Apache Tomcat Form Authentication Existing/Non-Existing Username Enumeration Weakness

BID:35196

Info

Apache Tomcat Form Authentication Existing/Non-Existing Username Enumeration Weakness

Bugtraq ID: 35196
Class: Design Error
CVE: CVE-2009-0580
Remote: Yes
Local: No
Published: Jun 03 2009 12:00AM
Updated: Apr 13 2015 09:48PM
Credit: D. Matscheko and T. Hackner of SEC Consult
Vulnerable: VMWare VirtualCenter 2.0.2
VMWare VirtualCenter 2.5 Update 5
VMWare VirtualCenter 2.5 Update 2
VMWare VirtualCenter 2.5 Update 1
VMWare VirtualCenter 2.5
VMWare VirtualCenter 2.0.2 Update 5
VMWare VirtualCenter 2.0.2 Update 4
VMWare VirtualCenter 2.0.2 Update 3
VMWare VirtualCenter 2.0.2 Update 2
VMWare VirtualCenter 2.0.2 Update 1
VMWare vCenter 4.0
VMWare Server 2.0.2
VMWare Server 2.0.1
VMWare Server 2.0
VMWare ESX Server 3.0.3
VMWare ESX Server 3.0.2
VMWare ESX Server 3.0.1
VMWare ESX Server 3.0
VMWare ESX Server 4.0
VMWare ESX Server 3.5
Ubuntu Ubuntu Linux 9.04 sparc
Ubuntu Ubuntu Linux 9.04 powerpc
Ubuntu Ubuntu Linux 9.04 lpia
Ubuntu Ubuntu Linux 9.04 i386
Ubuntu Ubuntu Linux 9.04 amd64
Ubuntu Ubuntu Linux 8.10 sparc
Ubuntu Ubuntu Linux 8.10 powerpc
Ubuntu Ubuntu Linux 8.10 lpia
Ubuntu Ubuntu Linux 8.10 i386
Ubuntu Ubuntu Linux 8.10 amd64
SuSE SUSE Linux Enterprise Server 11
+ Linux kernel 2.6.5
Sun Solaris 9_x86
Sun Solaris 9_sparc
Sun Solaris 10_x86
Sun Solaris 10_sparc
Sun OpenSolaris build snv_99
Sun OpenSolaris build snv_96
Sun OpenSolaris build snv_95
Sun OpenSolaris build snv_94
Sun OpenSolaris build snv_93
Sun OpenSolaris build snv_92
Sun OpenSolaris build snv_91
Sun OpenSolaris build snv_90
Sun OpenSolaris build snv_89
Sun OpenSolaris build snv_88
Sun OpenSolaris build snv_87
Sun OpenSolaris build snv_86
Sun OpenSolaris build snv_85
Sun OpenSolaris build snv_84
Sun OpenSolaris build snv_83
Sun OpenSolaris build snv_82
Sun OpenSolaris build snv_81
Sun OpenSolaris build snv_80
Sun OpenSolaris build snv_78
Sun OpenSolaris build snv_77
Sun OpenSolaris build snv_76
Sun OpenSolaris build snv_68
Sun OpenSolaris build snv_67
Sun OpenSolaris build snv_64
Sun OpenSolaris build snv_61
Sun OpenSolaris build snv_59
Sun OpenSolaris build snv_58
Sun OpenSolaris build snv_57
Sun OpenSolaris build snv_54
Sun OpenSolaris build snv_50
Sun OpenSolaris build snv_49
Sun OpenSolaris build snv_47
Sun OpenSolaris build snv_45
Sun OpenSolaris build snv_41
Sun OpenSolaris build snv_39
Sun OpenSolaris build snv_36
Sun OpenSolaris build snv_29
Sun OpenSolaris build snv_22
Sun OpenSolaris build snv_19
Sun OpenSolaris build snv_13
Sun OpenSolaris build snv_117
Sun OpenSolaris build snv_116
Sun OpenSolaris build snv_115
Sun OpenSolaris build snv_114
Sun OpenSolaris build snv_113
Sun OpenSolaris build snv_112
Sun OpenSolaris build snv_111a
Sun OpenSolaris build snv_111
Sun OpenSolaris build snv_110
Sun OpenSolaris build snv_109
Sun OpenSolaris build snv_108
Sun OpenSolaris build snv_107
Sun OpenSolaris build snv_106
Sun OpenSolaris build snv_105
Sun OpenSolaris build snv_104
Sun OpenSolaris build snv_103
Sun OpenSolaris build snv_102
Sun OpenSolaris build snv_101a
Sun OpenSolaris build snv_101
Sun OpenSolaris build snv_100
Sun OpenSolaris build snv_02
Sun OpenSolaris build snv_01
S.u.S.E. openSUSE 11.1
S.u.S.E. openSUSE 11.0
Redhat Network Satellite (for RHEL 4 AS) 5.3
Redhat Network Satellite (for RHEL 4 AS) 5.2
Redhat JBoss Enterprise Web Server EL4 0
Redhat JBoss Enterprise Web Server 5.0
Redhat JBoss Enterprise Application Platform 4.3 EL5
Redhat JBoss Enterprise Application Platform 4.3 EL4
Redhat JBoss Enterprise Application Platform 4.3
Redhat JBoss Enterprise Application Platform 4.2 EL5
Redhat JBoss Enterprise Application Platform 4.2 EL4
Redhat JBoss Enterprise Application Platform 4.2
Redhat Enterprise Linux EUS 5.3.z server
Redhat Enterprise Linux Desktop Workstation 5 client
Redhat Enterprise Linux Desktop 5 client
Redhat Enterprise Linux 5 Server
Redhat Developer Suite AS4 3
Redhat Certificate Server 7.3
Redhat Application Server WS4 2
Redhat Application Server ES4 2
Redhat Application Server AS4 2
Mandriva Linux Mandrake 2009.1 x86_64
Mandriva Linux Mandrake 2009.1
Mandriva Linux Mandrake 2009.0 x86_64
Mandriva Linux Mandrake 2009.0
Mandriva Linux Mandrake 2008.0 x86_64
Mandriva Linux Mandrake 2008.0
MandrakeSoft Enterprise Server 5 x86_64
MandrakeSoft Enterprise Server 5
IBM Tivoli Netcool/Webtop 2.1 Fix Pack 9
IBM Tivoli Netcool/Webtop 2.1 Fix Pack 5
IBM Tivoli Netcool/Webtop 2.1 Fix Pack 4
IBM Tivoli Netcool/Webtop 2.1
IBM Rational Quality Manager 2.0
HP Performance Manager 8.21
HP Performance Manager 8.20
HP Performance Manager 8.10
HP OpenVMS Secure Web Server 7.3 -2
HP OpenVMS Secure Web Server 7.3 -1
HP OpenVMS Secure Web Server 7.3
HP OpenVMS Secure Web Server 7.2 -2
HP OpenVMS Secure Web Server 1.2
HP OpenVMS Secure Web Server 1.1 -1
HP OpenVMS Secure Web Server 2.2
HP OpenVMS Secure Web Server 2.1-1
HP HP-UX Web Server Suite 3.22
HP HP-UX Web Server Suite 3.21
HP HP-UX Web Server Suite 3.18
HP HP-UX Web Server Suite 3.17
HP HP-UX Web Server Suite 3.12
HP HP-UX Web Server Suite 3.10
HP HP-UX B.11.31
HP HP-UX B.11.23
HP HP-UX B.11.11
Gentoo Linux
Debian Linux 5.0 sparc
Debian Linux 5.0 s/390
Debian Linux 5.0 powerpc
Debian Linux 5.0 mipsel
Debian Linux 5.0 mips
Debian Linux 5.0 m68k
Debian Linux 5.0 ia-64
Debian Linux 5.0 ia-32
Debian Linux 5.0 hppa
Debian Linux 5.0 armel
Debian Linux 5.0 arm
Debian Linux 5.0 amd64
Debian Linux 5.0 alpha
Debian Linux 5.0
Apple Mac OS X Server 10.6.2
Apple Mac OS X Server 10.6.1
Apple Mac OS X Server 10.5.8
Apple Mac OS X Server 10.6
Apache Tomcat 6.0.18
Apache Tomcat 6.0.16
Apache Tomcat 6.0.15
Apache Tomcat 6.0.14
Apache Tomcat 6.0.13
Apache Tomcat 6.0.12
Apache Tomcat 6.0.11
Apache Tomcat 6.0.10
Apache Tomcat 6.0.9
Apache Tomcat 6.0.8
Apache Tomcat 6.0.7
Apache Tomcat 6.0.6
Apache Tomcat 6.0.5
Apache Tomcat 6.0.4
Apache Tomcat 6.0.3
Apache Tomcat 6.0.2
Apache Tomcat 6.0.1
Apache Tomcat 6.0
Apache Tomcat 5.5.27
Apache Tomcat 5.5.26
Apache Tomcat 5.5.25
Apache Tomcat 5.5.24
Apache Tomcat 5.5.23
Apache Tomcat 5.5.22
Apache Tomcat 5.5.21
Apache Tomcat 5.5.20
Apache Tomcat 5.5.19
Apache Tomcat 5.5.18
Apache Tomcat 5.5.17
Apache Tomcat 5.5.16
Apache Tomcat 5.5.15
Apache Tomcat 5.5.14
Apache Tomcat 5.5.13
Apache Tomcat 5.5.12
Apache Tomcat 5.5.11
Apache Tomcat 5.5.10
Apache Tomcat 5.5.9
Apache Tomcat 5.5.8
Apache Tomcat 5.5.7
Apache Tomcat 5.5.6
Apache Tomcat 5.5.5
Apache Tomcat 5.5.4
Apache Tomcat 5.5.3
Apache Tomcat 5.5.2
Apache Tomcat 5.5.1
Apache Tomcat 5.5
Apache Tomcat 4.1.39
Apache Tomcat 4.1.38
Apache Tomcat 4.1.37
Apache Tomcat 4.1.36
Apache Tomcat 4.1.35
Apache Tomcat 4.1.34
Apache Tomcat 4.1.32
Apache Tomcat 4.1.31
Apache Tomcat 4.1.30
Apache Tomcat 4.1.29
Apache Tomcat 4.1.28
Apache Tomcat 4.1.24
Apache Tomcat 4.1.12
Apache Tomcat 4.1.10
Apache Tomcat 4.1.9 beta
Apache Tomcat 4.1.3 beta
Apache Tomcat 4.1.3
Apache Tomcat 4.1
- BSDI BSD/OS 4.0
- Caldera OpenLinux 2.4
- Debian Linux 2.3
- Debian Linux 2.2
- Debian Linux 2.1
- Digital UNIX 4.0
- FreeBSD FreeBSD 5.0
- FreeBSD FreeBSD 4.5
- Mandriva Linux Mandrake 7.1
- Mandriva Linux Mandrake 7.0
- NetBSD NetBSD 1.4.2 x86
 - NetBSD NetBSD 1.4.1 x86
 - Redhat Linux 6.2 i386
 - Redhat Linux 6.1 i386
 - SGI IRIX 6.5
- SGI IRIX 6.4
- SGI IRIX 3.3
- Sun Solaris 8_sparc
 - Sun Solaris 7.0
Not Vulnerable: VMWare VirtualCenter 2.5 Update 6
VMWare vCenter 4.0 Update 1
Sun OpenSolaris build snv_118
IBM Tivoli Netcool/Webtop 2.1 Fix Pack 10
IBM Rational Quality Manager 2.0.1
HP HP-UX Web Server Suite 3.13
Apple Mac OS X Server 10.6.3
Apache Tomcat 6.0.20
Apache Tomcat 5.5.28
Apache Tomcat 4.1.40

Discussion

Apache Tomcat Form Authentication Existing/Non-Existing Username Enumeration Weakness

Apache Tomcat is prone to a username-enumeration weakness because it displays different responses to login attempts, depending on whether or not the username exists.

Attackers may exploit this weakness to discern valid usernames. This may aid them in brute-force password cracking or other attacks.

The following are vulnerable:

Tomcat 4.1.x (prior to 4.1.40)
Tomcat 5.5x (prior to 5.5.28)
Tomcat 6.0.x (prior to 6.0.20)

Exploit / POC

Apache Tomcat Form Authentication Existing/Non-Existing Username Enumeration Weakness

Attackers can use readily available tools to exploit this issue.

The following example POST data is available:

POST /j_security_check HTTP/1.1
Host: www.example.com

j_username=tomcat&j_password=%

Solution / Fix

Apache Tomcat Form Authentication Existing/Non-Existing Username Enumeration Weakness

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


Ubuntu Ubuntu Linux 8.10 powerpc

Mandriva Linux Mandrake 2008.0

Ubuntu Ubuntu Linux 9.04 sparc

Ubuntu Ubuntu Linux 9.04 lpia

Ubuntu Ubuntu Linux 8.10 sparc

Mandriva Linux Mandrake 2009.0 x86_64

VMWare ESX Server 4.0

Ubuntu Ubuntu Linux 9.04 amd64

Mandriva Linux Mandrake 2009.1 x86_64

Ubuntu Ubuntu Linux 8.10 i386

References

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