Brother MFC Administration Reflected Cross-Site Scripting

From: vulns@dionach.com
To: bugtraq@securityfocus.com
Cc:
Subject: Brother MFC Administration Reflected Cross-Site Scripting
Date:


Class   Cross-Site Scripting
Remote Yes
Disclosed       9th October 2014
Published  7th January 2015
Credit     Dave Daly of Dionach (vulns@dionach.com)
Confirmed Vulnerable       Brother MFC-J4410DW with F/W Versions J and K

The printer administration web application on Brother MFC-J4410DW model printers with firmware versions older than version L (released 18th December 2014) are susceptible to a reflected cross-site scripting (XSS) vulnerability due to inadequately sanitised user input. An attacker may leverage this issue to run JavaScript in the context of a victim's browser.

F/W Versions J and K have been confirmed as vulnerable. Other versions may also be vulnerable.

The vulnerability affects all pages which accept the "url" querystring parameter. The following proof-of-concept example demonstrates this, using the "status" web page.

http://[printer]/general/status.html?url="/><script>alert("XSS!")</script><input type="hidden" value="

The vendor was notified of this issue in October 2014, and has reported that the vulnerability is addressed in the latest firmware version.





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