{"id":110482,"date":"2023-10-05T03:11:34","date_gmt":"2023-10-05T01:11:34","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-exim-obnaruzhili-kriticheskie-uyazvimosti-pozvolyashhie-vypolnit-na-servere-proizvolnyj-kod"},"modified":"2023-10-05T03:11:34","modified_gmt":"2023-10-05T01:11:34","slug":"v-exim-obnaruzhili-kriticheskie-uyazvimosti-pozvolyashhie-vypolnit-na-servere-proizvolnyj-kod","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/v-exim-obnaruzhili-kriticheskie-uyazvimosti-pozvolyashhie-vypolnit-na-servere-proizvolnyj-kod","title":{"rendered":"Az Exim alkalmaz\u00e1sban kritikus sebezhet\u0151s\u00e9geket fedeztek fel, amelyek lehet\u0151v\u00e9 teszik tetsz\u0151leges k\u00f3d v\u00e9grehajt\u00e1s\u00e1t a szerveren.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A ZDI (Zero Day Initiative) k\u00f6zz\u00e9tett inform\u00e1ci\u00f3kat h\u00e1rom, az Exim levelez\u00f3szerverben tal\u00e1lt kritikus sebezhet\u0151s\u00e9gr\u0151l, amely lehet\u0151v\u00e9 teszi a k\u00f3d tetsz\u0151leges v\u00e9grehajt\u00e1s\u00e1t a szerver folyamatak\u00e9nt, amely a 25-\u00f6s portot nyitotta meg. A t\u00e1mad\u00e1shoz a szerver hiteles\u00edt\u00e9se nem sz\u00fcks\u00e9ges.<\/p>\n

    <\/p>\n
  1. CVE-2023-42115<\/a> \u2014 lehet\u0151v\u00e9 teszi az adatok \u00edr\u00e1s\u00e1t a dedik\u00e1lt pufferen k\u00edv\u00fcl. A SMTP szolg\u00e1ltat\u00e1s bemeneti ellen\u0151rz\u00e9si hib\u00e1ja okozza.<\/li>\n

    <\/noindex> <\/p>\n

  2. CVE-2023-42116<\/a> \u2013 az okozza, hogy a felhaszn\u00e1l\u00f3t\u00f3l sz\u00e1rmaz\u00f3 adatokat egy fix m\u00e9ret\u0171 pufferbe m\u00e1solj\u00e1k \u00fagy, hogy nem ellen\u0151rzik a sz\u00fcks\u00e9ges m\u00e9retet.<\/li>\n
  3. CVE-2023-42117<\/a> \u2013 szint\u00e9n a 25-\u00f6s SMTP porton a bemeneti adatok ellen\u0151rz\u00e9s\u00e9nek hi\u00e1nya okozza.<\/li>\n<\/ol>\n

    A sebezhet\u0151s\u00e9gek 0-day-k\u00e9nt vannak megjel\u00f6lve, ami azt jelenti, hogy eddig nem jav\u00edtott\u00e1k \u0151ket, b\u00e1r a ZDI szerint az Exim fejleszt\u0151it m\u00e1r r\u00e9gen t\u00e1j\u00e9koztatt\u00e1k a l\u00e9tez\u00e9s\u00fckr\u0151l. Lehets\u00e9ges, hogy a jav\u00edt\u00e1s a 4.97 verzi\u00f3j\u00fa szerveren lesz, de ez nem biztos.<\/p>\n

    Ezeknek a sebezhet\u0151s\u00e9geknek a v\u00e9delmek\u00e9nt jelenleg a 25-\u00f6s porton a SMTP hozz\u00e1f\u00e9r\u00e9s korl\u00e1toz\u00e1sa javasolt.<\/p>\n

    <\/p>\n

    UPD.<\/strong> \u00dagy t\u0171nik, hogy minden nem annyira r\u00e9miszt\u0151. Ezek a sebezhet\u0151s\u00e9gek helyi jelleg\u0171ek. Nem m\u0171k\u00f6dnek, ha a szerver nem haszn\u00e1l NTLM \u00e9s EXTERNAL hiteles\u00edt\u00e9st, nem \u00e1ll proxy m\u00f6g\u00f6tt, nem haszn\u00e1l potenci\u00e1lisan vesz\u00e9lyes DNS-szervereket, \u00e9s nem haszn\u00e1l spf-t az acl-ben. Tov\u00e1bb\u00e1\u2026<\/a><\/p>\n

    <\/noindex><\/p>\n

    Forr\u00e1s: linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

    ZDI (Zero Day Initiative) \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0438 \u0441\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u043e \u0442\u0440\u0435\u0445 \u043d\u0430\u0439\u0434\u0435\u043d\u043d\u044b\u0445 \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044f\u0445 \u0432 \u043f\u043e\u0447\u0442\u043e\u0432\u043e\u043c \u0441\u0435\u0440\u0432\u0435\u0440\u0435 Exim, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0445 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0439 \u043a\u043e\u0434 \u043e\u0442 \u0438\u043c\u0435\u043d\u0438 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0430, \u043e\u0442\u043a\u0440\u044b\u0432\u0448\u0435\u0433\u043e 25\u0439 \u043f\u043e\u0440\u0442. \u0414\u043b\u044f \u043f\u0440\u043e\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u0430\u0442\u0430\u043a\u0438 \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0435 \u043d\u0435 \u0442\u0440\u0435\u0431\u0443\u0435\u0442\u0441\u044f. CVE-2023-42115 \u2014 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0437\u0430\u043f\u0438\u0441\u0438 \u0441\u0432\u043e\u0438\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u0437\u0430 \u0433\u0440\u0430\u043d\u0438\u0446\u0430\u043c\u0438 \u0432\u044b\u0434\u0435\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0431\u0443\u0444\u0435\u0440\u0430.\u00a0\u0412\u044b\u0437\u0432\u0430\u043d\u0430 \u043e\u0448\u0438\u0431\u043a\u043e\u0439 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0432\u0445\u043e\u0434\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 \u0441\u0435\u0440\u0432\u0438\u0441\u0435 SMTP. CVE-2023-42116 \u2013\u00a0\u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u043a\u043e\u043f\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435\u043c […]<\/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-110482","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 Exim kritikus sebezhet\u0151s\u00e9geit fedezt\u00e9k fel, amelyek lehet\u0151v\u00e9 teszik a k\u00f3d tetsz\u0151leges v\u00e9grehajt\u00e1s\u00e1t a szerveren | ProHoster","description":"A ZDI (Zero Day Initiative) k\u00f6zz\u00e9tett inform\u00e1ci\u00f3kat h\u00e1rom, az Exim levelez\u00f3szerverben tal\u00e1lt kritikus sebezhet\u0151s\u00e9gr\u0151l, amely lehet\u0151v\u00e9 teszi a k\u00f3d tetsz\u0151leges v\u00e9grehajt\u00e1s\u00e1t a szerver folyamatak\u00e9nt, amely a 25-\u00f6s portot nyitotta meg.","canonical_url":"https:\/\/prohoster.info\/hu\/blog\/news\/v-exim-obnaruzhili-kriticheskie-uyazvimosti-pozvolyashhie-vypolnit-na-servere-proizvolnyj-kod","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\u0412 Exim \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0438\u043b\u0438 \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0449\u0438\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0435 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0439 \u043a\u043e\u0434 | ProHoster","og:description":"ZDI (Zero Day Initiative) \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0438 \u0441\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u043e \u0442\u0440\u0435\u0445 \u043d\u0430\u0439\u0434\u0435\u043d\u043d\u044b\u0445 \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044f\u0445 \u0432 \u043f\u043e\u0447\u0442\u043e\u0432\u043e\u043c \u0441\u0435\u0440\u0432\u0435\u0440\u0435 Exim, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0445 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0439 \u043a\u043e\u0434 \u043e\u0442 \u0438\u043c\u0435\u043d\u0438 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0430, \u043e\u0442\u043a\u0440\u044b\u0432\u0448\u0435\u0433\u043e 25\u0439 \u043f\u043e\u0440\u0442.","og:url":"https:\/\/prohoster.info\/hu\/blog\/news\/v-exim-obnaruzhili-kriticheskie-uyazvimosti-pozvolyashhie-vypolnit-na-servere-proizvolnyj-kod","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":"2023-10-05T01:11:34+00:00","article:modified_time":"2023-10-05T01:11:34+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts\/110482","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=110482"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts\/110482\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/media?parent=110482"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/categories?post=110482"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/tags?post=110482"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}