{"id":104759,"date":"2022-08-02T21:36:50","date_gmt":"2022-08-02T19:36:50","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-rsync-pozvolyayushhaya-perezapisat-fajly-na-storone-klienta"},"modified":"2022-08-02T21:36:50","modified_gmt":"2022-08-02T19:36:50","slug":"uyazvimost-v-rsync-pozvolyayushhaya-perezapisat-fajly-na-storone-klienta","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/uyazvimost-v-rsync-pozvolyayushhaya-perezapisat-fajly-na-storone-klienta","title":{"rendered":"Vulnerabilitate \u00een Rsync, care permite suprascrierea fi\u0219ierelor pe partea clientului","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\u00cen rsync, utilitarul pentru sincronizarea fi\u0219ierelor \u0219i backup, a fost identificat\u0103 o vulnerabilitate (CVE-2022-29154) care permite, atunci c\u00e2nd se acceseaz\u0103 un server rsync controlat de un atacator, s\u0103 scrie sau s\u0103 suprascrie fi\u0219iere arbitrare \u00een directorul \u021bint\u0103 de pe partea utilizatorului. Atacul poate fi, de asemenea, realizat prin intermediul unui atac de tip MITM asupra traficului \u00een tranzit \u00eentre client \u0219i serverul legitim. Problema a fost remediat\u0103 \u00een versiunea de test Rsync 3.2.5pre1. <\/p>\n

Vulnerabilitatea aminte\u0219te de problemele anterioare din SCP \u0219i este cauzat\u0103 \u0219i de faptul c\u0103 serverul decide loca\u021bia fi\u0219ierului scris, iar clientul nu verific\u0103 corespunz\u0103tor ceea ce furnizeaz\u0103 serverul cu ceea ce a fost solicitat, ceea ce permite server<\/a> scrierea fi\u0219ierelor care nu au fost solicitante ini\u021bial de c\u0103tre client. De exemplu, \u00een cazul \u00een care un utilizator copiaz\u0103 fi\u0219iere \u00een directorul s\u0103u acas\u0103, serverul<\/a> acesta poate returna fi\u0219iere cu numele .bash_aliases sau .ssh\/authorized_keys \u00een locul fi\u0219ierelor solicitate, iar acestea vor fi salvate \u00een directorul personal al utilizatorului.
\n
Sursa: opennet.ro<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 rsync, \u0443\u0442\u0438\u043b\u0438\u0442\u0435 \u0434\u043b\u044f \u0441\u0438\u043d\u0445\u0440\u043e\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0444\u0430\u0439\u043b\u043e\u0432 \u0438 \u0440\u0435\u0437\u0435\u0440\u0432\u043d\u043e\u0433\u043e \u043a\u043e\u043f\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f, \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2022-29154), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043f\u0440\u0438 \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u0438 \u043a rsync-\u0441\u0435\u0440\u0432\u0435\u0440\u0443, \u043f\u043e\u0434\u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044c\u043d\u043e\u043c\u0443 \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a\u0443, \u0437\u0430\u043f\u0438\u0441\u0430\u0442\u044c \u0438\u043b\u0438 \u043f\u0435\u0440\u0435\u0437\u0430\u043f\u0438\u0441\u0430\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0435 \u0444\u0430\u0439\u043b\u044b \u0432 \u0446\u0435\u043b\u0435\u0432\u043e\u043c \u043a\u0430\u0442\u0430\u043b\u043e\u0433\u0435 \u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u0435 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f. \u041f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u0430\u0442\u0430\u043a\u0430 \u0442\u0430\u043a\u0436\u0435 \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u0441\u043e\u0432\u0435\u0440\u0448\u0435\u043d\u0430 \u0432 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0435 \u0432\u043c\u0435\u0448\u0430\u0442\u0435\u043b\u044c\u0441\u0442\u0432\u0430 (MITM) \u0432 \u0442\u0440\u0430\u043d\u0437\u0438\u0442\u043d\u044b\u0439 \u0442\u0440\u0430\u0444\u0438\u043a \u043c\u0435\u0436\u0434\u0443 \u043a\u043b\u0438\u0435\u043d\u0442\u043e\u043c \u0438 \u043b\u0435\u0433\u0438\u0442\u0438\u043c\u043d\u044b\u043c \u0441\u0435\u0440\u0432\u0435\u0440\u043e\u043c. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0432 \u0442\u0435\u0441\u0442\u043e\u0432\u043e\u043c \u0432\u044b\u043f\u0443\u0441\u043a\u0435 Rsync 3.2.5pre1. […]<\/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-104759","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\udd47Vulnerabilitate \u00een Rsync care permite suprascrierea fi\u0219ierelor pe partea clientului | ProHoster","description":"\u00cen rsync, utilitarul pentru sincronizarea fi\u0219ierelor \u0219i backup, a fost identificat\u0103 o vulnerabilitate (CVE-2022-29154) care permite, atunci c\u00e2nd se acceseaz\u0103 un server rsync controlat de un atacator, s\u0103 scrie sau s\u0103 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