Cross-Site Scriting on Portwise SSL VPN v4.6

2010-02-22T00:00:00
ID SECURITYVULNS:DOC:23264
Type securityvulns
Reporter Securityvulns
Modified 2010-02-22T00:00:00

Description

PR09-04: Cross-Site Scriting on Portwise SSL VPN v4.6

Vulnerability found: 25th March 2009

Vendor informed: 28th April 2009

Vulnerability fixed:

Severity: Medium

Description:

The Portwise portal login page is vulnerable to XSS. Portwise is a SSL-VPN portal.

Note: Other version might be affected as well

The following demonstrate XSS:

1) Login page XSS

https://example.com/wa/auth?&authmech=Assess&reloadFrame=%22;%3Cscript%3Eblah%3C/script%3E%3Cscript%3Ealert(document.cookie)%3C/script%3E

Consequences:

An attacker may be able to cause execution of malicious scripting code in the browser of a user who clicks on a link to a Portwise Portal-based site. Such

code would run within the security context of the target domain. This type of attack can result in non-persistent defacement of the target site, or the

redirection of confidential information (i.e.: session IDs) to unauthorised third parties.

Fix:

Ensure all input parameters (especially "reloadFrame") are filtered sufficiently before beign echoed back to the client.

References:

http://www.procheckup.com/Vulnerabilities.php

Credits: George Christopoulos and Jan Fry of ProCheckUp Ltd (www.procheckup.com)

Legal:

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