{"id":182505,"date":"2026-07-07T16:53:19","date_gmt":"2026-07-07T14:53:19","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/bekdor-v-proshivkah-tenda-pozvolyayushhij-poluchit-dostup-s-pravami-administratora"},"modified":"2026-07-07T16:53:19","modified_gmt":"2026-07-07T14:53:19","slug":"bekdor-v-proshivkah-tenda-pozvolyayushhij-poluchit-dostup-s-pravami-administratora","status":"publish","type":"post","link":"https:\/\/prohoster.info\/nl\/blog\/news\/bekdor-v-proshivkah-tenda-pozvolyayushhij-poluchit-dostup-s-pravami-administratora","title":{"rendered":"Backdoor in firmware van Tenda die toegang met beheerdersrechten mogelijk maakt","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>In de firmware die wordt gebruikt in consumenten- en industri\u00eble routers, switches, draadloze toegangspunten en videobewakingssystemen van Tenda, is er een backdoor (CVE-2026-11405) ontdekt die toegang tot de webinterface met beheerdersrechten mogelijk maakt, omzeilend het standaard authenticatieproces en onafhankelijk van de instellingen van het beheerdersaccount. De verleende rechten bieden de mogelijkheid om alle instellingen te beheren, het verkeer te manipuleren, beveiligingsmaatregelen uit te schakelen en het apparaat als een springplank voor aanvallen op systemen in het lokale netwerk te gebruiken.    <\/p>\n<p>Het probleem wordt veroorzaakt door de undocumented functionaliteit in het \/bin\/httpd proces, ingebouwd in de login() functie. In het geval van een mislukte controle van het wachtwoord-hash op basis van het MD5-algoritme voor elke gebruikersnaam, werd in de code de functie GetValue(&#171;sys.rzadmin.password&#187;) aangeroepen, die controleert of het wachtwoord overeenkomt met de waarde die in de firmware in platte tekst is gedefinieerd. Bij overeenstemming, ongeacht de opgegeven gebruikersnaam, werd er een sessie met administratorrechten aangemaakt.    <\/p>\n<p>Voor het gebruik van de backdoor is het voldoende om toegang te hebben om verzoeken naar het apparaat te sturen via HTTP of HTTPS. Als een beveiligingsmaatregel wordt aanbevolen om toegang tot de ingebouwde HTTP-server in de firmware vanuit externe netwerken te blokkeren.     <\/p>\n<p>De aanwezigheid van het probleem is bevestigd in de firmware:  <\/p>\n<ul>\n<li> US_FH1201V1.0BR_V1.2.0.14(408)_EN_TD\n<li> US_W15EV1.0br_V15.11.0.5(1068_1567_841)_EN_TDE\n<li> US_AC10V1.0re_V15.03.06.46_multi_TDE01\n<li> US_AC5V1.0RTL_V15.03.06.48_multi_TDE01\n<li> US_AC6V2.0RTL_V15.03.06.51_multi_TDE01  <\/ul>\n<p>Bron: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=65856\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u043f\u0440\u043e\u0448\u0438\u0432\u043a\u0430\u0445, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u044b\u0445 \u0432 \u043f\u043e\u0442\u0440\u0435\u0431\u0438\u0442\u0435\u043b\u044c\u0441\u043a\u0438\u0445 \u0438 \u043f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u044b\u0445 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0442\u043e\u0440\u0430\u0445, \u043a\u043e\u043c\u043c\u0443\u0442\u0430\u0442\u043e\u0440\u0430\u0445, \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u044b\u0445 \u0442\u043e\u0447\u043a\u0430\u0445 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u0438 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 \u0432\u0438\u0434\u0435\u043e\u043d\u0430\u0431\u043b\u044e\u0434\u0435\u043d\u0438\u044f \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Tenda, \u0432\u044b\u044f\u0432\u043b\u0435\u043d \u0431\u044d\u043a\u0434\u043e\u0440 (CVE-2026-11405), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0439 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a web-\u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0443 \u0441 \u043f\u0440\u0430\u0432\u0430\u043c\u0438 \u0430\u0434\u043c\u0438\u043d\u0438\u0441\u0442\u0440\u0430\u0442\u043e\u0440\u0430 \u0432 \u043e\u0431\u0445\u043e\u0434 \u0448\u0442\u0430\u0442\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430 \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u0438 \u043d\u0435\u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e \u043e\u0442 \u043d\u0430\u0441\u0442\u0440\u043e\u0435\u043a \u0443\u0447\u0451\u0442\u043d\u043e\u0439 \u0437\u0430\u043f\u0438\u0441\u0438 \u0430\u0434\u043c\u0438\u043d\u0438\u0441\u0442\u0440\u0430\u0442\u043e\u0440\u0430. \u041f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u043c\u044b\u0435 \u043f\u0440\u0430\u0432\u0430 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u0442\u044c \u0432\u0441\u0435\u043c\u0438 \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0430\u043c\u0438, \u043c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0442\u0440\u0430\u0444\u0438\u043a\u043e\u043c, \u043e\u0442\u043a\u043b\u044e\u0447\u0438\u0442\u044c \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430 \u0437\u0430\u0449\u0438\u0442\u044b \u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u043e [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-182505","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u043f\u0440\u043e\u0448\u0438\u0432\u043a\u0430\u0445, 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