Apache Mod_Auth_Shadow Authentication Bypass Vulnerability

BID:15224

Info

Apache Mod_Auth_Shadow Authentication Bypass Vulnerability

Bugtraq ID: 15224
Class: Design Error
CVE: CVE-2005-2963
Remote: Yes
Local: No
Published: Oct 27 2005 12:00AM
Updated: Jul 12 2009 05:56PM
Credit: David Herselman is credited with the discovery of this vulnerability.
Vulnerable: mod_auth_shadow mod_auth_shadow 2.0
mod_auth_shadow mod_auth_shadow 1.4
mod_auth_shadow mod_auth_shadow 1.3
mod_auth_shadow mod_auth_shadow 1.2
mod_auth_shadow mod_auth_shadow 1.1
mod_auth_shadow mod_auth_shadow 1.0
Mandriva Linux Mandrake 2006.0 x86_64
Mandriva Linux Mandrake 2006.0
Mandriva Linux Mandrake 10.2 x86_64
Mandriva Linux Mandrake 10.2
Mandriva Linux Mandrake 10.1 x86_64
Mandriva Linux Mandrake 10.1
Debian Linux 3.1 sparc
Debian Linux 3.1 s/390
Debian Linux 3.1 ppc
Debian Linux 3.1 mipsel
Debian Linux 3.1 mips
Debian Linux 3.1 m68k
Debian Linux 3.1 ia-64
Debian Linux 3.1 ia-32
Debian Linux 3.1 hppa
Debian Linux 3.1 arm
Debian Linux 3.1 amd64
Debian Linux 3.1 alpha
Debian Linux 3.1
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: mod_auth_shadow mod_auth_shadow 2.1
mod_auth_shadow mod_auth_shadow 1.5

Discussion

Apache Mod_Auth_Shadow Authentication Bypass Vulnerability

mod_auth_shadow is prone to a vulnerability that may bypass expected authentication routines.

An attacker can exploit this vulnerability to bypass security restrictions and gain access to possibly sensitive or privileged information. Information obtained may be used in further attacks against the underlying system; other attacks are also possible.

Exploit / POC

Apache Mod_Auth_Shadow Authentication Bypass Vulnerability

No exploit is required.

Solution / Fix

Apache Mod_Auth_Shadow Authentication Bypass Vulnerability

Solution:
Debian Linux has released security advisory DSA-844-1 addressing this issue. Please see the referenced advisory for further information.

Mandriva Linux has released security advisory MDKSA-2005:200 addressing this issue. Please see the referenced advisory for further information.

The vendor has address this issue in mod_auth_shadow version 1.5 and 2.1:


mod_auth_shadow mod_auth_shadow 1.0

mod_auth_shadow mod_auth_shadow 1.1

mod_auth_shadow mod_auth_shadow 1.2

mod_auth_shadow mod_auth_shadow 1.3

mod_auth_shadow mod_auth_shadow 1.4

mod_auth_shadow mod_auth_shadow 2.0

References

Apache Mod_Auth_Shadow Authentication Bypass Vulnerability

References:

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