{"id":38921,"date":"2019-10-31T22:26:45","date_gmt":"2019-10-31T19:26:45","guid":{"rendered":"https:\/\/prohoster.info\/blog\/uyazvimost-v-sudo-pozvolyaet-vypolnyat-komandy-s-pravami-superpolzovatelya-na-ustrojstvah-s-linux\/"},"modified":"2019-10-31T22:26:45","modified_gmt":"2019-10-31T19:26:45","slug":"uyazvimost-v-sudo-pozvolyaet-vypolnyat-komandy-s-pravami-superpolzovatelya-na-ustrojstvah-s-linux","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/uyazvimost-v-sudo-pozvolyaet-vypolnyat-komandy-s-pravami-superpolzovatelya-na-ustrojstvah-s-linux","title":{"rendered":"O vulnerabilitate \u00een Sudo permite executarea comenzilor cu drepturi de superutilizator pe dispozitivele cu Linux","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A fost descoperit\u0103 o vulnerabilitate \u00een comanda Sudo (super user do) pentru Linux. Exploatarea acestei vulnerabilit\u0103\u021bi permite utilizatorilor sau programelor f\u0103r\u0103 privilegii s\u0103 execute comenzi cu drepturi de superuser. Se men\u021bioneaz\u0103 c\u0103 vulnerabilitatea afecteaz\u0103 sistemele cu configura\u021bii neobi\u0219nuite \u0219i nu se refer\u0103 la majoritatea serverelor care func\u021bioneaz\u0103 cu Linux.<\/p>\n

\"O<\/p>\n

Vulnerabilitatea apare \u00een cazurile \u00een care se folosesc configura\u021bii Sudo care permit executarea comenzilor \u00een numele altor utilizatori. De asemenea, Sudo poate fi configurat \u00eentr-un mod special, astfel \u00eenc\u00e2t s\u0103 se poat\u0103 lansa comenzi \u00een numele altor utilizatori, cu excep\u021bia superuserului. Pentru aceasta, este necesar s\u0103 se fac\u0103 ajust\u0103ri corespunz\u0103toare \u00een fi\u0219ierul de configurare.<\/p>\n

Esentialul problemei const\u0103 \u00een modul \u00een care Sudo proceseaz\u0103 identificatorii de utilizator. Dac\u0103 introduce\u021bi \u00een linia de comand\u0103 identificatorul de utilizator -1 sau echivalentul s\u0103u 4294967295, comanda lansat\u0103 poate fi executat\u0103 cu drepturi de superuser. Deoarece ace\u0219ti identificatori de utilizator nu figureaz\u0103 \u00een baza de date a parolelor, nu va fi necesar\u0103 introducerea parolei pentru a executa comanda.<\/p>\n

Pentru a reduce probabilitatea de a \u00eent\u00e2mpina probleme legate de vulnerabilitatea men\u021bionat\u0103, utilizatorii sunt sf\u0103tui\u021bi s\u0103 actualizeze c\u00e2t mai cur\u00e2nd posibil Sudo la versiunea 1.8.28 sau una mai recent\u0103. Mesajul men\u021bioneaz\u0103 c\u0103 \u00een noua versiune Sudo, parametrul -1 nu mai este folosit ca identificator de utilizator. Aceasta \u00eenseamn\u0103 c\u0103 atacatorii nu vor putea profita de aceast\u0103 vulnerabilitate.  <\/p>\n

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Sursa: 3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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[…]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":29198,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-38921","post","type-post","status-publish","format-standard","has-post-thumbnail","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\udd47Vulnerabilitatea din Sudo permite executarea comenzilor cu drepturi de superuser pe dispozitive cu Linux | ProHoster","description":"A fost descoperit\u0103 o vulnerabilitate \u00een comanda Sudo (super user do) pentru 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