{"id":109367,"date":"2023-07-12T21:10:19","date_gmt":"2023-07-12T19:10:19","guid":{"rendered":"https:\/\/prohoster.info\/?p=109367"},"modified":"2023-07-13T09:57:04","modified_gmt":"2023-07-13T07:57:04","slug":"uyazvimosti-v-redis-ghostscript-asterisk-i-parse-server","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/uyazvimosti-v-redis-ghostscript-asterisk-i-parse-server","title":{"rendered":"S\u00e5rbarheder i Redis, Ghostscript, Asterisk og Parse Server","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Nogle nyligt opdagede s\u00e5rbarheder:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2022-24834 \u2014 en s\u00e5rbarhed i databasen Redis, der muligg\u00f8r en buffer-overflow i bibliotekerne cjson og cmsgpack ved udf\u00f8relse af et specifikt formuleret Lua-script. Denne s\u00e5rbarhed kan potentielt f\u00f8re til fjernudf\u00f8relse af kode p\u00e5 <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/da\/server\/dts-newyork\/\"   title=\"serveren\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2763\">serveren<\/a>. Problemet opst\u00e5r fra Redis 2.6 og er l\u00f8st i versionerne 7.0.12, 6.2.13 og 6.0.20. Som en midlertidig beskyttelsesmetode kan man gennem ACL forhindre Redis-brugere i at udf\u00f8re EVAL og EVALSHA kommandoer.\n<li class=\"l\"> CVE-2023-36824 \u2014 en s\u00e5rbarhed i Redis-database, der f\u00f8rer til buffer-overl\u00f8b ved behandling af navne p\u00e5 n\u00f8gler, der sendes via COMMAND GETKEYS eller COMMAND GETKEYSANDFLAGS, samt lister over n\u00f8gler i ACL-regler. Denne s\u00e5rbarhed kan potentielt f\u00f8re til fjernudf\u00f8relse af kode p\u00e5 serveren. Problemet opst\u00e5r kun i 7.0.x-grenen og er l\u00f8st i version 7.0.12.\n<li class=\"l\"> CVE-2022-23537 \u2014 en s\u00e5rbarhed i kommunikationsplatformen Asterisk, der f\u00f8rer til buffer-overflow under parsing <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/da\/server\/dts-prohoster\/\"   title=\"serveren\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3076\">serveren<\/a> specielt formaterede STUN-beskeder, som indeholder en ukendt attribut. Problemet opst\u00e5r ved brug af protokollerne ICE eller WebRTC i Asterisk. S\u00e5rbarheden er blevet rettet i versionerne 16.30.1, 18.18.1, 19.8.1 og 20.3.1.\n<li class=\"l\"> CVE-2023-36664 \u2014 en s\u00e5rbarhed i Ghostscript, et v\u00e6rkt\u00f8jss\u00e6t til behandling, konvertering og generering af dokumenter i PostScript og PDF-formater, som g\u00f8r det muligt at udf\u00f8re vilk\u00e5rlig kode ved \u00e5bning af specifikt formulerede PostScript-dokumenter. Problemet skyldes forkert h\u00e5ndtering af filnavne, der begynder med symbolet \u00ab|\u00bb eller pr\u00e6fikset %pipe%. S\u00e5rbarheden er blevet rettet i Ghostscript-udgivelsen 10.01.2.\n<p>I mange milj\u00f8er kaldes Ghostscript under oprettelsen af miniaturebilleder p\u00e5 skrivebordet eller ved baggrundsindeksering af data. Derfor kan det ofte v\u00e6re tilstr\u00e6kkeligt blot at uploade en fil med et exploit eller se kataloget med det i Nautilus. Et angreb p\u00e5 serversystemer kan organiseres gennem billedbehandlere baseret p\u00e5 ImageMagick og GraphicsMagick-pakker, som kalder Ghostscript, n\u00e5r JPEG- eller PNG-filer sendes, hvor koden i stedet for billedet er PostScript (denne fil vil blive behandlet i Ghostscript, da MIME-typen genkendes ud fra indholdet, ikke blot filtypen).    <\/p>\n<li class=\"l\"> CVE-2023-36475 \u2014 en s\u00e5rbarhed i Parse Server, backend til Node.js, der arbejder sammen med web-frameworket Express, som tillader fjernudf\u00f8relse af ens egen kode p\u00e5 serveren. S\u00e5rbarheden muligg\u00f8r brug af metode til prototype-forurening i JavaScript-objekter for at udf\u00f8re ens egen kode via BSON-parseren MongoDB. S\u00e5rbarheden er tildelt en faregrad p\u00e5 9.8 ud af 10. Problemet er blevet rettet i opdateringerne parse-server 5.5.2 og 6.2.1.      <\/ul>\n<p>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=59430\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043d\u0435\u0434\u0430\u0432\u043d\u043e \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043d\u044b\u0445 \u043e\u043f\u0430\u0441\u043d\u044b\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439: CVE-2022-24834 &#8212; \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 \u0421\u0423\u0411\u0414 Redis, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0430\u0445 cjson \u0438 cmsgpack \u043f\u0440\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0438 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0441\u0446\u0435\u043d\u0430\u0440\u0438\u044f \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Lua. \u041f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u043c\u0443 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044e \u043a\u043e\u0434\u0430 \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0435. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 Redis 2.6 \u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0432 \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0445 7.0.12, 6.2.13 \u0438 6.0.20. \u0412 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u043e\u0431\u0445\u043e\u0434\u043d\u043e\u0433\u043e [&hellip;]<\/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-109367","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - 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