{"id":112852,"date":"2024-01-12T15:10:15","date_gmt":"2024-01-12T13:10:15","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/ataka-na-infrastrukturu-pytorch-komprometiruyushhaya-repozitorij-i-relizy"},"modified":"2026-02-13T23:24:49","modified_gmt":"2026-02-13T21:24:49","slug":"ataka-na-infrastrukturu-pytorch-komprometiruyushhaya-repozitorij-i-relizy","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/ataka-na-infrastrukturu-pytorch-komprometiruyushhaya-repozitorij-i-relizy","title":{"rendered":"Attacco all'infrastruttura PyTorch, compromettendo il repository e le release","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Sono emersi dettagli sull'attacco all'infrastruttura utilizzata per lo sviluppo del framework di machine learning PyTorch, che ha permesso di estrarre chiavi di accesso sufficienti per caricare dati arbitrari nel repository delle release del progetto su GitHub e AWS, oltre a iniettare codice nel ramo principale del repository e aggiungere un backdoor tramite dipendenze. La sostituzione delle release di PyTorch potrebbe essere stata utilizzata per attaccare grandi aziende come Google, Meta, Boeing e Lockheed Martin, che utilizzano PyTorch nei loro progetti. Nell'ambito del programma Bug Bounty, la societ\u00e0 Meta ha pagato 16.250 dollari ai ricercatori per informazioni sulla vulnerabilit\u00e0.    <\/p>\n<p>Il punto centrale dell'attacco \u00e8 la possibilit\u00e0 di eseguire il proprio codice su <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/it\/server\/dts-gdansk\/\"   title=\"server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"4503\">server<\/a> integrazione continua, che eseguono la ricompilazione e l'esecuzione di attivit\u00e0 per testare le nuove modifiche inviate al repository. Il problema riguarda i progetti che utilizzano i propri eseguibili esterni &#171;Self-Hosted Runner&#187; con GitHub Actions. A differenza delle tradizionali GitHub Actions, gli eseguibili Self-Hosted non vengono eseguiti nell'infrastruttura di GitHub, ma sui propri <a href=\"https:\/\/prohoster.info\/it\/vps\/ssd-vps\/\"  data-wpil-monitor-id=\"3232\">server o in macchine virtuali<\/a> supportate dagli sviluppatori.     <\/p>\n<p>L'esecuzione delle attivit\u00e0 di build sui propri server consente di avviare codice in grado di eseguire la scansione della rete interna dell'azienda, cercare nella filesystem locale chiavi di crittografia e token di accesso, analizzare variabili di ambiente con parametri di accesso a archivi esterni o servizi cloud. In assenza della giusta isolamento dell'ambiente di build, i dati sensibili trovati possono essere inviati all'esterno da un attaccante, ad esempio, tramite chiamate a API esterne. Per determinare l'utilizzo dei progetti &#171;Self-Hosted Runner&#187; si pu\u00f2 utilizzare lo strumento Gato, che analizza i file di workflow pubblici e i log di esecuzione delle attivit\u00e0 CI.       <\/p>\n<p>In PyTorch e in molti altri progetti che utilizzano &#171;Self-Hosted Runner&#187;, l'esecuzione delle attivit\u00e0 di build \u00e8 consentita solo agli sviluppatori, le cui modifiche sono state precedentemente sottoposte a revisione e incluse nella base di codice del progetto. Avere lo stato di &#171;contributor&#187; utilizzando le impostazioni predefinite nel repository consente di avviare gli eseguibili GitHub Actions quando si inviano richieste di pull e, di conseguenza, di eseguire il proprio codice in qualsiasi ambiente GitHub Actions Runner associato al repository o all'organizzazione che gestisce il progetto.      <\/p>\n<p>L'associazione allo status di \u00abcontributor\u00bb si \u00e8 rivelata facile da eludere: \u00e8 bastato inviare una modifica insignificante e attendere che venisse accettata nella base di codice, dopo di che il sviluppatore otteneva automaticamente lo status di partecipante attivo, i cui pull request potevano essere testati nell'infrastruttura CI senza una verifica separata. Per ottenere lo status di sviluppatore attivo, durante l'esperimento sono state utilizzate modifiche cosmetiche minori, legate alla correzione di errori nel documentation. Per accedere al repository e allo storage delle release di PyTorch durante l'attacco tramite l'esecuzione di codice in \u00abSelf-Hosted Runner\u00bb \u00e8 stato intercettato il token GitHub, utilizzato per accedere al repository dai processi di build, insieme alle chiavi AWS, coinvolte nel salvataggio dei risultati della build.      <\/p>\n<p>Il problema non \u00e8 specifico di PyTorch e riguarda molti altri grandi progetti che utilizzano le impostazioni predefinite per \u00abSelf-Hosted Runner\u00bb in GitHub Actions. Ad esempio, si sono verificati attacchi simili per inserire backdoor in alcuni grandi wallet criptovalutari e progetti blockchain con una capitalizzazione di miliardi, modifiche alle release di Microsoft Deepspeed e TensorFlow, compromissione di una delle applicazioni della compagnia CloudFlare e l'esecuzione di codice su computer nella rete Microsoft. I dettagli di questi incidenti non sono ancora stati resi pubblici. Nell'ambito dei programmi Bug Bounty, i ricercatori hanno inviato pi\u00f9 di 20 segnalazioni per ottenere ricompense per un totale di diverse centinaia di migliaia di dollari.<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=60424\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0420\u0430\u0441\u043a\u0440\u044b\u0442\u044b \u0434\u0435\u0442\u0430\u043b\u0438 \u0430\u0442\u0430\u043a\u0438 \u043d\u0430 \u0438\u043d\u0444\u0440\u0430\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0443, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u0443\u044e \u043f\u0440\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u0444\u0440\u0435\u0439\u043c\u0432\u043e\u0440\u043a\u0430 \u043c\u0430\u0448\u0438\u043d\u043d\u043e\u0433\u043e \u043e\u0431\u0443\u0447\u0435\u043d\u0438\u044f PyTorch, \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0432\u0448\u0443\u044e \u0438\u0437\u0432\u043b\u0435\u0447\u044c \u043a\u043b\u044e\u0447\u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u0430, \u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u044b\u0435 \u0434\u043b\u044f \u0440\u0430\u0437\u043c\u0435\u0449\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u0438 \u0441 \u0440\u0435\u043b\u0438\u0437\u0430\u043c\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u0432 GitHub \u0438 AWS, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0434\u043b\u044f \u043f\u043e\u0434\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438 \u043a\u043e\u0434\u0430 \u0432 \u043e\u0441\u043d\u043e\u0432\u043d\u0443\u044e \u0432\u0435\u0442\u043a\u0443 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u044f \u0438 \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0431\u044d\u043a\u0434\u043e\u0440\u0430 \u0447\u0435\u0440\u0435\u0437 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438. \u041f\u043e\u0434\u043c\u0435\u043d\u0430 \u0440\u0435\u043b\u0438\u0437\u043e\u0432 PyTorch \u043c\u043e\u0433\u043b\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u0434\u043b\u044f \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043b\u0435\u043d\u0438\u044f \u0430\u0442\u0430\u043a\u0438 \u043d\u0430 \u043a\u0440\u0443\u043f\u043d\u044b\u0435 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438, [&hellip;]<\/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-112852","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0420\u0430\u0441\u043a\u0440\u044b\u0442\u044b \u0434\u0435\u0442\u0430\u043b\u0438 \u0430\u0442\u0430\u043a\u0438 \u043d\u0430 \u0438\u043d\u0444\u0440\u0430\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0443, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u0443\u044e \u043f\u0440\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u0444\u0440\u0435\u0439\u043c\u0432\u043e\u0440\u043a\u0430 \u043c\u0430\u0448\u0438\u043d\u043d\u043e\u0433\u043e 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