{"id":107077,"date":"2023-03-03T12:48:24","date_gmt":"2023-03-03T10:48:24","guid":{"rendered":"https:\/\/prohoster.info\/?p=107077"},"modified":"2023-03-05T11:49:19","modified_gmt":"2023-03-05T09:49:19","slug":"uyazvimost-v-strongswan-ipsec-dopuskayushhaya-udalyonnoe-vypolnenie-koda","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/uyazvimost-v-strongswan-ipsec-dopuskayushhaya-udalyonnoe-vypolnenie-koda","title":{"rendered":"A strongSwan IPsec s\u00e9r\u00fcl\u00e9kenys\u00e9ge lehet\u0151v\u00e9 teszi a t\u00e1voli k\u00f3dv\u00e9grehajt\u00e1st","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

El\u00e9rhet\u0151 a strongSwan 5.9.10 kiad\u00e1sa, egy ny\u00edlt forr\u00e1sk\u00f3d\u00fa csomag, amely VPN-kapcsolatok l\u00e9trehoz\u00e1s\u00e1ra szolg\u00e1l az IPSec protokoll alapj\u00e1n, Linux, Android, FreeBSD \u00e9s macOS rendszereken. Az \u00faj verzi\u00f3ban egy s\u00falyos biztons\u00e1gi r\u00e9s (CVE-2023-26463) ker\u00fclt jav\u00edt\u00e1sra, amelyet az authentik\u00e1ci\u00f3 megker\u00fcl\u00e9s\u00e9re lehet felhaszn\u00e1lni, de potenci\u00e1lisan a t\u00e1mad\u00f3 k\u00f3dj\u00e1nak futtat\u00e1s\u00e1hoz is vezethet a szerveren vagy a kliensen. A probl\u00e9ma akkor jelentkezik, amikor a speci\u00e1lisan elk\u00e9sz\u00edtett tan\u00fas\u00edtv\u00e1nyokat ellen\u0151rzik az EAP (Extensible Authentication Protocol) TLS-alap\u00fa authentik\u00e1ci\u00f3s m\u00f3dszereiben. <\/p>\n

A biztons\u00e1gi r\u00e9s abb\u00f3l fakad, hogy a TLS-kezel\u0151 helytelen\u00fcl fogad el nyilv\u00e1nos kulcsokat a szomsz\u00e9dos csom\u00f3pont (peer) tan\u00fas\u00edtv\u00e1ny\u00e1b\u00f3l, megb\u00edzhat\u00f3nak v\u00e9ve \u0151ket, m\u00e9g akkor is, ha a tan\u00fas\u00edtv\u00e1ny nem ellen\u0151rizhet\u0151 sikeresen. K\u00fcl\u00f6n\u00f6sen, amikor a tls_find_public_key() f\u00fcggv\u00e9nyt h\u00edvj\u00e1k, a megb\u00edzhat\u00f3 tan\u00fas\u00edtv\u00e1nyok meghat\u00e1roz\u00e1s\u00e1hoz kulcst\u00edpus alap\u00fa mint\u00e1t alkalmaz, azonban a kulcst\u00edpus keres\u00e9s\u00e9re szolg\u00e1l\u00f3 v\u00e1ltoz\u00f3 b\u00e1rmilyen k\u00f6r\u00fclm\u00e9nyek k\u00f6z\u00f6tt be\u00e1ll\u00edt\u00e1sra ker\u00fcl, m\u00e9g ha a tan\u00fas\u00edtv\u00e1ny nem is megb\u00edzhat\u00f3. <\/p>\n

Tov\u00e1bb\u00e1, a kulccsal val\u00f3 manipul\u00e1ci\u00f3val el\u00e9rhet\u0151 a referencia sz\u00e1ml\u00e1l\u00f3 cs\u00f6kkent\u00e9se (ha a tan\u00fas\u00edtv\u00e1ny nem megb\u00edzhat\u00f3, a kulcsra mutat\u00f3 objektum hivatkoz\u00e1sa felszabadul a kulcst\u00edpus meghat\u00e1roz\u00e1sa ut\u00e1n) \u00e9s a mem\u00f3ria felszabad\u00edt\u00e1sa egy m\u00e1sik kulcsot haszn\u00e1l\u00f3 objektum sz\u00e1m\u00e1ra. A vizsg\u00e1lt hiba nem z\u00e1rja ki a kihaszn\u00e1l\u00e1sok l\u00e9trehoz\u00e1s\u00e1t az inform\u00e1ci\u00f3k sziv\u00e1rogtat\u00e1s\u00e1ra a mem\u00f3ri\u00e1b\u00f3l, \u00e9s a saj\u00e1t k\u00f3d futtat\u00e1s\u00e1ra. <\/p>\n

T\u00e1mad\u00e1s szerver<\/a> a kliens \u00e1ltal al\u00e1\u00edr\u00e1s n\u00e9lk\u00fcli tan\u00fas\u00edtv\u00e1ny elk\u00fcld\u00e9s\u00e9vel val\u00f3sul meg a kliens authentik\u00e1l\u00e1s\u00e1ra az EAP-TLS, EAP-TTLS, EAP-PEAP \u00e9s EAP-TNC m\u00f3dszerek haszn\u00e1lat\u00e1val. A kliens ellen a t\u00e1mad\u00e1s a k\u00f6vetkez\u0151n kereszt\u00fcl v\u00e9gezhet\u0151 el szerverrel<\/a> k\u00fcl\u00f6nlegesen elk\u00e9sz\u00edtett tan\u00fas\u00edtv\u00e1ny visszak\u00fcld\u00e9s\u00e9vel. A hiba a strongSwan 5.9.8 \u00e9s 5.9.9 kiad\u00e1saiban jelentkezik. A csomagok friss\u00edt\u00e9seinek kiad\u00e1s\u00e1t nyomon lehet k\u00f6vetni a k\u00f6vetkez\u0151 oldalakon: Debian, Ubuntu, Gentoo, RHEL, SUSE, Arch, FreeBSD, NetBSD.
\n
Forr\u00e1s: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0432\u044b\u043f\u0443\u0441\u043a strongSwan 5.9.10, \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0430\u043a\u0435\u0442\u0430 \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f VPN-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0439 \u043d\u0430 \u0431\u0430\u0437\u0435 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 IPSec, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u043e\u0433\u043e \u0432 Linux, Android, FreeBSD \u0438 macOS. \u0412 \u043d\u043e\u0432\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u043e\u043f\u0430\u0441\u043d\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2023-26463), \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0430 \u0434\u043b\u044f \u043e\u0431\u0445\u043e\u0434\u0430 \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438, \u043d\u043e \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u0442\u0430\u043a\u0436\u0435 \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044e \u043a\u043e\u0434\u0430 \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0435\u0433\u043e \u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u0435 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0438\u043b\u0438 \u043a\u043b\u0438\u0435\u043d\u0442\u0430. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043f\u0440\u0438 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0435 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u044b\u0445 \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0432 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-107077","post","type-post","status-publish","format-standard","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\udd47Biztons\u00e1gi r\u00e9s a strongSwan IPsec-ben, amely t\u00e1voli k\u00f3d v\u00e9grehajt\u00e1s\u00e1t teszi lehet\u0151v\u00e9 | ProHoster","description":"El\u00e9rhet\u0151 a strongSwan 5.9.10 kiad\u00e1sa, egy ny\u00edlt forr\u00e1sk\u00f3d\u00fa csomag, amely VPN-kapcsolatok l\u00e9trehoz\u00e1s\u00e1ra szolg\u00e1l az IPSec protokoll alapj\u00e1n, Linux, Android, FreeBSD \u00e9s macOS rendszereken.","canonical_url":"https:\/\/prohoster.info\/hu\/blog\/news\/uyazvimost-v-strongswan-ipsec-dopuskayushhaya-udalyonnoe-vypolnenie-koda","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\u044c \u0432 strongSwan IPsec, \u0434\u043e\u043f\u0443\u0441\u043a\u0430\u044e\u0449\u0430\u044f \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u043a\u043e\u0434\u0430 | ProHoster","og:description":"\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0432\u044b\u043f\u0443\u0441\u043a strongSwan 5.9.10, \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0430\u043a\u0435\u0442\u0430 \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f VPN-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0439 \u043d\u0430 \u0431\u0430\u0437\u0435 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 IPSec, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u043e\u0433\u043e \u0432 Linux, Android, FreeBSD \u0438 macOS.","og:url":"https:\/\/prohoster.info\/hu\/blog\/news\/uyazvimost-v-strongswan-ipsec-dopuskayushhaya-udalyonnoe-vypolnenie-koda","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":"2023-03-03T10:48:24+00:00","article:modified_time":"2023-03-05T09:49:19+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"107077","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":"2026-02-09 21:46:34","updated":"2026-02-09 21:46:34","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts\/107077","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/comments?post=107077"}],"version-history":[{"count":2,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts\/107077\/revisions"}],"predecessor-version":[{"id":172813,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts\/107077\/revisions\/172813"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/media?parent=107077"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/categories?post=107077"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/tags?post=107077"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}