Apache mod_auth_radius Malformed RADIUS Server Reply Integer Overflow Vulnerability

BID:12217

Info

Apache mod_auth_radius Malformed RADIUS Server Reply Integer Overflow Vulnerability

Bugtraq ID: 12217
Class: Boundary Condition Error
CVE: CVE-2005-0108
Remote: Yes
Local: No
Published: Jan 10 2005 12:00AM
Updated: Jul 12 2009 09:27AM
Credit: Discovery is credited to LSS Security <[email protected]>.
Vulnerable: mod_auth_radius mod_auth_radius 1.5.4
mod_auth_radius mod_auth_radius 1.5.2
mod_auth_radius mod_auth_radius 1.5
mod_auth_radius mod_auth_radius 1.3.9
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
Not Vulnerable:

Discussion

Apache mod_auth_radius Malformed RADIUS Server Reply Integer Overflow Vulnerability

mod_auth_radius is reported prone to an integer overflow vulnerability. This issue is due to an error in the application when handling server-supplied integer values before these values are employed as the size argument in a subsequent memory copy operation.

To exploit this vulnerability, an attacker must control a RADIUS server or intercept network traffic and send spoofed RADIUS replies to the Apache server. Successful exploitation may result in memory corruption and allow for arbitrary code execution.

All versions of mod_auth_radius are considered vulnerable at the moment.

Exploit / POC

Apache mod_auth_radius Malformed RADIUS Server Reply Integer Overflow 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;.

A proof of concept is available:

Solution / Fix

Apache mod_auth_radius Malformed RADIUS Server Reply Integer Overflow Vulnerability

Solution:
Debian Linux has released advisory DSA-659-1 addressing this issue. Please see the referenced advisory for more information.


Debian Linux 3.0 hppa

Debian Linux 3.0 ppc

Debian Linux 3.0 s/390

Debian Linux 3.0 arm

Debian Linux 3.0 alpha

Debian Linux 3.0 mips

Debian Linux 3.0 ia-32

Debian Linux 3.0 mipsel

Debian Linux 3.0 m68k

Debian Linux 3.0 sparc

Debian Linux 3.0 ia-64

References

Apache mod_auth_radius Malformed RADIUS Server Reply Integer Overflow Vulnerability

References:
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