{"id":33301,"date":"2019-10-31T21:51:51","date_gmt":"2019-10-31T18:51:51","guid":{"rendered":"https:\/\/prohoster.info\/blog\/docker-obrazy-alpine-postavlyalis-s-pustym-parolem-polzovatelya-root\/"},"modified":"2019-10-31T21:51:51","modified_gmt":"2019-10-31T18:51:51","slug":"docker-obrazy-alpine-postavlyalis-s-pustym-parolem-polzovatelya-root","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/docker-obrazy-alpine-postavlyalis-s-pustym-parolem-polzovatelya-root","title":{"rendered":"Le immagini Docker Alpine venivano fornite con una password utente root vuota.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

I ricercatori di sicurezza di Cisco hanno rivelato<\/a><\/noindex> informazioni sulla vulnerabilit\u00e0 (CVE-2019-5021) in build<\/a><\/noindex> distribuzione Alpine per il sistema di isolamento dei container Docker. La questione rilevata \u00e8 che per l'utente root \u00e8 stata impostata di default una password vuota senza bloccare l'accesso diretto come root. Ricordiamo che Alpine \u00e8 utilizzato per creare le immagini ufficiali del progetto Docker (in passato le build ufficiali si basavano su Ubuntu, ma poi sono state trasferiti<\/a><\/noindex> su Alpine).<\/p>\n

Il problema si manifesta a partire dalla versione 3.3 di Alpine Docker ed \u00e8 stato causato da una modifica regressiva inserita nel 2015 (prima della versione 3.3 in \/etc\/shadow era presente la stringa \"root:!::0:::::\", mentre dopo, a causa dell'abbandono del flag \"-d\", \u00e8 stata inserita la stringa \"root:::0:::::\"). Il problema \u00e8 stato inizialmente identificato e \u00e8 stata corretta<\/a><\/noindex> a novembre 2015, ma a dicembre \u00e8 stato nuovamente \u00e8 emersa<\/a><\/noindex> incluso nei file di costruzione della branch sperimentale, e poi \u00e8 stato trasferito nelle versioni stabili.<\/p>\n

Nelle informazioni sulla vulnerabilit\u00e0 si segnala che il problema si presenta anche nell'ultima branch Alpine Docker 3.9. Gli sviluppatori di Alpine a marzo hanno rilasciato<\/a><\/noindex> la correzione e la vulnerabilit\u00e0 non si manifestano<\/a><\/noindex> a partire dalle versioni 3.9.2, 3.8.4, 3.7.3 e 3.6.5, ma rimane nelle vecchie branch 3.4.x e 3.5.x, il cui supporto \u00e8 gi\u00e0 stato interrotto. Inoltre, gli sviluppatori sostengono che il vettore di attacco \u00e8 fortemente limitato e richiede all'attaccante di avere accesso alla stessa infrastruttura.<\/p>\n

<\/a><\/noindex><\/p>\n

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

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