{"id":37676,"date":"2019-10-31T22:18:59","date_gmt":"2019-10-31T19:18:59","guid":{"rendered":"https:\/\/prohoster.info\/blog\/ocherednye-4-uyazvimosti-v-ghostscript\/"},"modified":"2019-10-31T22:18:59","modified_gmt":"2019-10-31T19:18:59","slug":"ocherednye-4-uyazvimosti-v-ghostscript","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/ocherednye-4-uyazvimosti-v-ghostscript","title":{"rendered":"\u00cenc\u0103 4 vulnerabilit\u0103\u021bi \u00een Ghostscript","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Dup\u0103 dou\u0103 s\u0103pt\u0103m\u00e2ni de la descoperire<\/a><\/noindex> a problemei critice anterioare \u00een Ghostscript<\/a><\/noindex> au fost identificate<\/a><\/noindex> \u00eenc\u0103 4 vulnerabilit\u0103\u021bi similare (CVE-2019-14811, CVE-2019-14812, CVE-2019-14813, CVE-2019-14817), care permit ocolirea modului de izolare \u201e-dSAFER\u201d prin crearea unui link c\u0103tre «.forceput». Atacatorul poate accesa con\u021binutul FS \u0219i poate executa cod arbitrar \u00een sistem (de exemplu, prin ad\u0103ugarea de comenzi \u00een ~\\\/ .bashrc sau ~\\\/ .profile) atunci c\u00e2nd c\u0103 procesarea documentelor special concepute. Corectura este disponibil\u0103 sub form\u0103 de patch-uri.1<\/a><\/noindex>, 2<\/a><\/noindex>). Monitorizarea apari\u021biei actualiz\u0103rilor pachetelor \u00een distribu\u021bii poate fi urm\u0103rit\u0103 pe aceste pagini: Debian<\/a><\/noindex>, Fedora<\/a><\/noindex>, Ubuntu<\/a><\/noindex>, SUSE\/openSUSE<\/a><\/noindex>, RHEL<\/a><\/noindex>, Arch<\/a><\/noindex>, ROSA<\/a><\/noindex>, FreeBSD<\/a><\/noindex>. <\/p>\n

Reamintim c\u0103 vulnerabilit\u0103\u021bile din Ghostscript reprezint\u0103 un pericol crescut, deoarece acest pachet este utilizat \u00een multe aplica\u021bii populare pentru procesarea formatelor PostScript \u0219i PDF. De exemplu, Ghostscript este apelat \u00een procesul de creare a miniaturilor pe desktop, \u00een indexarea \u00een fundal a datelor \u0219i \u00een conversia imaginilor. \u00cen multe cazuri, pentru un atac de succes, este suficient s\u0103 se \u00eencarce un fi\u0219ier cu un exploit sau s\u0103 se vizualizeze un director care con\u021bine acesta \u00een Nautilus. Vulnerabilit\u0103\u021bile din Ghostscript pot fi, de asemenea, exploatate prin intermediul handler-elor de imagini bazate pe pachetele ImageMagick \u0219i GraphicsMagick, prin transmiterea unui fi\u0219ier JPEG sau PNG, \u00een care, \u00een loc de imagine, se afl\u0103 cod PostScript (acest fi\u0219ier va fi procesat \u00een Ghostscript, deoarece tipul MIME este recunoscut \u00een func\u021bie de con\u021binut, nu baz\u00e2ndu-se pe extensie).<\/p>\n

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

Sursa: opennet.ro<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0421\u043f\u0443\u0441\u0442\u044f \u0434\u0432\u0435 \u043d\u0435\u0434\u0435\u043b\u0438 \u0441 \u043c\u043e\u043c\u0435\u043d\u0442\u0430 \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0448\u043b\u043e\u0439 \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u0432 Ghostscript \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u044b \u0435\u0449\u0451 4 \u043f\u043e\u0445\u043e\u0436\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 (CVE-2019-14811, CVE-2019-14812, CVE-2019-14813, CVE-2019-14817), \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u0447\u0435\u0440\u0435\u0437 \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u0435 \u0441\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 «.forceput» \u043e\u0431\u043e\u0439\u0442\u0438 \u0440\u0435\u0436\u0438\u043c \u0438\u0437\u043e\u043b\u044f\u0446\u0438\u0438 «-dSAFER». 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[…]<\/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-37676","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\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\u00cenc\u0103 4 vulnerabilit\u0103\u021bi \u00een Ghostscript | ProHoster","description":"Dup\u0103 dou\u0103 s\u0103pt\u0103m\u00e2ni de la descoperirea problemei critice anterioare 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