{"id":99307,"date":"2021-03-02T16:23:36","date_gmt":"2021-03-02T14:23:36","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/opasnye-uyazvimosti-v-sisteme-upravleniya-konfiguracziej-saltstack"},"modified":"2021-03-02T16:23:36","modified_gmt":"2021-03-02T14:23:36","slug":"opasnye-uyazvimosti-v-sisteme-upravleniya-konfiguracziej-saltstack","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/opasnye-uyazvimosti-v-sisteme-upravleniya-konfiguracziej-saltstack","title":{"rendered":"Vulnerabilit\u0103\u021bi periculoase \u00een sistemul de gestionare a configura\u021biei SaltStack","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>\u00cen noile versiuni ale sistemului de gestionare centralizat\u0103 a configur\u0103rilor SaltStack 3002.5, 3001.6 \u0219i 3000.8 a fost remediat\u0103 o vulnerabilitate (CVE-2020-28243) care permite unui utilizator local f\u0103r\u0103 privilegii s\u0103 \u00ee\u0219i creasc\u0103 privilegiile \u00een sistem. Problema a fost cauzat\u0103 de o eroare \u00een handler-ul salt-minion, folosit pentru a primi comenzi de la serverul central. Vulnerabilitatea a fost descoperit\u0103 \u00een noiembrie, dar a fost corectat\u0103 abia acum.    <\/p>\n<p>Atunci c\u00e2nd se efectueaz\u0103 opera\u021biunea \u201erestartcheck\u201d, exist\u0103 posibilitatea de a introduce comenzi arbitrare prin manipularea numelui procesului. \u00cen special, verificarea existen\u021bei pachetului s-a realizat prin rularea managerului de pachete cu un argument ob\u021binut pe baza numelui procesului. Managerul de pachete este lansat prin apelarea func\u021biei popen \u00een modul de pornire shell, dar f\u0103r\u0103 a sc\u0103pa caracterelor speciale. Prin modificarea numelui procesului \u0219i utiliz\u00e2nd caractere precum \u201e;\u201d \u0219i \u201e|\u201d, se poate organiza executarea propriei coduri.    <\/p>\n<p>Pe l\u00e2ng\u0103 problema men\u021bionat\u0103, \u00een SaltStack 3002.5 au fost remediat\u0103 \u00eenc\u0103 9 vulnerabilit\u0103\u021bi:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2021-25281 \u2014 din cauza lipsei de verificare adecvat\u0103 a autoriza\u021biilor, un atacator de la distan\u021b\u0103 poate lansa orice modul wheel pe serverul master prin apelarea SaltAPI, compromi\u021b\u00e2nd \u00eentreaga infrastructur\u0103.\n<li class=\"l\"> CVE-2021-3197 \u2014 problem\u0103 \u00een modulul SSH pentru minion, care permite executarea de comenzi shell arbitrare prin substituirea argumentului cu setarea \u201eProxyCommand\u201d sau transmiterea ssh_options prin API.\n<li class=\"l\"> CVE-2021-25282 \u2014 acces neautorizat la wheel_async permite, prin apelarea SaltAPI, rescrierea fi\u0219ierului dincolo de directorul de baz\u0103 \u0219i executarea unui cod arbitrar \u00een sistem.\n<li class=\"l\"> CVE-2021-25283 \u2014 dep\u0103\u0219irea directorului de baz\u0103 \u00een handlerul wheel.pillar_roots.write \u00een SaltAPI permite ad\u0103ugarea unui \u0219ablon arbitrar la rendererul jinja.\n<li class=\"l\"> CVE-2021-25284 \u2014 parolele configurate prin webutils erau stocate \u00een clar \u00een jurnalul \/var\/log\/salt\/minion.\n<li class=\"l\"> CVE-2021-3148 \u2014 posibilitatea de substitu\u021bie a comenzii prin SaltAPI apela salt.utils.thin.gen_thin().\n<li class=\"l\"> CVE-2020-35662 \u2014 lipsa verific\u0103rii <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/ro\/ssl-sertifikat\/\"   title=\"SSL\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2289\">SSL<\/a>- certificatului \u00een configura\u021bia implicit\u0103.\n<li class=\"l\"> CVE-2021-3144 \u2014 posibilitatea de a utiliza tokenuri de autentificare eauth dup\u0103 expirarea termenului de valabilitate.\n<li class=\"l\"> CVE-2020-28972 \u2014 \u00een cod nu a fost verificat certificatul SSL\/TLS  <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/ro\/server\/dts-los-angeles\/\"   title=\"server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3696\">server<\/a>, ceea ce a permis realizarea atacurilor MITM.    <\/ul>\n<p>Sursa: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=54685\">opennet.ro<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u043d\u043e\u0432\u044b\u0445 \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0446\u0435\u043d\u0442\u0440\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u0435\u0439 SaltStack 3002.5, 3001.6 \u0438 3000.8 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2020-28243) \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0435\u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u043c\u0443 \u043b\u043e\u043a\u0430\u043b\u044c\u043d\u043e\u043c\u0443 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044e \u0445\u043e\u0441\u0442\u0430 \u043f\u043e\u0432\u044b\u0441\u0438\u0442\u044c \u0441\u0432\u043e\u0438 \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0438 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u043e\u0448\u0438\u0431\u043a\u043e\u0439 \u0432 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0435 salt-minion, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u043c \u0434\u043b\u044f \u043f\u0440\u0438\u0451\u043c\u0430 \u043a\u043e\u043c\u0430\u043d\u0434 \u0441 \u0446\u0435\u043d\u0442\u0440\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0431\u044b\u043b\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0432 \u043d\u043e\u044f\u0431\u0440\u0435, \u043d\u043e \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0430 \u0442\u043e\u043b\u044c\u043a\u043e \u0441\u0435\u0439\u0447\u0430\u0441. \u041f\u0440\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0438 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 &#171;restartcheck&#187; \u0438\u043c\u0435\u0435\u0442\u0441\u044f \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0438\u0442\u044c \u043f\u043e\u0434\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0443 [&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-99307","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u043d\u043e\u0432\u044b\u0445 \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0446\u0435\u043d\u0442\u0440\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u0435\u0439 SaltStack 3002.5, 3001.6 \u0438 3000.8 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 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centralizat al configura\u021biei SaltStack 3002.5, 3001.6 \u0219i 3000.8 a fost remediat\u0103 o vulnerabilitate (CVE-2020-28243) care permite unui utilizator local f\u0103r\u0103 privilegii s\u0103-\u0219i sporeasc\u0103 drepturile.","canonical_url":"https:\/\/prohoster.info\/ro\/blog\/news\/opasnye-uyazvimosti-v-sisteme-upravleniya-konfiguracziej-saltstack","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"ro_RO","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\u041e\u043f\u0430\u0441\u043d\u044b\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432 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