SB2012081406 - Cross-site scripting in smarty.php.net Smarty

Description

This security bulletin contains information about 1 security vulnerability.

1) Cross-site scripting (CVE-ID: CVE-2012-4277)

Vulnerability allows a remote attacker to perform XSS attacks.

The vulnerability is caused by an input validation error in the smarty_function_html_options_optoutput function in distribution/libs/plugins/function.html_options.php in Smarty before 3.1.8. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in victim's browser in security context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Remediation

Install update from vendor's website.

References

• http://code.google.com/p/smarty-php/issues/detail?id=98&can=1
• http://code.google.com/p/smarty-php/source/detail?r=4612
• http://secunia.com/advisories/49164
• http://smarty-php.googlecode.com/svn/trunk/distribution/change_log.txt
• http://www.securitytracker.com/id?1027061