libcrypt 'crypt()' Password Encryption Weakness

BID:53729

Info

libcrypt 'crypt()' Password Encryption Weakness

Bugtraq ID: 53729
Class: Design Error
CVE: CVE-2012-2143
Remote: Yes
Local: Yes
Published: May 30 2012 12:00AM
Updated: Apr 13 2015 09:31PM
Credit: Rubin Xu, Joseph Bonneau, Donting Yu
Vulnerable: Ubuntu Ubuntu Linux 8.04 LTS sparc
Ubuntu Ubuntu Linux 8.04 LTS powerpc
Ubuntu Ubuntu Linux 8.04 LTS lpia
Ubuntu Ubuntu Linux 8.04 LTS i386
Ubuntu Ubuntu Linux 8.04 LTS amd64
Ubuntu Ubuntu Linux 12.04 LTS i386
Ubuntu Ubuntu Linux 12.04 LTS amd64
Ubuntu Ubuntu Linux 11.10 i386
Ubuntu Ubuntu Linux 11.10 amd64
Ubuntu Ubuntu Linux 11.04 powerpc
Ubuntu Ubuntu Linux 11.04 i386
Ubuntu Ubuntu Linux 11.04 ARM
Ubuntu Ubuntu Linux 11.04 amd64
Ubuntu Ubuntu Linux 10.04 sparc
Ubuntu Ubuntu Linux 10.04 powerpc
Ubuntu Ubuntu Linux 10.04 i386
Ubuntu Ubuntu Linux 10.04 ARM
Ubuntu Ubuntu Linux 10.04 amd64
Turbolinux Client 2008
Turbolinux Appliance Server 3.0 x64
Turbolinux Appliance Server 3.0
Turbolinux 11 Server x64
Turbolinux 11 Server 0
SuSE SUSE Linux Enterprise Server for VMware 11 SP2
+ Linux kernel 2.6.5
SuSE SUSE Linux Enterprise Server 11 SP2
+ Linux kernel 2.6.5
SuSE SUSE Linux Enterprise SDK 11 SP2
Redhat Enterprise Linux Workstation Optional 6
Redhat Enterprise Linux Workstation 6
Redhat Enterprise Linux Server Optional 6
Redhat Enterprise Linux Server 6
Redhat Enterprise Linux HPC Node Optional 6
Redhat Enterprise Linux HPC Node 6
Redhat Enterprise Linux Desktop Workstation 5 client
Redhat Enterprise Linux Desktop Optional 6
Redhat Enterprise Linux Desktop 6
Redhat Enterprise Linux Desktop 5 client
Redhat Enterprise Linux 5 Server
PostgreSQL PostgreSQL 9.1.3
PostgreSQL PostgreSQL 9.0.7
PostgreSQL PostgreSQL 9.0.3
PostgreSQL PostgreSQL 9.0.1
PostgreSQL PostgreSQL 9.0
PostgreSQL PostgreSQL 9.1
PostgreSQL PostgreSQL 9.0.1
PostgreSQL PostgreSQL 9.0
PHP PHP 5.4.3
PHP PHP 5.4.2
PHP PHP 5.4.1
PHP PHP 5.3.13
PHP PHP 5.3.12
PHP PHP 5.3.9
PHP PHP 5.3.8
PHP PHP 5.3.7
PHP PHP 5.3.6
PHP PHP 5.3.5
PHP PHP 5.3.2
PHP PHP 5.3.1
PHP PHP 5.3
PHP PHP 5.2.17
PHP PHP 5.2.15
PHP PHP 5.2.13
PHP PHP 5.2.12
PHP PHP 5.2.11
PHP PHP 5.2.10
PHP PHP 5.2.9 -2
PHP PHP 5.2.9
PHP PHP 5.2.8
PHP PHP 5.2.7
PHP PHP 5.2.6
PHP PHP 5.2.5
PHP PHP 5.2.4
PHP PHP 5.2.3
PHP PHP 5.2.2
PHP PHP 5.2.1
+ Ubuntu Ubuntu Linux 7.04 sparc
 + Ubuntu Ubuntu Linux 7.04 powerpc
 + Ubuntu Ubuntu Linux 7.04 i386
 + Ubuntu Ubuntu Linux 7.04 amd64
 PHP PHP 5.1.6
+ Ubuntu Ubuntu Linux 6.10 sparc
 + Ubuntu Ubuntu Linux 6.10 powerpc
 + Ubuntu Ubuntu Linux 6.10 i386
 + Ubuntu Ubuntu Linux 6.10 amd64
 PHP PHP 5.1.5
PHP PHP 5.1.4
PHP PHP 5.1.3 -RC1
PHP PHP 5.1.3
PHP PHP 5.1.2
PHP PHP 5.1.1
PHP PHP 5.1
PHP PHP 5.0.5
PHP PHP 5.0.4
PHP PHP 5.0.3
PHP PHP 5.0.2
PHP PHP 5.0.1
PHP PHP 5.0 candidate 3
PHP PHP 5.0 candidate 2
PHP PHP 5.0 candidate 1
PHP PHP 5.0 .0
PHP PHP 6.0 dev
PHP PHP 6.0
PHP PHP 5.5.0-DEV
PHP PHP 5.4SVN-2012-02-03
PHP PHP 5.4.1RC1-DEV
PHP PHP 5.4.0beta2
PHP PHP 5.3.5
PHP PHP 5.3.4 RC1
PHP PHP 5.3.4
PHP PHP 5.3.3
PHP PHP 5.3.11
PHP PHP 5.3.10
PHP PHP 5.2.14
PHP PHP 5.2
Oracle Enterprise Linux 6.2
Oracle Enterprise Linux 6
Oracle Enterprise Linux 5
Mandriva Linux Mandrake 2011 x86_64
Mandriva Linux Mandrake 2011
Mandriva Linux Mandrake 2010.1 x86_64
Mandriva Linux Mandrake 2010.1
MandrakeSoft Enterprise Server 5 x86_64
MandrakeSoft Enterprise Server 5
libcrypt libcrypt 0
IBM Tivoli Netcool Performance Manager (TNPM Wireless) 1.2.1
Gentoo Linux
FreeBSD FreeBSD 9.0-STABLE
FreeBSD FreeBSD 9.0-RELEASE
FreeBSD FreeBSD 9.0-RC3
FreeBSD FreeBSD 9.0-RC1
FreeBSD FreeBSD 8.3-STABLE
FreeBSD FreeBSD 8.2-STABLE
FreeBSD FreeBSD 8.2-STABLE
FreeBSD FreeBSD 8.2-RELEASE-p2
FreeBSD FreeBSD 8.2-RELEASE-p1
FreeBSD FreeBSD 8.2 - RELEASE -p3
FreeBSD FreeBSD 8.2
FreeBSD FreeBSD 8.1-STABLE
FreeBSD FreeBSD 8.1-RELENG
FreeBSD FreeBSD 8.1-RELEASE-p5
FreeBSD FreeBSD 8.1-RELEASE-p4
FreeBSD FreeBSD 8.1-RELEASE-p1
FreeBSD FreeBSD 8.1-RELEASE
FreeBSD FreeBSD 8.1-PRERELEASE
FreeBSD FreeBSD 8.1
FreeBSD FreeBSD 7.4-STABLE
FreeBSD FreeBSD 7.4-RELEASE-p2
FreeBSD FreeBSD 7.4 -RELEASE-p3
FreeBSD FreeBSD 7.4
Debian Linux 6.0 sparc
Debian Linux 6.0 s/390
Debian Linux 6.0 powerpc
Debian Linux 6.0 mips
Debian Linux 6.0 ia-64
Debian Linux 6.0 ia-32
Debian Linux 6.0 arm
Debian Linux 6.0 amd64
Check Point Software Check Point IPSO 6.2
Avaya Voice Portal 5.1 SP2
Avaya Voice Portal 5.1 SP1
Avaya Voice Portal 5.1
Avaya Voice Portal 5.0 SP2
Avaya Voice Portal 5.0 SP1
Avaya Voice Portal 5.0
Avaya Meeting Exchange 5.2
Avaya Meeting Exchange 5.1
Avaya Meeting Exchange 5.0
Avaya Conferencing Standard Edition 6.0
Avaya Aura System Manager 6.2
Avaya Aura System Manager 6.1.5
Avaya Aura System Manager 6.1.3
Avaya Aura System Manager 6.1.2
Avaya Aura System Manager 6.1.1
Avaya Aura System Manager 6.1 SP2
Avaya Aura System Manager 6.1 Sp1
Avaya Aura System Manager 6.1
Avaya Aura System Manager 6.0 SP1
Avaya Aura System Manager 6.0
Avaya Aura System Manager 5.2
Avaya Aura Session Manager 6.1.5
Avaya Aura Session Manager 6.1.3
Avaya Aura Session Manager 6.1.2
Avaya Aura Session Manager 6.1.1
Avaya Aura Session Manager 6.2
Avaya Aura Session Manager 6.1
Avaya Aura Session Manager 6.0
Avaya Aura Session Manager 5.2.1
Avaya Aura Session Manager 5.2
Avaya Aura Session Manager 1.1
Avaya Aura Presence Services 6.1.2
Avaya Aura Presence Services 6.1.1
Avaya Aura Presence Services 6.1
Avaya Aura Presence Services 6.0
Avaya Aura Experience Portal 6.0.1
Avaya Aura Communication Manager Utility Services 6.2
Avaya Aura Communication Manager Utility Services 6.1
+ Avaya Communication Manager Server DEFINITY Server SI/CS
+ Avaya Communication Manager Server S8100
+ Avaya Communication Manager Server S8300
+ Avaya Communication Manager Server S8500
+ Avaya Communication Manager Server S8700
Avaya Aura Application Enablement Services 5.2.1
Avaya Aura Application Enablement Services 6.1.1
Avaya Aura Application Enablement Services 6.1
Avaya Aura Application Enablement Services 5.2.3
Avaya Aura Application Enablement Services 5.2.2
Avaya Aura Application Enablement Services 5.2
Apple Mac OS X Server 10.7.5
Apple Mac OS X Server 10.7.3
Apple Mac OS X Server 10.7.2
Apple Mac OS X Server 10.7.1
Apple Mac OS X Server 10.7
Apple Mac OS X Server 10.6.8
Apple Mac OS X 10.8.1
Apple Mac OS X 10.8
Apple Mac OS X 10.7.4
Apple Mac OS X 10.7.3
Apple Mac OS X 10.7.2
Apple Mac OS X 10.7.1
Apple Mac OS X 10.7
Apple Mac OS X 10.6.8
Not Vulnerable: PHP PHP 5.4.4
PHP PHP 5.3.14
Avaya Aura Session Manager 6.3
Apple Mac OS X 10.8.2
Apple Mac OS X 10.7.5

Discussion

libcrypt 'crypt()' Password Encryption Weakness

libcrypt is prone to a password-encryption weakness.



An attacker can leverage this issue to bypass authentication mechanism of application using the affected 'crypt()' function to encrypt its users' passwords. Successful exploits can aid in launching further attacks.

Exploit / POC

libcrypt 'crypt()' Password Encryption Weakness

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

Solution / Fix

libcrypt 'crypt()' Password Encryption Weakness

Solution:
Updates are available. Please see the references for more information.


Apple Mac OS X 10.6.8

Apple Mac OS X 10.7.3

MandrakeSoft Enterprise Server 5

Apple Mac OS X 10.8.1

References

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