Squid Proxy squid_ldap_auth Authentication Bypass Vulnerability

BID:12431

Info

Squid Proxy squid_ldap_auth Authentication Bypass Vulnerability

Bugtraq ID: 12431
Class: Input Validation Error
CVE: CVE-2005-0173
Remote: Yes
Local: No
Published: Feb 02 2005 12:00AM
Updated: Feb 22 2007 01:06AM
Credit: The individual or individuals responsible for the discovery of this issue are currently unknown; the vendor disclosed this issue.
Vulnerable: SuSE Linux 8.1
SuSE Linux 8.0 i386
SuSE Linux 8.0
Squid Web Proxy Cache 2.5 .STABLE7
+ Gentoo Linux
+ Redhat Fedora Core3
 + Redhat Fedora Core2
 Squid Web Proxy Cache 2.5 .STABLE6
+ Mandriva Linux Mandrake 10.1 x86_64
 + S.u.S.E. Linux Personal 9.2 x86_64
 + S.u.S.E. Linux Personal 9.2
+ Turbolinux Appliance Server 1.0 Workgroup Edition
 + Turbolinux Appliance Server 1.0 Hosting Edition
 + Turbolinux Appliance Server Hosting Edition 1.0
+ Turbolinux Appliance Server Workgroup Edition 1.0
+ Turbolinux Turbolinux Server 10.0
+ Turbolinux Turbolinux Server 8.0
+ Turbolinux Turbolinux Server 7.0
+ Turbolinux Turbolinux Workstation 8.0
+ Turbolinux Turbolinux Workstation 7.0
Squid Web Proxy Cache 2.5 .STABLE5
+ S.u.S.E. Linux Personal 9.1 x86_64
 + S.u.S.E. Linux Personal 9.1
+ Trustix Secure Linux 2.1
+ Trustix Secure Linux 2.0
+ Ubuntu Ubuntu Linux 4.1 ppc
 + Ubuntu Ubuntu Linux 4.1 ia64
 + Ubuntu Ubuntu Linux 4.1 ia32
 Squid Web Proxy Cache 2.5 .STABLE4
+ MandrakeSoft Corporate Server 3.0
+ Mandriva Linux Mandrake 10.0 AMD64
 + Mandriva Linux Mandrake 10.0
+ OpenPKG OpenPKG 2.0
+ OpenPKG OpenPKG Current
 Squid Web Proxy Cache 2.5 .STABLE3
+ Mandriva Linux Mandrake 9.2 amd64
 + Mandriva Linux Mandrake 9.2
+ OpenPKG OpenPKG 1.3
+ Redhat Desktop 3.0
+ Redhat Enterprise Linux AS 3
 + Redhat Enterprise Linux ES 3
 + Redhat Enterprise Linux WS 3
 + Redhat Fedora Core1
 + S.u.S.E. Linux Personal 9.0 x86_64
 + S.u.S.E. Linux Personal 9.0
Squid Web Proxy Cache 2.5 .STABLE1
+ Mandriva Linux Mandrake 9.1 ppc
 + Mandriva Linux Mandrake 9.1
+ S.u.S.E. Linux Personal 8.2
Squid Web Proxy Cache 2.4 .STABLE7
+ MandrakeSoft Corporate Server 2.1 x86_64
 + MandrakeSoft Corporate Server 2.1
+ MandrakeSoft Multi Network Firewall 2.0
+ Redhat Enterprise Linux AS 2.1 IA64
 + Redhat Enterprise Linux AS 2.1
 + Redhat Enterprise Linux ES 2.1 IA64
 + Redhat Enterprise Linux ES 2.1
 + Redhat Enterprise Linux WS 2.1 IA64
 + Redhat Enterprise Linux WS 2.1
 + Redhat Linux Advanced Work Station 2.1
Squid Web Proxy Cache 2.4 .STABLE6
+ 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
Squid Web Proxy Cache 2.4 .STABLE2
Squid Web Proxy Cache 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
Squid Web Proxy Cache 2.3 .STABLE5
Squid Web Proxy Cache 2.3 .STABLE4
Squid Web Proxy Cache 2.1 PATCH2
Squid Web Proxy Cache 2.0 PATCH2
SGI ProPack 3.0
S.u.S.E. Linux Personal 9.2
S.u.S.E. Linux Personal 9.1
S.u.S.E. Linux Personal 9.0 x86_64
S.u.S.E. Linux Personal 9.0
S.u.S.E. Linux Personal 8.2
Redhat Linux 9.0 i386
Redhat Linux 7.3 i386
Redhat Fedora Core2
Redhat Fedora Core1
Astaro Security Linux 4.0 17
Astaro Security Linux 4.0 16
Astaro Security Linux 4.0 08
Astaro Security Linux 3.217
Astaro Security Linux 3.2 16
Astaro Security Linux 3.2 15
Astaro Security Linux 3.2 12
Astaro Security Linux 3.2 11
Astaro Security Linux 3.2 10
Astaro Security Linux 3.2 00
Astaro Security Linux 2.0 30
Astaro Security Linux 2.0 27
Astaro Security Linux 2.0 26
Astaro Security Linux 2.0 25
Astaro Security Linux 2.0 24
Astaro Security Linux 2.0 23
Astaro Security Linux 2.0 16
Not Vulnerable:

Discussion

Squid Proxy squid_ldap_auth Authentication Bypass Vulnerability

Squid Proxy is reported prone to an authentication-bypass vulnerability. This issue seems to result from insufficient input validation.

The 'squid_ldap_auth' module is reported affected by this issue. A remote attacker may gain unauthorized access or gain elevated privileges from bypassing access controls.

Squid versions 2.5 and earlier are reported prone to this vulnerability.

Exploit / POC

Squid Proxy squid_ldap_auth Authentication Bypass Vulnerability

An exploit is not required to carry out this attack.

Solution / Fix

Squid Proxy squid_ldap_auth Authentication Bypass Vulnerability

Solution:
Please see the referenced vendor advisories for more information and fixes.


Squid Web Proxy Cache 2.4 .STABLE7

Squid Web Proxy Cache 2.4 .STABLE6

Squid Web Proxy Cache 2.5 .STABLE4

Squid Web Proxy Cache 2.5 .STABLE7

Squid Web Proxy Cache 2.5 .STABLE6

Squid Web Proxy Cache 2.5 .STABLE1

Squid Web Proxy Cache 2.5 .STABLE3

Squid Web Proxy Cache 2.5 .STABLE5

SGI ProPack 3.0

References

Squid Proxy squid_ldap_auth Authentication Bypass Vulnerability

References:
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