 1.6.5
- FreeBSD FreeBSD 4.5
- FreeBSD FreeBSD 4.4
- FreeBSD FreeBSD 4.3
- FreeBSD FreeBSD 4.2
- FreeBSD FreeBSD 4.1.1
- Redhat Linux 7.1 i386
 - Redhat Linux 7.1 alpha
 - Redhat Linux 7.0 i386
 - Redhat Linux 7.0 alpha
 Miquel van Smoorenburg Cistron Radius 1.6.4
+ SuSE Linux 7.3 sparc
 + SuSE Linux 7.3 ppc
 + SuSE Linux 7.3 i386
 + SuSE Linux 7.2 i386
 + SuSE Linux 7.1 x86
 + SuSE Linux 7.1 sparc
 + SuSE Linux 7.1 ppc
 + SuSE Linux 7.1 alpha
 Miquel van Smoorenburg Cistron Radius 1.6.3
+ SuSE Linux 7.0 sparc
 + SuSE Linux 7.0 ppc
 + SuSE Linux 7.0 i386
 + SuSE Linux 7.0 alpha
 Miquel van Smoorenburg Cistron Radius 1.6.2
+ SuSE Linux 6.4 ppc
 + SuSE Linux 6.4 i386
 + SuSE Linux 6.4 alpha
 Miquel van Smoorenburg Cistron Radius 1.6.1
Miquel van Smoorenburg Cistron Radius 1.6 .0
Lucent RADIUS 2.1
Lucent RADIUS 2.0 1
Lucent RADIUS 2.0
ICRadius ICRADIUS 0.18.1
ICRadius ICRADIUS 0.18
ICRadius ICRADIUS 0.17 b
ICRadius ICRADIUS 0.17
ICRadius ICRADIUS 0.16
ICRadius ICRADIUS 0.15
ICRadius ICRADIUS 0.14
- Larry Wall Perl 5.0 05
 - Larry Wall Perl 5.0 05
 - Larry Wall Perl 5.0 05
 - MySQL AB MySQL 3.23.10
GNU Radius 0.95
GNU Radius 0.94
GNU Radius 0.93
GNU Radius 0.92.1
FreeRADIUS FreeRADIUS 0.3
FreeRADIUS FreeRADIUS 0.3
FreeRADIUS FreeRADIUS 0.2
Not Vulnerable: Yard RADIUS Yard RADIUS 1.0.20
+ 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
OpenRADIUS OpenRADIUS 0.9.4
Miquel van Smoorenburg Cistron Radius 1.6.6
- Redhat Linux 7.1 i386
 - Redhat Linux 7.1 alpha
 - Redhat Linux 7.0 i386
 - Redhat Linux 7.0 alpha
 + SuSE Linux 8.0
GNU Radius 0.96
FreeRADIUS FreeRADIUS 0.4

Discussion

Multiple Vendor Radius Short Vendor-Length Field Denial Of Service Vulnerability

RADIUS is the RFC 2865-specified Remote Authentication Dial In User Service. The protocol has been developed and implemented by numerous vendors, and used on Microsoft Windows, Unix, and Linux operating systems.

A problem has been discovered in the handling of vendor-specific options. When a RADIUS packet is passed to a client or server, neither the client nor server validate the contents of the vendor-length field. When a RADIUS packet with a vendor-length specification of less than 2 is sent, the contents of the vendor-length field is interpretted as a negative number. This number may be passed to other functions of the RADIUS server or client, resulting in an unpredictable reaction, and a likely crash of the server or client.

Exploit / POC

Multiple Vendor Radius Short Vendor-Length Field Denial Of Service Vulnerability

Currently the SecurityFocus staff 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

Multiple Vendor Radius Short Vendor-Length Field Denial Of Service Vulnerability

Solution:
TurboLinux has released a security advisory (TLSA-2003-32) containing fixes to address this issue. Users are advised to upgrade using the turbopkg tool.

Vendor fixes available:


FreeRADIUS FreeRADIUS 0.2

FreeRADIUS FreeRADIUS 0.3

FreeRADIUS FreeRADIUS 0.3

OpenRADIUS OpenRADIUS 0.8

OpenRADIUS OpenRADIUS 0.9

OpenRADIUS OpenRADIUS 0.9.1

OpenRADIUS OpenRADIUS 0.9.2

OpenRADIUS OpenRADIUS 0.9.3

GNU Radius 0.92.1

GNU Radius 0.93

GNU Radius 0.94

GNU Radius 0.95

Yard RADIUS Yard RADIUS 1.0.16

Yard RADIUS Yard RADIUS 1.0.17

Yard RADIUS Yard RADIUS 1.0.18

Yard RADIUS Yard RADIUS 1.0.19

XTRadius XTRadius 1.1 -pre2

XTRadius XTRadius 1.1 -pre1

Miquel van Smoorenburg Cistron Radius 1.6 .0

Miquel van Smoorenburg Cistron Radius 1.6.1

Miquel van Smoorenburg Cistron Radius 1.6.2

Miquel van Smoorenburg Cistron Radius 1.6.3

Miquel van Smoorenburg Cistron Radius 1.6.4

Miquel van Smoorenburg Cistron Radius 1.6.5

References

Multiple Vendor Radius Short Vendor-Length Field Denial Of Service Vulnerability

References:

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