{"id":119252,"date":"2024-08-09T15:43:07","date_gmt":"2024-08-09T13:43:07","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-postgresql-pozvolyayushhaya-vypolnit-sql-kod-s-pravami-polzovatelya-zapuskayushhego-pg_dump"},"modified":"2024-08-09T15:43:07","modified_gmt":"2024-08-09T13:43:07","slug":"uyazvimost-v-postgresql-pozvolyayushhaya-vypolnit-sql-kod-s-pravami-polzovatelya-zapuskayushhego-pg_dump","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/uyazvimost-v-postgresql-pozvolyayushhaya-vypolnit-sql-kod-s-pravami-polzovatelya-zapuskayushhego-pg_dump","title":{"rendered":"Zranite\u013enos\u0165 v PostgreSQL, ktor\u00e1 umo\u017e\u0148uje vykona\u0165 SQL k\u00f3d s pr\u00e1vami pou\u017e\u00edvate\u013ea, sp\u00fa\u0161\u0165aj\u00faceho pg_dump","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Boli vytvoren\u00e9 opravn\u00e9 aktualiz\u00e1cie pre v\u0161etky podporovan\u00e9 verzie PostgreSQL 16.4, 15.8, 14.13, 13.16, 12.20, v ktor\u00fdch bolo opraven\u00fdch 56 ch\u00fdb identifikovan\u00fdch za posledn\u00e9 tri mesiace. Medzi in\u00fdm, v nov\u00fdch verzi\u00e1ch bola odstr\u00e1nen\u00e1 zranite\u013enos\u0165 (CVE-2024-7348), ozna\u010den\u00e1 ako kritick\u00e1 (\u00farove\u0148 nebezpe\u010dnosti 8.8 z 10). Zranite\u013enos\u0165 je sp\u00f4soben\u00e1 pretekaj\u00facim stavom v utilite pg_dump, ktor\u00fd \u00fato\u010dn\u00edkovi, maj\u00facemu pr\u00e1vo vytv\u00e1ra\u0165 a maza\u0165 trval\u00e9 objekty v DBMS, umo\u017e\u0148uje vykonanie n\u00e1hodn\u00e9ho SQL k\u00f3du s pr\u00e1vami pou\u017e\u00edvate\u013ea, pod ktor\u00fdmi je utilita pg_dump spusten\u00e1 (zvy\u010dajne je pg_dump spusten\u00e1 s pr\u00e1vami superu\u017e\u00edvate\u013ea na z\u00e1lohovanie DBMS). <\/p>\n

Na \u00faspe\u0161n\u00fd \u00fatok je potrebn\u00e9 sledova\u0165 okamih spustenia n\u00e1stroja pg_dump, \u010do sa \u013eahko realizuje prostredn\u00edctvom manipul\u00e1ci\u00ed s otvorenou transakciou. \u00datok spo\u010d\u00edva v nahraden\u00ed sekvencie (sequence) zobrazen\u00edm alebo vonkaj\u0161ou tabu\u013ekou, ktor\u00e9 definuj\u00fa sp\u00fa\u0161\u0165an\u00fd SQL k\u00f3d, v okamihu spustenia pg_dump, ke\u010f s\u00fa u\u017e z\u00edskan\u00e9 inform\u00e1cie o pr\u00edtomnosti sekvencie, ale d\u00e1ta e\u0161te neboli zobrazen\u00e9. Na zablokovanie zranite\u013enosti bola pridan\u00e1 konfigur\u00e1cia «restrict_nonsystem_relation_kind», ktor\u00e1 zakazuje odha\u013eovanie nesyst\u00e9mov\u00fdch poh\u013eadov a pr\u00edstup k vonkaj\u0161\u00edm tabu\u013ek\u00e1m v pg_dump.
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0421\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0434\u043b\u044f \u0432\u0441\u0435\u0445 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u043c\u044b\u0445 \u0432\u0435\u0442\u043e\u043a PostgreSQL 16.4, 15.8, 14.13, 13.16, 12.20, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u043e 56 \u043e\u0448\u0438\u0431\u043e\u043a, \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043d\u044b\u0445 \u0437\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0438\u0435 \u0442\u0440\u0438 \u043c\u0435\u0441\u044f\u0446\u0430. \u0421\u0440\u0435\u0434\u0438 \u043f\u0440\u043e\u0447\u0435\u0433\u043e \u0432 \u043d\u043e\u0432\u044b\u0445 \u0432\u0435\u0440\u0441\u0438\u044f\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2024-7348), \u043f\u043e\u043c\u0435\u0447\u0435\u043d\u043d\u0430\u044f \u043a\u0430\u043a \u043e\u043f\u0430\u0441\u043d\u0430\u044f (\u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 8.8 \u0438\u0437 10). \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435\u043c \u0433\u043e\u043d\u043a\u0438 \u0432 \u0443\u0442\u0438\u043b\u0438\u0442\u0435 pg_dump, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u043c \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0435\u043c\u0443, \u0438\u043c\u0435\u044e\u0449\u0435\u043c\u0443 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u0438 \u0443\u0434\u0430\u043b\u0435\u043d\u0438\u044f \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u044b\u0445 \u043e\u0431\u044a\u0435\u043a\u0442\u043e\u0432 […]<\/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-119252","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\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\udd47Zranite\u013enos\u0165 v PostgreSQL, umo\u017e\u0148uj\u00faca vykonanie SQL k\u00f3du s pr\u00e1vami pou\u017e\u00edvate\u013ea, ktor\u00fd sp\u00fa\u0161\u0165a pg_dump | ProHoster","description":"Boli vytvoren\u00e9 opravn\u00e9 aktualiz\u00e1cie pre v\u0161etky podporovan\u00e9 verzie PostgreSQL 16.4, 15.8, 14.13, 13.16, 12.20, v ktor\u00fdch bolo opraven\u00fdch 56 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