{"id":111788,"date":"2023-11-27T15:10:15","date_gmt":"2023-11-27T13:10:15","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimosti-v-perl-owncloud-gstreamer-i-zephyr-rtos"},"modified":"2023-11-27T15:10:15","modified_gmt":"2023-11-27T13:10:15","slug":"uyazvimosti-v-perl-owncloud-gstreamer-i-zephyr-rtos","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/uyazvimosti-v-perl-owncloud-gstreamer-i-zephyr-rtos","title":{"rendered":"Zranitelnosti v Perl, ownCloud, GStreamer a Zephyr RTOS","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>N\u011bkolik ned\u00e1vno zji\u0161t\u011bn\u00fdch zranitelnost\u00ed:  <\/p>\n<ul>\n<li class=\"l\"> V opravn\u00e9 verzi Perl 5.38.1 byla odstran\u011bna zranitelnost (CVE-2023-47038), kter\u00e1 m\u016f\u017ee v\u00e9st k z\u00e1pisu jednoho bajtu za hranici p\u0159id\u011blen\u00e9ho bufferu p\u0159i zpracov\u00e1n\u00ed zkompilovan\u00fdch regul\u00e1rn\u00edch v\u00fdraz\u016f s nespr\u00e1vn\u011b znovu definovan\u00fdm vnit\u0159n\u00edm Unicode vlastnost\u00ed, jeho\u017e n\u00e1zev za\u010d\u00edn\u00e1 na &#171;utf8::perl&#187;. Probl\u00e9m se objevuje od v\u011btve Perl 5.30.\n<p>Krom\u011b toho byla v Perl 5.38.1 odstran\u011bna zranitelnost specifick\u00e1 pro platformu Windows (CVE-2023-47039), kter\u00e1 umo\u017e\u0148uje vykon\u00e1n\u00ed vlastn\u00edho k\u00f3du p\u0159i spu\u0161t\u011bn\u00ed skript\u016f, pokud je mo\u017en\u00e9 um\u00edstit v aktu\u00e1ln\u00edm adres\u00e1\u0159i soubor cmd.exe (kv\u016fli nedostatku \u010di\u0161t\u011bn\u00ed cest pro vyhled\u00e1v\u00e1n\u00ed spustiteln\u00fdch soubor\u016f Perl se nejprve pokou\u0161\u00ed spustit cmd.exe v aktu\u00e1ln\u00edm adres\u00e1\u0159i). Nap\u0159\u00edklad \u00fato\u010dn\u00edk m\u016f\u017ee um\u00edstit sv\u016fj cmd.exe do adres\u00e1\u0159e C:&#092;ProgramData a zv\u00fd\u0161it sv\u00e9 opr\u00e1vn\u011bn\u00ed, pokud spr\u00e1vce spust\u00ed Perl skript z tohoto adres\u00e1\u0159e.    <\/p>\n<li class=\"l\"> V cloudov\u00e9 platform\u011b ownCloud, kter\u00e1 se od projektu Nextcloud odd\u011blila v roce 2016, byla zji\u0161t\u011bna zranitelnost (CVE-2023-49103), kter\u00e1 se t\u00fdk\u00e1 aplikace graphapi a umo\u017e\u0148uje ur\u010dit obsah prom\u011bnn\u00fdch prost\u0159ed\u00ed, kter\u00e9 mohou obsahovat heslo administr\u00e1tora, licen\u010dn\u00ed kl\u00ed\u010d a p\u0159ihla\u0161ovac\u00ed \u00fadaje pro p\u0159ipojen\u00ed k po\u0161t\u011b. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/cs\/server\/dts-shicago\/\"   title=\"serveru\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2915\">serveru<\/a>Probl\u00e9m je zp\u016fsoben pou\u017eit\u00edm t\u0159et\u00ed strany v graphapi, kter\u00e1 mimo jin\u00e9 poskytuje zpracovatel GetPhpInfo.php, volaj\u00edc\u00ed funkci phpinfo(), jej\u00ed\u017e v\u00fdstup zahrnuje prom\u011bnn\u00e9 prost\u0159ed\u00ed.\n<li class=\"l\"> V multimedi\u00e1ln\u00edm frameworku GStreamer byly identifikov\u00e1ny dv\u011b zranitelnosti: CVE-2023-44446 \u2014 pokus o p\u0159\u00edstup k pam\u011bti po jej\u00edm uvoln\u011bn\u00ed (Use-After-Free) v k\u00f3du pro anal\u00fdzu soubor\u016f MXF; CVE-2023-44429 \u2014 p\u0159ete\u010den\u00ed bufferu v k\u00f3du pro anal\u00fdzu form\u00e1tu AV1. Prvn\u00ed probl\u00e9m je zp\u016fsoben nedostatkem kontroly objektu p\u0159ed prov\u00e1d\u011bn\u00edm operac\u00ed s n\u00edm, a druh\u00fd nedostatkem kontroly velikosti dat p\u0159ed kop\u00edrov\u00e1n\u00edm do pevn\u00e9ho bufferu. Zranitelnosti mohou v\u00e9st k vykon\u00e1n\u00ed k\u00f3du \u00fato\u010dn\u00edka p\u0159i pokusu o zpracov\u00e1n\u00ed speci\u00e1ln\u011b vytvo\u0159en\u00fdch soubor\u016f MXF a multimedi\u00e1ln\u00edch dat ve form\u00e1tu AV1. Uv\u00e1d\u00ed se, \u017ee vektory \u00fatoku z\u00e1vis\u00ed na implementaci napaden\u00e9 aplikace. Probl\u00e9m\u016fm byl p\u0159i\u0159azen stupe\u0148 nebezpe\u010d\u00ed 8.8 z 10. Zranitelnosti byly odstran\u011bny ve verzi GStreamer 1.22.7.\n<li class=\"l\"> V re\u00e1ln\u00e9m \u010dase opera\u010dn\u00ed syst\u00e9m Zephyr RTOS bylo zji\u0161t\u011bno 25 zranitelnost\u00ed, z nich\u017e v\u011bt\u0161ina m\u016f\u017ee potenci\u00e1ln\u011b v\u00e9st k proveden\u00ed k\u00f3du \u00fato\u010dn\u00edka. Zranitelnosti jsou zp\u016fsobeny p\u0159ete\u010den\u00edm buffer\u016f v WiFi shellu, Bluetooth stacku, ovlada\u010di IPM, USB stacku, ovlada\u010di IEEE 802.15.4, subsyst\u00e9mu Mgmt, souborov\u00e9m syst\u00e9mu, ovlada\u010di eS-WiFi a subsyst\u00e9mu CANbus. V\u011bt\u0161ina zranitelnost\u00ed byla opravena ve verzi Zephyr 3.5.0, ale jeden probl\u00e9m (CVE-2023-4261) z\u016fst\u00e1v\u00e1 neopraven\u00fd (podrobnosti o t\u00e9to zranitelnosti nejsou zve\u0159ej\u0148ov\u00e1ny, dokud nen\u00ed k dispozici oprava).    <\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=60185\">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 \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u043d\u044b\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439: \u0412 \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0435\u043c \u0432\u044b\u043f\u0443\u0441\u043a\u0435 Perl 5.38.1 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2023-47038), \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u0437\u0430\u043f\u0438\u0441\u0438 \u043e\u0434\u043d\u043e\u0433\u043e \u0431\u0430\u0439\u0442\u0430 \u0437\u0430 \u043f\u0440\u0435\u0434\u0435\u043b\u044b \u0432\u044b\u0434\u0435\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0431\u0443\u0444\u0435\u0440\u0430 \u043f\u0440\u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u0441\u043a\u043e\u043c\u043f\u0438\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u0440\u0435\u0433\u0443\u043b\u044f\u0440\u043d\u044b\u0445 \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u0439 \u0441 \u043d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u043e \u043f\u043e\u0432\u0442\u043e\u0440\u043d\u043e \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u044b\u043c \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0438\u043c Unicode-\u0441\u0432\u043e\u0439\u0441\u0442\u0432\u043e\u043c \u0441 \u0438\u043c\u0435\u043d\u0435\u043c, \u043d\u0430\u0447\u0438\u043d\u0430\u044e\u0449\u0438\u043c\u0441\u044f \u043d\u0430 &#171;utf8::perl&#187;. \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 \u0432\u0435\u0442\u043a\u0438 Perl 5.30. \u041a\u0440\u043e\u043c\u0435 \u0442\u043e\u0433\u043e, \u0432 Perl 5.38.1 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u0447\u043d\u0430\u044f \u0434\u043b\u044f \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b [&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-111788","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043d\u0435\u0434\u0430\u0432\u043d\u043e \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u043d\u044b\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439: \u0412 \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0435\u043c \u0432\u044b\u043f\u0443\u0441\u043a\u0435 Perl 5.38.1 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 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