{"id":119440,"date":"2024-08-13T15:43:13","date_gmt":"2024-08-13T13:43:15","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-web-brauzerah-pozvolyayushhaya-atakovat-lokalnye-servisy-cherez-ip-0-0-0-0"},"modified":"2024-08-13T15:43:13","modified_gmt":"2024-08-13T13:43:15","slug":"uyazvimost-v-web-brauzerah-pozvolyayushhaya-atakovat-lokalnye-servisy-cherez-ip-0-0-0-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/uyazvimost-v-web-brauzerah-pozvolyayushhaya-atakovat-lokalnye-servisy-cherez-ip-0-0-0-0","title":{"rendered":"Vulnerabilities in web browsers that allow attacks on local services via IP 0.0.0.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Firma Oligo Security opublikowa\u0142a informacje o podatno\u015bci dotycz\u0105cej przegl\u0105darek Chrome, Firefox i Safari, umo\u017cliwiaj\u0105cej obej\u015bcie ogranicze\u0144 dost\u0119pu do us\u0142ug sieciowych dost\u0119pnych tylko na lokalnym systemie, poprzez odwo\u0142anie do adresu IP 0.0.0.0. Pierwsze ostrze\u017cenia o tej podatno\u015bci pojawi\u0142y si\u0119 18 lat temu, ale problem do tej pory nie zosta\u0142 rozwi\u0105zany. <\/p>\n

Podatno\u015b\u0107, kt\u00f3ra wyst\u0119puje tylko w systemach Linux i macOS, spowodowana jest tym, \u017ce adres IP 0.0.0.0 na tych platformach prowadzi do lokalnego interfejsu sieciowego (localhost), tzn. wys\u0142anie zapytania do 0.0.0.0 jest r\u00f3wnowa\u017cne z zapytaniem do adresu 127.0.0.1. W nowoczesnych przegl\u0105darkach istniej\u0105 \u015brodki przeciwdzia\u0142aj\u0105ce odwo\u0142aniu do 127.0.0.1 podczas pracy z zewn\u0119trznymi witrynami, poniewa\u017c mo\u017ce ono by\u0107 wykorzystywane do manipulacji wewn\u0119trznymi us\u0142ugami na systemie u\u017cytkownika, dost\u0119pnymi tylko dla lokalnych aplikacji. <\/p>\n

Podatno\u015b\u0107 ta pozwala na obej\u015bcie zakazu odwo\u0142ania do 127.0.0.1 i zorganizowanie ataku na wewn\u0119trzne us\u0142ugi podczas otwierania w przegl\u0105darce zewn\u0119trznej strony kontrolowanej przez atakuj\u0105cego. Przy odwo\u0142aniu przez 0.0.0.0 mechanizmy CORS (Cross-Origin Resource Sharing) oraz PNA (Private Network Access) nie mog\u0105 zapobiec dokonaniu takiego ataku. Odnotowano, \u017ce problem nie jest tak niegro\u017any, jak si\u0119 wydaje, i jest ju\u017c wykorzystywany przez cyberprzest\u0119pc\u00f3w w czasie rzeczywistych atak\u00f3w, kt\u00f3re eksploatuj\u0105 krytyczne podatno\u015bci w aplikacjach serwerowych, do kt\u00f3rych dost\u0119p maj\u0105 tylko lokalne systemy.

\"Vulnerabilities\"Vulnerabilities<\/center> <\/p>\n

Na przyk\u0142ad, wykorzystanie 0.0.0.0 do dost\u0119pu do lokalnych us\u0142ug zosta\u0142o zarejestrowane w atakach ShadowRay i Selenium Grid, kt\u00f3re mia\u0142y miejsce w marcu i lipcu, i by\u0142y u\u017cywane do uruchamiania kodu na systemach deweloper\u00f3w. W przypadku ataku ShadowRay celem by\u0142y systemy deweloper\u00f3w korzystaj\u0105cych z frameworka AI Ray. Drugi atak skoncentrowany by\u0142 na eksploatacji krytycznej podatno\u015bci w platformie Selenium Grid w konfiguracjach akceptuj\u0105cych zapytania tylko z lokalnego hosta. <\/p>\n

Dodatkowo wspomina si\u0119 o mo\u017cliwo\u015bci zastosowania metody do eksploatacji podatno\u015bci ShellTorch w serwerze<\/a> PyTorch TorchServe, stosowanym na komputerach deweloper\u00f3w aplikacji AI. Dost\u0119p do lokalnych us\u0142ug sieciowych mo\u017ce by\u0107 r\u00f3wnie\u017c wykorzystywany do skanowania port\u00f3w sieciowych w celu po\u015bredniej identyfikacji u\u017cytkownika. <\/p>\n

Deweloperzy Firefox przygotowali zmian\u0119 specyfikacji dla wywo\u0142ania Fetch, kt\u00f3ra zabrania dost\u0119pu do 0.0.0.0, ale na razie nie okre\u015blili terminu rozpocz\u0119cia blokady w przegl\u0105darce. W Chrome planuj\u0105 rozpocz\u0105\u0107 blokad\u0119 0.0.0.0 w wersji Chrome 128, kt\u00f3ra ma zadebiutowa\u0107 w przysz\u0142ym tygodniu. W Safari planuj\u0105 wprowadzi\u0107 blokad\u0119 0.0.0.0 w wersji Safari 18.
\n
\u0179r\u00f3d\u0142o: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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[…]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":119441,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-119440","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Podatno\u015b\u0107 w przegl\u0105darkach internetowych, kt\u00f3ra pozwala atakowa\u0107 lokalne us\u0142ugi poprzez IP 0.0.0.0 | ProHoster","description":"Firma Oligo Security opublikowa\u0142a informacje o podatno\u015bci, kt\u00f3ra dotyczy Chrome, Firefox i Safari, i umo\u017cliwia omini\u0119cie ograniczenia dost\u0119pu do us\u0142ug sieciowych, kt\u00f3re s\u0105 dost\u0119pne tylko w 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