{"id":125333,"date":"2025-05-21T15:05:14","date_gmt":"2025-05-21T13:05:14","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-biblioteke-openpgp-js-pozvolyayushhaya-obojti-verifikacziyu-soobshhenij"},"modified":"2025-05-21T15:05:14","modified_gmt":"2025-05-21T13:05:14","slug":"uyazvimost-v-biblioteke-openpgp-js-pozvolyayushhaya-obojti-verifikacziyu-soobshhenij","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/uyazvimost-v-biblioteke-openpgp-js-pozvolyayushhaya-obojti-verifikacziyu-soobshhenij","title":{"rendered":"Vulnerabilit\u00e1s az OpenPGP.js k\u00f6nyvt\u00e1rban, amely megker\u00fcli az \u00fczenetek hiteles\u00edt\u00e9s\u00e9t","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Az OpenPGP.js k\u00f6nyvt\u00e1rban egy sebezhet\u0151s\u00e9get (CVE-2025-47934) azonos\u00edtottak, amely lehet\u0151v\u00e9 teszi a t\u00e1mad\u00f3 sz\u00e1m\u00e1ra, hogy m\u00f3dos\u00edtott \u00fczenetet k\u00fcldj\u00f6n, amelyet a fogad\u00f3 \u00e9rv\u00e9nyes\u00edtettk\u00e9nt \u00e9szlel (az openpgp.verify \u00e9s az openpgp.decrypt funkci\u00f3k sikeres digit\u00e1lis al\u00e1\u00edr\u00e1s-ellen\u0151rz\u00e9st adnak vissza, annak ellen\u00e9re, hogy a tartalom meg van v\u00e1ltoztatva \u00e9s elt\u00e9r a megadott adatokt\u00f3l, amelyre az al\u00e1\u00edr\u00e1st l\u00e9trehozt\u00e1k). A sebezhet\u0151s\u00e9get az OpenPGP.js 5.11.3 \u00e9s 6.1.1 verzi\u00f3kban orvosolt\u00e1k. A probl\u00e9ma csak az OpenPGP.js 5.x \u00e9s 6.x \u00e1gakat \u00e9rinti, \u00e9s nem vonatkozik az OpenPGP.js 4.x verzi\u00f3ra. <\/p>\n

Az OpenPGP.js k\u00f6nyvt\u00e1r egy \u00f6n\u00e1ll\u00f3 OpenPGP protokoll megval\u00f3s\u00edt\u00e1st biztos\u00edt JavaScript nyelven, amely lehet\u0151v\u00e9 teszi b\u00f6ng\u00e9sz\u0151ben a titkos\u00edt\u00e1ssal \u00e9s a digit\u00e1lis al\u00e1\u00edr\u00e1sokkal val\u00f3 munk\u00e1lkod\u00e1st ny\u00edlt kulcsok alapj\u00e1n. A projekt a Proton Mail fejleszt\u0151i \u00e1ltal fejl\u0151dik, \u00e9s az \u00fczenetek v\u00e9gpontok k\u00f6z\u00f6tti titkos\u00edt\u00e1s\u00e1nak megszervez\u00e9se mellett olyan projektekben is alkalmazz\u00e1k, mint a FlowCrypt, Mymail-Crypt, UDC, Encrypt.to, PGP Anywhere \u00e9s Passbolt. <\/p>\n

A sebezhet\u0151s\u00e9g a be\u00e1gyazott al\u00e1\u00edr\u00e1s sz\u00f6veg\u00e9nek \u00e9rv\u00e9nyes\u00edt\u00e9s\u00e9re szolg\u00e1l\u00f3 elj\u00e1r\u00e1sokat \u00e9rinti (openpgp.verify) \u00e9s az al\u00e1\u00edrt \u00e9s titkos\u00edtott \u00fczeneteket (openpgp.decrypt). A t\u00e1mad\u00f3 megl\u00e9v\u0151 al\u00e1\u00edrt \u00fczeneteket haszn\u00e1lhat fel \u00faj \u00fczenetek kialak\u00edt\u00e1s\u00e1hoz, ahol a v\u00e9dtelen OpenPGP.js verzi\u00f3 kib\u0151v\u00edtett tartalm\u00e1t fogja visszaadni, amely elt\u00e9r az eredeti al\u00e1\u00edrt \u00fczenet tartalm\u00e1t\u00f3l. A sebezhet\u0151s\u00e9g nem \u00e9rinti a sz\u00f6vegt\u0151l k\u00fcl\u00f6n terjesztett al\u00e1\u00edr\u00e1sokat (a probl\u00e9ma csak akkor jelentkezik, ha az al\u00e1\u00edr\u00e1st egyetlen adatblokkban k\u00fcldik a sz\u00f6veggel egy\u00fctt). <\/p>\n

A hamis \u00fczenet l\u00e9trehoz\u00e1s\u00e1hoz a t\u00e1mad\u00f3nak elegend\u0151 egy be\u00e1gyazott vagy k\u00fcl\u00f6n al\u00e1\u00edr\u00e1ssal rendelkez\u0151 \u00fczenet megl\u00e9te, valamint az alapadatok ismerete, amelyeket az \u00fczenetben al\u00e1\u00edrtak. A t\u00e1mad\u00f3 m\u00f3dos\u00edthatja az \u00fczenetet \u00fagy, hogy a m\u00f3dos\u00edtott v\u00e1ltozathoz az al\u00e1\u00edr\u00e1s tov\u00e1bbra is \u00e9rv\u00e9nyesnek sz\u00e1m\u00edtson. Hasonl\u00f3 m\u00f3don m\u00f3dos\u00edthatja az al\u00e1\u00edr\u00e1ssal rendelkez\u0151 titkos\u00edtott \u00fczeneteket, amelyeket kib\u0151v\u00edtett adatokat tartalmaz\u00f3 m\u00f3dos\u00edt\u00e1sokkal bontanak ki.
\n
Forr\u00e1s: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0435 OpenPGP.js \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2025-47934), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a\u0443 \u043e\u0442\u043f\u0440\u0430\u0432\u0438\u0442\u044c \u043c\u043e\u0434\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0435 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0435, \u043a\u043e\u0442\u043e\u0440\u043e\u0435 \u0431\u0443\u0434\u0435\u0442 \u0432\u043e\u0441\u043f\u0440\u0438\u043d\u044f\u0442\u043e \u043f\u043e\u043b\u0443\u0447\u0430\u0442\u0435\u043b\u0435\u043c \u043a\u0430\u043a \u0432\u0435\u0440\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0435 (\u0444\u0443\u043d\u043a\u0446\u0438\u0438 openpgp.verify \u0438 openpgp.decrypt \u0432\u0435\u0440\u043d\u0443\u0442 \u043f\u0440\u0438\u0437\u043d\u0430\u043a \u0443\u0441\u043f\u0435\u0448\u043d\u043e\u0439 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0446\u0438\u0444\u0440\u043e\u0432\u043e\u0439 \u043f\u043e\u0434\u043f\u0438\u0441\u0438, \u043d\u0435\u0441\u043c\u043e\u0442\u0440\u044f \u043d\u0430 \u0442\u043e, \u0447\u0442\u043e \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u043c\u043e\u0435 \u0437\u0430\u043c\u0435\u043d\u0435\u043d\u043e \u0438 \u043e\u0442\u043b\u0438\u0447\u0430\u0435\u0442\u0441\u044f \u043e\u0442 \u0434\u0430\u043d\u043d\u044b\u0445, \u0434\u043b\u044f \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u043b\u0430\u0441\u044c \u043f\u043e\u0434\u043f\u0438\u0441\u044c). \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0432 \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0445 OpenPGP.js 5.11.3 \u0438 6.1.1. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0442\u043e\u043b\u044c\u043a\u043e \u0432 \u0432\u0435\u0442\u043a\u0430\u0445 OpenPGP.js […]<\/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-125333","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\udd47Az OpenPGP.js k\u00f6nyvt\u00e1rban tal\u00e1lhat\u00f3 sebezhet\u0151s\u00e9g, amely lehet\u0151v\u00e9 teszi az \u00fczenetek \u00e9rv\u00e9nyes\u00edt\u00e9s\u00e9nek kij\u00e1tsz\u00e1s\u00e1t | 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