SS7<\/strong> <\/a>netv\u00e6rk, og svaret best\u00e5r ogs\u00e5 af basestationens individualitet. Hver eneste basestation har s\u00e6rlige koordinater og adresserer et omr\u00e5de. Som et resultat af t\u00e6theden varierer det politiske omr\u00e5de i en storby fra tusinder af tusinder.<\/p>\n <\/p>\n
En angriber er i stand til at udnytte mobilnetv\u00e6rkets s\u00e6regenheder til at oprette placeringsordrer, ud over at spore basestationen med sin egen individualitet ved hj\u00e6lp af Stealthy SS7 Attacks 4-5 en r\u00e6kke webv\u00e6rkt\u00f8jer. Sandheden i denne lokaliseringsopdagelse er baseret p\u00e5 basestationens politikomr\u00e5de. Den kriminelle etablerer stedet for den basestation, som fungerer for abonnenten p\u00e5 nuv\u00e6rende tidspunkt.<\/p>\n
Vores analyser afsl\u00f8rer, at lopper har opdaget, at de kan fasts\u00e6tte abonnentens placering med pr\u00e6cision. En mobil enhed f\u00e5r tegn i basestationer. Hvis gerningsmanden bestemmer koordinaterne for 3 eller endda 2 basestationer, der er t\u00e6ttest p\u00e5 denne abonnent, kan abonnentens placering indsn\u00e6vres.<\/p>\n
<\/p>\n
Normalt v\u00e6lger en mobil enhed en basestation med alle radiotilstande i l\u00f8bet af en transaktion. Derfor skal den mobile enhed indtaste tegn med dette netv\u00e6rk. Selv bagmanden kan bruge en SMS til at starte en skjult transaktion med alle de \u00f8nskede abonnenter. Oplysningerne om disse meddelelser kan tilbydes fra abonnentens overvejelser.<\/p>\n
<\/p>\n
En endnu bedre m\u00e5de at skjule en transaktion p\u00e5 er altid at bruge skjulte USSD-meddelelser. Selvom denne form for transaktion ikke er indskrevet i opladningsproceduren, begynder de at udveksle tegn mellem din mobile enhed og netv\u00e6rket. Selv den ondsindede akt\u00f8r kan \u00f8ge placeringspr\u00e6cisionen ved at manipulere med basestationsidentifikationer og USSD-meddelelser.<\/p>\n
<\/p>\n
Indtr\u00e6ngeren beder om identifikatoren for deres basestation. Indtr\u00e6ngeren sender en tavs besked for at f\u00e5 abonnentens enheder til at udf\u00f8re en transaktion via en tr\u00e5dl\u00f8s port. I tilf\u00e6lde af at gerningsmanden f\u00e5r positioneringsfor\u00f8gelse.<\/p>\n
<\/p>\n
Netv\u00e6rket kan v\u00e6lge en ny basestation for at f\u00e5 den p\u00e5g\u00e6ldende transaktion, og VLR-databasen (Visitor Location Register) opgraderer ogs\u00e5 abonnentens placering. Den ubudne g\u00e6st sp\u00f8rger igen om abonnentens placering og f\u00e5r identifikatoren for denne basestation. Ergo kan den ubudne g\u00e6st finde frem til det omr\u00e5de, hvor abonnenten befinder sig p\u00e5 nuv\u00e6rende tidspunkt.<\/p>\n
<\/p>\n
Konklusion:<\/h2>\n
Selv \"walled garden\"-designet er for\u00e6ldet. Selv SS7-signaleringsprocessen er kendt som processen i telefonnetv\u00e6rket. Forud for oprettelsen af SS7 blev serviceordrer for abonnentforhold og forsendelse af informationspakker flyttet med en station. Denne metode blev opdateret og erstattet med alle de verdensomsp\u00e6ndende signalprogrammer (SS7) for over 30 \u00e5rtier siden. SS7-benchmarket fastl\u00e6gger protokollerne for udveksling af data og procedurer mellem netv\u00e6rksenheder i telekommunikationsvirksomheder. SS7 fungerer som en base for at f\u00e5 en signalinfrastruktur p\u00e5 lokale, nationale netv\u00e6rk.<\/p>\n
<\/p>\n
Det udgjorde ikke nogen trussel mod abonnenter eller operat\u00f8rer, selv da SS7-netv\u00e6rket viste sig at v\u00e6re en platform. Netv\u00e6rket udviklede sig til at matche normerne for mobillink og servicesupport, og i det 21. \u00e5rhundrede blev der ogs\u00e5 f\u00f8rst etableret et par signaltransportprotokoller kendt som SIGTRAN. SIGTRAN kan v\u00e6re en udvidelse til SS7, som g\u00f8r det muligt at anvende IP-netv\u00e6rk til at flytte beskeder, og denne opfindelse gjorde, at signalnetv\u00e6rket ikke l\u00e6ngere var spredt.<\/p>","protected":false},"excerpt":{"rendered":"
SS7-positioneringsforbedring under lokaliseringssporing Et af angrebene p\u00e5 SS7-netv\u00e6rk er sandsynligvis lokaliseringsobservation. En petitionsabonnents placering dirigeres ved hj\u00e6lp af SS7-netv\u00e6rk, og svaret omfatter ogs\u00e5 basestationens individualitet. Hver enkelt basestation har s\u00e6rlige koordinater og adresserer et omr\u00e5de. Som f\u00f8lge af t\u00e6theden er...<\/p>","protected":false},"author":1,"featured_media":1728,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[69,1],"tags":[],"class_list":["post-479","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sms-intercept","category-ss7-sms"],"yoast_head":"\n
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