bugtraq - TP-LINK WDR4300 - Stored XSS & DoS

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Date: Sun, 21 Sep 2014 23:44:24 GMT
From: ozelisyan@...il.com
To: bugtraq@...urityfocus.com
Subject: TP-LINK WDR4300 - Stored XSS & DoS

Advisory Information
===============

Vendors Contacted: TP-LINK
Vendor Patched: Yes, Firmware 140916
System Affected: N750 Wireless Dual Band Gigabit Router (TL-WDR4300), might affect others.
Versions Affected: 130617 , possibly earlier 
CVE Numbers Assigned: CVE-2014-4727, CVE-2014-4728

Vulnerabilities Description
===================

# Stored XSS -

It is possible inject javascript code via DHCP hostname field, 
If the administrator will visit the dhcp clients page (web panel)
the script will execute.

# DoS (web server) -
Denial of service condition to the device web server, remotely or locally send the
device a "GET" request with an extra "Header" with a long value (A x 3000 times).

Proof of Concept:
============

http://elisyan.com/tplink/wdr4300.html
http://elisyan.com/tplink/wdr4300.py

Report Timeline:
===========

2014-07-04:
Vendor notified about the vulnerabilities with all the relevant technical information.

2013-09-16:
Vendor released a fix.

Credits:
======

The Vulnerabilities was discovered by Oz Elisyan.

References:
========

http://www.tp-link.com/lk/products/details/?model=TL-WDR4300