BID:37142

Ruby on Rails 'strip_tags()' Non-Printable Character Cross Site Scripting Vulnerability

Info

Ruby on Rails 'strip_tags()' Non-Printable Character Cross Site Scripting Vulnerability

Bugtraq ID:	37142
Class:	Input Validation Error
CVE:	CVE-2009-4214
Remote:	Yes
Local:	No
Published:	Nov 27 2009 12:00AM
Updated:	Apr 13 2015 09:36PM
Credit:	Gabe da Silveira
Vulnerable:	SuSE SUSE Linux Enterprise 11 SuSE SUSE Linux Enterprise 10 SP3 SuSE SUSE Linux Enterprise 10 SP2 S.u.S.E. openSUSE 11.2 Ruby on Rails Ruby on Rails 2.3.4 Ruby on Rails Ruby on Rails 2.3.3 Ruby on Rails Ruby on Rails 2.3.2 Ruby on Rails Ruby on Rails 2.2.3 Ruby on Rails Ruby on Rails 2.2.2 Ruby on Rails Ruby on Rails 2.1.1 Ruby on Rails Ruby on Rails 2.1 Ruby on Rails Ruby on Rails 2.0.5 Ruby on Rails Ruby on Rails 2.0.4 Ruby on Rails Ruby on Rails 2.0 Ruby on Rails Ruby on Rails 1.2.6 Ruby on Rails Ruby on Rails 1.2.5 Ruby on Rails Ruby on Rails 1.2.3 Ruby on Rails Ruby on Rails 1.1.6 Ruby on Rails Ruby on Rails 1.1.5 Ruby on Rails Ruby on Rails 1.1.4 Ruby on Rails Ruby on Rails 1.1.3 Ruby on Rails Ruby on Rails 1.1.2 Ruby on Rails Ruby on Rails 1.1.1 Ruby on Rails Ruby on Rails 1.1 Ruby on Rails Ruby on Rails 1.0 Gentoo Linux 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 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 Apple Mac OS X 10.6.2 Apple Mac OS X 10.6.1 Apple Mac OS X 10.5.8 Apple Mac OS X 10.6

Not Vulnerable:	Ruby on Rails Ruby on Rails 2.3.5

Discussion

Ruby on Rails 'strip_tags()' Non-Printable Character Cross Site Scripting Vulnerability

Ruby on Rails is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input.

An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This may let the attacker steal cookie-based authentication credentials and launch other attacks.

NOTE: In some configurations, attackers may exploit this issue to carry out HTML-injection attacks.

Versions prior to Ruby on Rails 2.3.5 are vulnerable.

Exploit / POC

Ruby on Rails 'strip_tags()' Non-Printable Character Cross Site Scripting Vulnerability

Attackers can exploit this issue by enticing an unsuspecting victim into following a malicious URI.

Solution / Fix

Ruby on Rails 'strip_tags()' Non-Printable Character Cross Site Scripting Vulnerability

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

Apple Mac OS X Server 10.6