Vulmon
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Brother MFC-9970CDW Firmware 0D
Date: Jan. 13, 2013
URL:
http://www.cloudscan.me/2013/05/xss-javascript-injection-brother-mfc.html
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Keywords
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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
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Summary
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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.
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Overview
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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.
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The Bug
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Reflected Cross Site Scripting, CWE-79
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Vulnerable Parameters = id , val, kind + Query String
Signature = "><script>alert(1)</script>
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Version Identification
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Brother MFC-9970CDW - Version Identification - Firmware “L” Version
1.10
Brother MFC-9970CDW - Version Identification - Firmware “G”
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PoC
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PoC URL
http://my.vulnerable.printer/admin/admin_main.html?id=websettings"><script>
alert(1)</script>
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CVE Information
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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/
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END
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