exploits , vulnerabilities , articles , PHP Strip_Tags() Function Bypass Vulnerability

Title	PHP Strip_Tags() Function Bypass Vulnerability
Published	2004-07-14-12:00AM
Updated	2005-11-02-05:07PM
Class	Input Validation Error
CVE	CAN-2004-0595
Remote	Yes
Local	No
Credit	Stefan Esser <s.esser@ematters.de> disclosed this vulnerability.
Vulnerable	Trustix Secure Linux 2.1 Trustix Secure Linux 2.0 Trustix Secure Linux 1.5 Trustix Secure Enterprise Linux 2.0 Slackware Linux 10.1 Slackware Linux 10.0 Slackware Linux 9.1 Slackware Linux 9.0 Slackware Linux 8.1 Slackware Linux current RedHat Stronghold 4.0 RedHat Fedora Core2 RedHat Fedora Core1 RedHat Enterprise Linux WS 3 RedHat Enterprise Linux ES 3 RedHat Enterprise Linux AS 3 RedHat Desktop 3.0 PHP PHP 5.0 candidate 3 PHP PHP 5.0 candidate 2 PHP PHP 5.0 candidate 1 PHP PHP 4.3.7 PHP PHP 4.3.6 PHP PHP 4.3.5 PHP PHP 4.3.3 S.u.S.E. Linux Personal 9.0 S.u.S.E. Linux Personal 9.0 x86_64 Turbolinux Home Turbolinux Turbolinux 10 F... Turbolinux Turbolinux Desktop 10.0 PHP PHP 4.3.2 PHP PHP 4.3.1 MandrakeSoft Linux Mandrake 9.1 MandrakeSoft Linux Mandrake 9.1 ppc OpenPKG OpenPKG Current S.u.S.E. Linux Personal 8.2 PHP PHP 4.3 PHP PHP 4.2.3 EnGarde Secure Linux 1.0.1 MandrakeSoft Corporate Server 2.1 MandrakeSoft Corporate Server 2.1 x86_64 MandrakeSoft Linux Mandrake 9.0 Turbolinux Turbolinux Server 7.0 Turbolinux Turbolinux Server 8.0 Turbolinux Turbolinux Workstation 7.0 Turbolinux Turbolinux Workstation 8.0 PHP PHP 4.2.2 Gentoo Linux 1.2 Gentoo Linux 1.4 _rc1 OpenPKG OpenPKG 1.1 RedHat Linux 8.0 RedHat Linux 8.0 i386 S.u.S.E. Linux 8.1 PHP PHP 4.2.1 FreeBSD FreeBSD 4.3 FreeBSD FreeBSD 4.4 FreeBSD FreeBSD 4.5 FreeBSD FreeBSD 4.6 Slackware Linux 8.1 PHP PHP 4.2 .0 PHP PHP 4.1.2 Apple Mac OS X 10.0 Apple Mac OS X 10.0.1 Apple Mac OS X 10.0.2 Apple Mac OS X 10.0.3 Apple Mac OS X 10.0.4 Apple Mac OS X 10.1 Apple Mac OS X 10.1 Apple Mac OS X 10.1.1 Apple Mac OS X 10.1.2 Apple Mac OS X 10.1.3 Apple Mac OS X 10.1.4 Apple Mac OS X 10.1.5 Debian Linux 3.0 alpha Debian Linux 3.0 arm Debian Linux 3.0 hppa Debian Linux 3.0 ia32 Debian Linux 3.0 ia64 Debian Linux 3.0 m68k Debian Linux 3.0 mips Debian Linux 3.0 mipsel Debian Linux 3.0 ppc Debian Linux 3.0 s/390 Debian Linux 3.0 sparc MandrakeSoft Linux Mandrake 8.2 MandrakeSoft Linux Mandrake 8.2 ppc MandrakeSoft Multi Network Firewall 2.0 MandrakeSoft Single Network Firewall 7.2 PHP PHP 4.1.1 Conectiva Linux 7.0 PHP PHP 4.1 .0 S.u.S.E. Linux 8.0 S.u.S.E. Linux 8.0 i386 PHP PHP 4.0.7 PHP PHP 4.0.6 Caldera OpenLinux Server 3.1 Caldera OpenLinux Server 3.1.1 Caldera OpenLinux Workstation 3.1 Caldera OpenLinux Workstation 3.1.1 HP Secure OS software for Linux 1.0 IBM AIX 4.3 IBM AIX 4.3.1 IBM AIX 4.3.2 IBM AIX 4.3.3 IBM AIX 5.1 MandrakeSoft Corporate Server 1.0.1 MandrakeSoft Linux Mandrake 7.1 MandrakeSoft Linux Mandrake 7.2 MandrakeSoft Linux Mandrake 8.0 MandrakeSoft Linux Mandrake 8.0 ppc MandrakeSoft Linux Mandrake 8.1 MandrakeSoft Linux Mandrake 8.1 ia64 RedHat Linux 7.0 RedHat Linux 7.0 alpha RedHat Linux 7.0 i386 RedHat Linux 7.1 RedHat Linux 7.1 alpha RedHat Linux 7.1 i386 RedHat Linux 7.1 ia64 RedHat Linux 7.2 RedHat Linux 7.2 i386 RedHat Linux 7.2 ia64 S.u.S.E. Linux 7.2 S.u.S.E. Linux 7.2 i386 S.u.S.E. Linux 7.3 S.u.S.E. Linux 7.3 i386 S.u.S.E. Linux 7.3 ppc S.u.S.E. Linux 7.3 sparc Sun Cobalt RaQ 550 Sun LX50 Trustix Secure Linux 1.5 PHP PHP 4.0.5 PHP PHP 4.0.4 Compaq Compaq Secure Web Server PHP 1.0 Conectiva Linux 6.0 Guardian Digital Engarde Secure Linux 1.0.1 S.u.S.E. Linux 7.0 S.u.S.E. Linux 7.0 alpha S.u.S.E. Linux 7.0 i386 S.u.S.E. Linux 7.0 ppc S.u.S.E. Linux 7.0 sparc S.u.S.E. Linux 7.1 S.u.S.E. Linux 7.1 alpha S.u.S.E. Linux 7.1 ppc S.u.S.E. Linux 7.1 sparc S.u.S.E. Linux 7.1 x86 S.u.S.E. Linux 7.2 PHP PHP 4.0.3 Debian Linux 2.2 Debian Linux 2.2 68k Debian Linux 2.2 alpha Debian Linux 2.2 arm Debian Linux 2.2 IA32 Debian Linux 2.2 powerpc Debian Linux 2.2 sparc Sun Cobalt Control Station 4100CS Sun Cobalt Qube3 Japanese 4000WGJ Sun Cobalt Qube3 Japanese w/ Caching and RAID 4100WGJ Sun Cobalt Qube3 Japanese w/Caching 4010WGJ Sun Cobalt RaQ XTR 3500R Sun Cobalt RaQ XTR Japanese 3500Rja PHP PHP 4.0.2 PHP PHP 4.0.1 Sun Cobalt Qube3 4000WG Sun Cobalt Qube3 w/ Caching and RAID 4100WG Sun Cobalt Qube3 w/Caching 4010WG Sun Cobalt RaQ4 3001R Sun Cobalt RaQ4 Japanese RAID 3100Rja Sun Cobalt RaQ4 RAID 3100R PHP PHP 4.0 0 HP HPUX B.11.23 HP HPUX B.11.22 HP HPUX B.11.11 HP HPUX B.11.11 HP HPUX B.11.00 Avaya S8700 R2.0.1 Avaya S8700 R2.0.0 Avaya S8500 R2.0.1 Avaya S8500 R2.0.0 Avaya S8300 R2.0.1 Avaya S8300 R2.0.0 Avaya Integrated Management Avaya Converged Communications Server 2.0 Apple Mac OS X Server 10.3.7 Apple Mac OS X Server 10.3.6 Apple Mac OS X Server 10.3.5 Apple Mac OS X Server 10.3.4 Apple Mac OS X Server 10.3.3 Apple Mac OS X Server 10.3.2 Apple Mac OS X Server 10.3.1 Apple Mac OS X Server 10.3 Apple Mac OS X Server 10.2.8 Apple Mac OS X Server 10.2.7 Apple Mac OS X Server 10.2.6 Apple Mac OS X Server 10.2.5 Apple Mac OS X Server 10.2.4 Apple Mac OS X Server 10.2.3 Apple Mac OS X Server 10.2.2 Apple Mac OS X Server 10.2.1 Apple Mac OS X Server 10.2 Apple Mac OS X Server 10.1.5 Apple Mac OS X Server 10.1.4 Apple Mac OS X Server 10.1.3 Apple Mac OS X Server 10.1.2 Apple Mac OS X Server 10.1.1 Apple Mac OS X Server 10.1 Apple Mac OS X Server 10.0 Apple Mac OS X 10.3.7 Apple Mac OS X 10.3.6 Apple Mac OS X 10.3.5 Apple Mac OS X 10.3.4 Apple Mac OS X 10.3.3 Apple Mac OS X 10.3.2 Apple Mac OS X 10.3.1 Apple Mac OS X 10.3 Apple Mac OS X 10.2.8 Apple Mac OS X 10.2.7 Apple Mac OS X 10.2.6 Apple Mac OS X 10.2.5 Apple Mac OS X 10.2.4 Apple Mac OS X 10.2.3 Apple Mac OS X 10.2.2 Apple Mac OS X 10.2.1 Apple Mac OS X 10.2 Apple Mac OS X 10.1.5 Apple Mac OS X 10.1.4 Apple Mac OS X 10.1.3 Apple Mac OS X 10.1.2 Apple Mac OS X 10.1.1 Apple Mac OS X 10.1 Apple Mac OS X 10.1 Apple Mac OS X 10.0.4 Apple Mac OS X 10.0.3 Apple Mac OS X 10.0.2 Apple Mac OS X 10.0.1 Apple Mac OS X 10.0 3 Apple Mac OS X 10.0
Not Vulnerable	Apple Mac OS X Server 10.3.8 Apple Mac OS X 10.3.8
Code	No exploit is required, but an example was provided. If a web application uses strip_tags() similar to: $example = strip_tags($_REQUEST['user_input'], "<b><i><s>"); Then possible tags that may lead to exploitation might be: <script> or <script>
TXT

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