{"id":100078,"date":"2021-05-03T10:22:39","date_gmt":"2021-05-03T08:22:39","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-paketnom-menedzhere-composer-dopuskayushhaya-komprometacziyu-php-repozitoriya-packagist"},"modified":"2021-05-03T10:22:39","modified_gmt":"2021-05-03T08:22:39","slug":"uyazvimost-v-paketnom-menedzhere-composer-dopuskayushhaya-komprometacziyu-php-repozitoriya-packagist","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/uyazvimost-v-paketnom-menedzhere-composer-dopuskayushhaya-komprometacziyu-php-repozitoriya-packagist","title":{"rendered":"Vulnerabilit\u00e0 nel gestore di pacchetti Composer che consente la compromissione del repository PHP Packagist","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Nel gestore delle dipendenze Composer \u00e8 stata trovata una vulnerabilit\u00e0 critica (CVE-2021-29472) che consente di eseguire comandi arbitrari nel sistema durante l'elaborazione di un pacchetto con un valore URL appositamente formattato, definendo un indirizzo per il caricamento dei sorgenti. Il problema si manifesta nei componenti GitDriver, SvnDriver e HgDriver, utilizzati per il funzionamento dei sistemi di gestione del codice sorgente Git, Subversion e Mercurial. La vulnerabilit\u00e0 \u00e8 stata risolta nelle versioni Composer 1.10.22 e 2.0.13. <\/p>\n

Si segnala in particolare che il problema ha principalmente riguardato il repository di pacchetti Packagist utilizzato di default in Composer, che conta 306.000 pacchetti per gli sviluppatori PHP e gestisce oltre 1,4 miliardi di download mensili. Durante l'esperimento \u00e8 stato dimostrato che, in caso di conoscenza della problematica, gli aggressori avrebbero potuto ottenere il controllo sull'infrastruttura di Packagist e intercettare le credenziali degli utenti o reindirizzare il download dei pacchetti su un server esterno, organizzando la consegna di versioni dei pacchetti con modifiche dannose per inserire un backdoor nel processo di installazione delle dipendenze. <\/p>\n

Il rischio per gli utenti finali \u00e8 limitato dal fatto che il contenuto di composer.json \u00e8 solitamente definito dall'utente stesso e i link ai sorgenti vengono forniti quando ci si collega a repository di terze parti, di solito fidati. Il colpo principale ha colpito il repository Packagist.org e il servizio Private Packagist, che chiamano Composer fornendo dati ricevuti dagli utenti. Gli aggressori avrebbero potuto eseguire il proprio codice sui server di Packagist caricando un pacchetto appositamente formattato. <\/p>\n

Il team di Packagist ha risolto la vulnerabilit\u00e0 entro 12 ore dalla ricezione della segnalazione. I ricercatori hanno informato privatamente gli sviluppatori di Packagist il 22 aprile e lo stesso giorno il problema \u00e8 stato risolto. L'aggiornamento pubblico di Composer con la correzione della vulnerabilit\u00e0 \u00e8 stato pubblicato il 27 aprile, e i dettagli sono stati resi noti il 28 aprile. L'audit dei log sui server di Packagist non ha rivelato attivit\u00e0 sospette legate alla vulnerabilit\u00e0. <\/p>\n

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Pubblicando in Packagist un pacchetto di test con un URL simile, i ricercatori hanno confermato che dopo l'inserimento nel loro server \u00e8 arrivata una richiesta HTTP da uno dei server<\/a> Packagist su AWS, contenente un elenco di file nella directory corrente.
\n
Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u043c\u0435\u043d\u0435\u0434\u0436\u0435\u0440\u0435 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0435\u0439 Composer \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2021-29472), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0435 \u043a\u043e\u043c\u0430\u043d\u0434\u044b \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u043f\u0440\u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u043f\u0430\u043a\u0435\u0442\u0430 \u0441\u043e \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u044b\u043c \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435\u043c URL, \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u044f\u044e\u0449\u0438\u043c \u0430\u0434\u0440\u0435\u0441 \u0434\u043b\u044f \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u0438\u0441\u0445\u043e\u0434\u043d\u044b\u0445 \u0442\u0435\u043a\u0441\u0442\u043e\u0432. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0432 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430\u0445 GitDriver, SvnDriver \u0438 HgDriver, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u044b\u0445 \u043f\u0440\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 \u0441\u0438\u0441\u0442\u0435\u043c \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438\u0441\u0445\u043e\u0434\u043d\u044b\u043c\u0438 \u0442\u0435\u043a\u0441\u0442\u0430\u043c\u0438 Git, Subversion \u0438 Mercurial. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0432 \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0445 Composer 1.10.22 \u0438 2.0.13. […]<\/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-100078","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\udd47Vulnerabilit\u00e0 nel gestore di pacchetti Composer, che consente la compromissione del repository PHP Packagist | ProHoster","description":"Nel gestore delle dipendenze Composer \u00e8 stata identificata una vulnerabilit\u00e0 critica (CVE-2021-29472) che consente di eseguire comandi arbitrari nel sistema durante l'elaborazione di un pacchetto con un valore URL appositamente 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