========================================= Brother MFC-9970CDW Firmware 0D Date: Jan. 13, 2013 URL: http://www.cloudscan.me/2013/05/xss-javascript-injection-brother-mfc.html ========================================= Keywords ========================================= XSS, Cross Site Scripting, CWE-79, CAPEC-86, Javascript Injection, Exploit, Zero Day, Brother MFC-9970 CDW CVE-2013-2507, CVE-2013-2670, CVE-2013-2671, CVE-2013-2672, CVE-2013-2673, CVE-2013-2674, CVE-2013-2675, CVE-2013-2676 ========================================= Summary ========================================= A Reflected XSS Bug in the Brother MFC-9970CDW Printer was discovered in January 2013. This document will introduce and discuss the vulnerability and provide Proof-of-Concept (PoC) Zero Day (0D) code examples for Firmware L Version 1.10 Released on July 9, 2012, and prior versions. ========================================= Overview ========================================= Brother Industries, Ltd. is a multinational electronics and electrical equipment company headquartered in Nagoya, Japan. Its products include printers, multifunction printers, sewing machines, large machine tools, label printers, typewriters, fax machines, and other computer-related electronics. Brother distributes its products both under its own name and under OEM agreements with other companies. The MFC-9970cdw Color Laser All-in-One combines print, copy, scan and fax in one powerful device. It produces high-impact color output at impressive print and copy speeds of up to 30ppm and offers flexible connectivity with wireless, Ethernet and USB interfaces. It features a 5" Color Touch Screen display for easy navigation and menu selection. Also, this flagship model offers automatic duplex print/copy/scan/fax and optional high yield toner cartridges to help lower your operating costs making this all-in-one a smart choice for a business or workgroup. ========================================= The Bug ========================================= Reflected Cross Site Scripting, CWE-79 ========================================= Vulnerable Parameters = id , val, kind + Query String Signature = "><script>alert(1)</script> ========================================= Version Identification ========================================= Brother MFC-9970CDW - Version Identification - Firmware L Version 1.10 Brother MFC-9970CDW - Version Identification - Firmware G ========================================= PoC ========================================= PoC URL http://my.vulnerable.printer/admin/admin_main.html?id=websettings"><script> alert(1)</script> ========================================= CVE Information ========================================= CVE-2013-2507 is specific to Firmware G. XSS at: admin/log_to_net.html id parameter fax/copy_settings.html kind parameter CVE-2013-2670 is for the issue that is present in both the Firmware G report and Firmware L. XSS at: admin/admin_main.html name of an arbitrarily assigned URL parameter CVE-2013-2671 is for the XSS issues that are only present in Firmware L. CVEs for Firmware L: Cleartext submission of password CVE-2013-2672 Password field with autocomplete enabled CVE-2013-2673 Cross-domain Referer leakage CVE-2013-2674 Frameable response (Clickjacking) CVE-2013-2675 Private IP addresses disclosed CVE-2013-2676 CVSS 2 Score = 4.5 Timeline Attempt contact via e-mail in January 2013. Call the Toll Free Support Line in March 2013. Callback from Vendor in April 2013. E-mail sent to Vendor in April 2013. VENDOR UNRESPONSIVE Published May 3, 2013 Hoyt LLC Research Public Domain Report http://xss.cx/