{"id":"https://openalex.org/W3115014917","doi":"https://doi.org/10.1155/2020/8853625","title":"A Diagnosis and Hardening Platform for an Asterisk VoIP PBX","display_name":"A Diagnosis and Hardening Platform for an Asterisk VoIP PBX","publication_year":2020,"publication_date":"2020-12-29","ids":{"openalex":"https://openalex.org/W3115014917","doi":"https://doi.org/10.1155/2020/8853625","mag":"3115014917"},"language":"en","primary_location":{"id":"doi:10.1155/2020/8853625","is_oa":true,"landing_page_url":"http://doi.org/10.1155/2020/8853625","pdf_url":"https://downloads.hindawi.com/journals/scn/2020/8853625.pdf","source":{"id":"https://openalex.org/S120683614","display_name":"Security and Communication Networks","issn_l":"1939-0114","issn":["1939-0114","1939-0122"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319869","host_organization_name":"Hindawi Publishing Corporation","host_organization_lineage":["https://openalex.org/P4310319869"],"host_organization_lineage_names":["Hindawi Publishing Corporation"],"type":"journal"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Security and Communication Networks","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://downloads.hindawi.com/journals/scn/2020/8853625.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5069099983","display_name":"Pelayo Nu\u00f1o","orcid":"https://orcid.org/0000-0002-8599-3077"},"institutions":[{"id":"https://openalex.org/I165339363","display_name":"Universidad de Oviedo","ror":"https://ror.org/006gksa02","country_code":"ES","type":"education","lineage":["https://openalex.org/I165339363"]}],"countries":["ES"],"is_corresponding":true,"raw_author_name":"Pelayo Nu\u00f1o","raw_affiliation_strings":["Department of Computing, University of Oviedo, Campus de Viesques, Gij\u00f3n, 33204, Asturias, Spain"],"affiliations":[{"raw_affiliation_string":"Department of Computing, University of Oviedo, Campus de Viesques, Gij\u00f3n, 33204, Asturias, Spain","institution_ids":["https://openalex.org/I165339363"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103093073","display_name":"Carla Su\u00e1rez","orcid":"https://orcid.org/0000-0002-1097-2554"},"institutions":[{"id":"https://openalex.org/I165339363","display_name":"Universidad de Oviedo","ror":"https://ror.org/006gksa02","country_code":"ES","type":"education","lineage":["https://openalex.org/I165339363"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Carla Su\u00e1rez","raw_affiliation_strings":["Department of Computing, University of Oviedo, Campus de Viesques, Gij\u00f3n, 33204, Asturias, Spain"],"affiliations":[{"raw_affiliation_string":"Department of Computing, University of Oviedo, Campus de Viesques, Gij\u00f3n, 33204, Asturias, Spain","institution_ids":["https://openalex.org/I165339363"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102786405","display_name":"Eva Su\u00e1rez","orcid":"https://orcid.org/0000-0003-4773-6640"},"institutions":[{"id":"https://openalex.org/I165339363","display_name":"Universidad de Oviedo","ror":"https://ror.org/006gksa02","country_code":"ES","type":"education","lineage":["https://openalex.org/I165339363"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Eva Su\u00e1rez","raw_affiliation_strings":["Department of Computing, University of Oviedo, Campus de Viesques, Gij\u00f3n, 33204, Asturias, Spain"],"affiliations":[{"raw_affiliation_string":"Department of Computing, University of Oviedo, Campus de Viesques, Gij\u00f3n, 33204, Asturias, Spain","institution_ids":["https://openalex.org/I165339363"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5057851891","display_name":"Francisco G. Bulnes","orcid":"https://orcid.org/0000-0002-7059-5703"},"institutions":[{"id":"https://openalex.org/I165339363","display_name":"Universidad de Oviedo","ror":"https://ror.org/006gksa02","country_code":"ES","type":"education","lineage":["https://openalex.org/I165339363"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Francisco G. Bulnes","raw_affiliation_strings":["Department of Computing, University of Oviedo, Campus de Viesques, Gij\u00f3n, 33204, Asturias, Spain"],"affiliations":[{"raw_affiliation_string":"Department of Computing, University of Oviedo, Campus de Viesques, Gij\u00f3n, 33204, Asturias, Spain","institution_ids":["https://openalex.org/I165339363"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027444378","display_name":"Francisco J. delaCalle","orcid":"https://orcid.org/0000-0002-5546-2005"},"institutions":[{"id":"https://openalex.org/I165339363","display_name":"Universidad de Oviedo","ror":"https://ror.org/006gksa02","country_code":"ES","type":"education","lineage":["https://openalex.org/I165339363"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Francisco J. delaCalle","raw_affiliation_strings":["Department of Computing, University of Oviedo, Campus de Viesques, Gij\u00f3n, 33204, Asturias, Spain"],"affiliations":[{"raw_affiliation_string":"Department of Computing, University of Oviedo, Campus de Viesques, Gij\u00f3n, 33204, Asturias, Spain","institution_ids":["https://openalex.org/I165339363"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5009970926","display_name":"Juan C. Granda","orcid":"https://orcid.org/0000-0001-8214-6019"},"institutions":[{"id":"https://openalex.org/I165339363","display_name":"Universidad de Oviedo","ror":"https://ror.org/006gksa02","country_code":"ES","type":"education","lineage":["https://openalex.org/I165339363"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Juan Carlos Granda","raw_affiliation_strings":["Department of Computing, University of Oviedo, Campus de Viesques, Gij\u00f3n, 33204, Asturias, Spain"],"affiliations":[{"raw_affiliation_string":"Department of Computing, University of Oviedo, Campus de Viesques, Gij\u00f3n, 33204, Asturias, Spain","institution_ids":["https://openalex.org/I165339363"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5069099983"],"corresponding_institution_ids":["https://openalex.org/I165339363"],"apc_list":{"value":2100,"currency":"USD","value_usd":2100},"apc_paid":{"value":2100,"currency":"USD","value_usd":2100},"fwci":0.5137,"has_fulltext":true,"cited_by_count":7,"citation_normalized_percentile":{"value":0.65860065,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"2020","issue":null,"first_page":"1","last_page":"14"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10651","display_name":"IPv6, Mobility, Handover, Networks, Security","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10651","display_name":"IPv6, Mobility, Handover, Networks, Security","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12326","display_name":"Network Packet Processing and Optimization","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/1708","display_name":"Hardware and Architecture"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10400","display_name":"Network Security and Intrusion Detection","score":0.9969000220298767,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/asterisk","display_name":"Asterisk","score":0.9400498867034912},{"id":"https://openalex.org/keywords/voice-over-ip","display_name":"Voice over IP","score":0.8631006479263306},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8018100261688232},{"id":"https://openalex.org/keywords/modular-design","display_name":"Modular design","score":0.4761655032634735},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.4599129557609558},{"id":"https://openalex.org/keywords/the-internet","display_name":"The Internet","score":0.4338362216949463},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.432075560092926},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.2103291153907776}],"concepts":[{"id":"https://openalex.org/C2777977813","wikidata":"https://www.wikidata.org/wiki/Q190212","display_name":"Asterisk","level":4,"score":0.9400498867034912},{"id":"https://openalex.org/C171246234","wikidata":"https://www.wikidata.org/wiki/Q81945","display_name":"Voice over IP","level":3,"score":0.8631006479263306},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8018100261688232},{"id":"https://openalex.org/C101468663","wikidata":"https://www.wikidata.org/wiki/Q1620158","display_name":"Modular design","level":2,"score":0.4761655032634735},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.4599129557609558},{"id":"https://openalex.org/C110875604","wikidata":"https://www.wikidata.org/wiki/Q75","display_name":"The Internet","level":2,"score":0.4338362216949463},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.432075560092926},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.2103291153907776}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1155/2020/8853625","is_oa":true,"landing_page_url":"http://doi.org/10.1155/2020/8853625","pdf_url":"https://downloads.hindawi.com/journals/scn/2020/8853625.pdf","source":{"id":"https://openalex.org/S120683614","display_name":"Security and Communication Networks","issn_l":"1939-0114","issn":["1939-0114","1939-0122"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319869","host_organization_name":"Hindawi Publishing Corporation","host_organization_lineage":["https://openalex.org/P4310319869"],"host_organization_lineage_names":["Hindawi Publishing Corporation"],"type":"journal"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Security and Communication Networks","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:4cf7792b2b7d41fd9324905a7865109a","is_oa":true,"landing_page_url":"https://doaj.org/article/4cf7792b2b7d41fd9324905a7865109a","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Security and Communication Networks, Vol 2020 (2020)","raw_type":"article"},{"id":"pmh:oai:hindawi.com:10.1155/2020/8853625","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2020/8853625","pdf_url":null,"source":{"id":"https://openalex.org/S4306400340","display_name":"Hindawi Journal of Chemistry (Hindawi)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210126990","host_organization_name":"Hindawi (United Kingdom)","host_organization_lineage":["https://openalex.org/I4210126990"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Research Article"}],"best_oa_location":{"id":"doi:10.1155/2020/8853625","is_oa":true,"landing_page_url":"http://doi.org/10.1155/2020/8853625","pdf_url":"https://downloads.hindawi.com/journals/scn/2020/8853625.pdf","source":{"id":"https://openalex.org/S120683614","display_name":"Security and Communication Networks","issn_l":"1939-0114","issn":["1939-0114","1939-0122"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319869","host_organization_name":"Hindawi Publishing Corporation","host_organization_lineage":["https://openalex.org/P4310319869"],"host_organization_lineage_names":["Hindawi Publishing Corporation"],"type":"journal"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Security and Communication Networks","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Industry, innovation and infrastructure","score":0.6399999856948853,"id":"https://metadata.un.org/sdg/9"}],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3115014917.pdf","grobid_xml":"https://content.openalex.org/works/W3115014917.grobid-xml"},"referenced_works_count":20,"referenced_works":["https://openalex.org/W331396756","https://openalex.org/W1580558884","https://openalex.org/W1968239259","https://openalex.org/W1975113377","https://openalex.org/W2017112621","https://openalex.org/W2054483116","https://openalex.org/W2075530749","https://openalex.org/W2075714115","https://openalex.org/W2093942808","https://openalex.org/W2096549642","https://openalex.org/W2149176711","https://openalex.org/W2346060509","https://openalex.org/W2426038346","https://openalex.org/W2476556894","https://openalex.org/W2605091964","https://openalex.org/W2752329310","https://openalex.org/W2811043787","https://openalex.org/W2895531884","https://openalex.org/W4235075383","https://openalex.org/W6611303550"],"related_works":["https://openalex.org/W1590227409","https://openalex.org/W2113584197","https://openalex.org/W2612921727","https://openalex.org/W2241745500","https://openalex.org/W2407754385","https://openalex.org/W1968239259","https://openalex.org/W4235396226","https://openalex.org/W4254440825","https://openalex.org/W2547811426","https://openalex.org/W1558053843"],"abstract_inverted_index":{"Voice":[0],"over":[1,17],"IP":[2],"(VoIP)":[3],"is":[4,49,57,147,210],"a":[5,45,91,131],"set":[6],"of":[7,44,80,90,94,104,110,143,178,207,228,240],"software":[8],"and":[9,30,75,117,121,137,155,162,213,226],"hardware":[10],"technologies":[11],"used":[12],"for":[13,134],"making":[14],"voice":[15,29],"calls":[16],"the":[18,50,58,102,105,108,141,168,176,179,188,197,205,208,224,229,238,241,249],"Internet.":[19],"VoIP":[20,46],"has":[21],"been":[22,219],"massively":[23],"deployed":[24,62],"in":[25,140,158,182],"corporative":[26],"environments":[27],"since":[28],"data":[31],"network":[32,47],"convergence":[33],"enables":[34],"unified":[35],"communication":[36],"services":[37],"while":[38],"reducing":[39],"costs.":[40],"The":[41,78,149],"main":[42],"component":[43],"infrastructure":[48],"private":[51],"branch":[52],"exchange":[53],"(PBX).":[54],"Nowadays,":[55],"Asterisk":[56,145,165,180,198,230],"most":[59],"widespread":[60],"PBX":[61,81,146,181,199,231],"within":[63],"corporations":[64],"due":[65],"to":[66,114,119,160,184,200,222],"its":[67,73],"open":[68],"access":[69],"technology,":[70],"along":[71],"with":[72],"modular":[74],"flexible":[76],"design.":[77],"configuration":[79,87,142,177],"systems":[82,112],"usually":[83,122],"relies":[84],"on":[85,101],"multiple":[86],"files":[88],"composed":[89],"vast":[92],"number":[93],"parameters":[95],"that":[96,194,237],"may":[97],"have":[98,218],"an":[99,144,164],"impact":[100],"security":[103,138,225,239],"system.":[106],"Therefore,":[107],"setup":[109],"such":[111],"tends":[113],"be":[115],"complicated":[116],"prone":[118],"errors":[120],"requires":[123],"highly":[124,214],"specialized":[125],"human":[126],"intervention.":[127],"In":[128],"this":[129],"research,":[130],"diagnosis":[132],"platform":[133,151,169,189,209,242],"discovering":[135],"vulnerabilities":[136],"breaches":[139],"presented.":[148],"proposed":[150,250],"performs":[152,190],"both":[153],"reactive":[154],"proactive":[156],"actions":[157],"order":[159,183],"reconfigure":[161,196],"harden":[163],"PBX.":[166],"Firstly,":[167],"reacts":[170],"after":[171],"certain":[172],"events":[173],"by":[174],"modifying":[175],"mitigate":[185],"risks.":[186],"Secondly,":[187],"several":[191],"on-demand":[192],"assessments":[193],"also":[195],"improve":[201],"overall":[202],"security.":[203],"Finally,":[204],"functionality":[206],"easily":[211],"extensible":[212],"customizable.":[215],"Extensive":[216],"tests":[217],"carried":[220],"out":[221],"assess":[223],"performance":[227,245],"when":[232,247],"facing":[233],"attacks.":[234],"Results":[235],"show":[236],"increases,":[243],"avoiding":[244],"degradation":[246],"using":[248],"platform.":[251]},"counts_by_year":[{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}