{"id":102584,"date":"2021-12-11T15:36:53","date_gmt":"2021-12-11T13:36:54","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimosti-v-grafana-pozvolyayushhie-poluchit-dostup-k-fajlam-v-sisteme"},"modified":"2021-12-11T15:36:53","modified_gmt":"2021-12-11T13:36:54","slug":"uyazvimosti-v-grafana-pozvolyayushhie-poluchit-dostup-k-fajlam-v-sisteme","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/uyazvimosti-v-grafana-pozvolyayushhie-poluchit-dostup-k-fajlam-v-sisteme","title":{"rendered":"A Grafana sebezhet\u0151s\u00e9gei, amelyek lehet\u0151v\u00e9 teszik a f\u00e1jlokhoz val\u00f3 hozz\u00e1f\u00e9r\u00e9st a rendszerben","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A Grafana ny\u00edlt adatelemz\u0151 platformj\u00e1n egy sebezhet\u0151s\u00e9get (CVE-2021-43798) fedeztek fel, amely lehet\u0151v\u00e9 teszi a felhaszn\u00e1l\u00f3k sz\u00e1m\u00e1ra, hogy kiker\u00fclj\u00e9k az alap\u00e9rtelmezett mapp\u00e1t, \u00e9s hozz\u00e1f\u00e9rjenek tetsz\u0151leges f\u00e1jlokhoz a kiszolg\u00e1l\u00f3 helyi f\u00e1jlrendszer\u00e9ben, amennyire a Grafana-t futtat\u00f3 felhaszn\u00e1l\u00f3 hozz\u00e1f\u00e9r\u00e9si jogai lehet\u0151v\u00e9 teszik. A probl\u00e9ma a \u201e\/public\/plugins\/\/\u201d \u00fatkezel\u0151 hib\u00e1s m\u0171k\u00f6d\u00e9s\u00e9b\u0151l ad\u00f3dik, amely megengedte a \u201e..\u201d karakterek haszn\u00e1lat\u00e1t az al-mapp\u00e1k el\u00e9r\u00e9s\u00e9hez. <\/p>\n

A sebezhet\u0151s\u00e9g kihaszn\u00e1lhat\u00f3 k\u00fcl\u00f6nf\u00e9le el\u0151re telep\u00edtett b\u0151v\u00edtm\u00e9nyek URL-j\u00e9nek megkeres\u00e9s\u00e9vel, mint p\u00e9ld\u00e1ul a \"\/public\/plugins\/graph\/\", \"\/public\/plugins\/mysql\/\" \u00e9s \"\/public\/plugins\/prometheus\/\" (\u00f6sszesen k\u00f6r\u00fclbel\u00fcl 40 b\u0151v\u00edtm\u00e9ny van telep\u00edtve). P\u00e9ld\u00e1ul a \"\/etc\/passwd\" f\u00e1jl el\u00e9r\u00e9s\u00e9hez a \"\/public\/plugins\/prometheus\/................etc\/passwd\" k\u00e9rd\u00e9st lehetett k\u00fcldeni. A kihaszn\u00e1l\u00e1s nyomainak felder\u00edt\u00e9se \u00e9rdek\u00e9ben aj\u00e1nlott ellen\u0151rizni a \"..\" maszk jelenl\u00e9t\u00e9t a http-szerver napl\u00f3iban.

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

A probl\u00e9ma a 8.0.0-beta1 verzi\u00f3t\u00f3l jelentkezett, \u00e9s a Grafana 8.3.1, 8.2.7, 8.1.8 \u00e9s 8.0.7 verzi\u00f3kban megoldott\u00e1k, de k\u00e9s\u0151bb k\u00e9t hasonl\u00f3 sebezhet\u0151s\u00e9get (CVE-2021-43813, CVE-2021-43815) is felfedeztek, amelyek a Grafana 5.0.0 \u00e9s a Grafana 8.0.0-beta3 verzi\u00f3kt\u00f3l kezd\u0151dtek, lehet\u0151v\u00e9 t\u00e9ve a bejelentkezett Grafana felhaszn\u00e1l\u00f3k sz\u00e1m\u00e1ra, hogy hozz\u00e1f\u00e9rjenek tetsz\u0151leges f\u00e1jlokhoz a rendszerben, amelyek .md \u00e9s .csv kiterjeszt\u00e9s\u0171ek (csak kis- vagy nagybet\u0171s f\u00e1jlnevekkel), a \u201e..\u201d karakterek manipul\u00e1l\u00e1s\u00e1val az \u201e\/api\/plugins\/.*?\/markdown\/.*?\u201d \u00e9s az \u201e\/api\/ds\/query\u201d \u00fatvonalakon. A sebezhet\u0151s\u00e9gek orvosl\u00e1s\u00e1ra a Grafana 8.3.2 \u00e9s 7.5.12 friss\u00edt\u00e9seket hozt\u00e1k l\u00e9tre.
\n
Forr\u00e1s: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0435 \u0432\u0438\u0437\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 Grafana \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2021-43798), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u0432\u044b\u0439\u0442\u0438 \u0437\u0430 \u043f\u0440\u0435\u0434\u0435\u043b\u044b \u0431\u0430\u0437\u043e\u0432\u043e\u0433\u043e \u043a\u0430\u0442\u0430\u043b\u043e\u0433\u0430 \u0438 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u043c \u0444\u0430\u0439\u043b\u0430\u043c \u0432 \u043b\u043e\u043a\u0430\u043b\u044c\u043d\u043e\u0439 \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u0441\u0435\u0440\u0432\u0435\u0440\u0430, \u043d\u0430\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u044d\u0442\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u043f\u0440\u0430\u0432\u0430 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f, \u043f\u043e\u0434 \u043a\u043e\u0442\u043e\u0440\u044b\u043c \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u0442\u0441\u044f Grafana. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u043d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u043e\u0439 \u0440\u0430\u0431\u043e\u0442\u043e\u0439 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430 \u043f\u0443\u0442\u0438 «\/public\/plugins\/<plugin-id>\/», \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0434\u043e\u043f\u0443\u0441\u043a\u0430\u043b\u043e\u0441\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0438\u043c\u0432\u043e\u043b\u043e\u0432 «..» \u0434\u043b\u044f \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a \u043d\u0438\u0436\u0435\u043b\u0435\u0436\u0430\u0449\u0438\u043c \u043a\u0430\u0442\u0430\u043b\u043e\u0433\u0430\u043c. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":102585,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-102584","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\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\udd47 Vulnerabilities in Grafana that allow file access in the system | ProHoster","description":"A vulnerability has been identified in the Grafana data visualization platform (CVE-2021-43798) that allows users to navigate outside the base directory and access arbitrary files in the server's local file system.","canonical_url":"https:\/\/prohoster.info\/hu\/blog\/news\/uyazvimosti-v-grafana-pozvolyayushhie-poluchit-dostup-k-fajlam-v-sisteme","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hu_HU","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432 Grafana, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0435 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u0444\u0430\u0439\u043b\u0430\u043c \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 | ProHoster","og:description":"\u0412 \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0435 \u0432\u0438\u0437\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 Grafana \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2021-43798), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u0432\u044b\u0439\u0442\u0438 \u0437\u0430 \u043f\u0440\u0435\u0434\u0435\u043b\u044b \u0431\u0430\u0437\u043e\u0432\u043e\u0433\u043e \u043a\u0430\u0442\u0430\u043b\u043e\u0433\u0430 \u0438 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u043c 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\u0441\u0435\u0440\u0432\u0435\u0440\u0430.","og:url":"https:\/\/prohoster.info\/hu\/blog\/news\/uyazvimosti-v-grafana-pozvolyayushhie-poluchit-dostup-k-fajlam-v-sisteme","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2021-12-11T13:36:54+00:00","article:modified_time":"2021-12-11T13:36:54+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"102584","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":null,"breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-12-11 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