{"id":120574,"date":"2024-11-15T01:09:07","date_gmt":"2024-11-14T23:09:08","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/katalog-pypi-vnedril-novuyu-sistemu-proverki-podlinnosti-paketov"},"modified":"2024-11-15T01:09:07","modified_gmt":"2024-11-14T23:09:08","slug":"katalog-pypi-vnedril-novuyu-sistemu-proverki-podlinnosti-paketov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/katalog-pypi-vnedril-novuyu-sistemu-proverki-podlinnosti-paketov","title":{"rendered":"Il catalogo PyPI ha implementato un nuovo sistema di verifica dell'autenticit\u00e0 dei pacchetti.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Gli sviluppatori del repository dei pacchetti Python PyPI (Python Package Index) hanno annunciato l'implementazione del supporto per un meccanismo di attestazione digitale per la verifica dell'autenticit\u00e0 dei pacchetti pubblicati, che sostituisce la verifica attraverso firme PGP. La principale differenza dell'attestazione \u00e8 che la pubblicazione di un pacchetto \u00e8 firmata non dal sviluppatore, ma da una terza parte (un catalogo di pacchetti) dopo aver confermato la veridicit\u00e0 della pubblicazione tramite un provider esterno OpenID Connect (ad esempio, dopo aver verificato che il pacchetto pubblicato corrisponda al relativo repository su GitHub o GitLab).      <\/p>\n<p>Il sistema di attestazione elimina le carenze proprie del meccanismo di verifica tramite firme PGP, precedentemente dichiarato obsoleto su PyPI. Questa soluzione \u00e8 stata adottata a causa di problemi nel verificare l'identit\u00e0 degli sviluppatori con le chiavi PGP pubbliche utilizzate per controllare le firme digitali \u2014 su 1069 chiavi PGP utilizzate dal 2020 per generare firme su PyPI, il 29% delle chiavi pubbliche erano assenti su importanti registri pubblici. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/it\/server\/dts-gdansk\/\"   title=\"server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"4566\">server<\/a> , e il 35% delle chiavi si \u00e8 rivelato impossibile da confermare durante l'audit. Le chiavi PGP confermate coprivano solo il 36% e rappresentavano solo lo 0.3% di tutti i file firmati.       <\/p>\n<p>Nel nuovo sistema, le firme utilizzate per attestare i pacchetti sono generate utilizzando chiavi effimere a vita breve, create sulla base delle autorizzazioni confermate dai provider OpenID Connect. Nel momento in cui vengono generate le chiavi necessarie per creare la firma digitale, lo sviluppatore si identifica attraverso il provider OpenID, che conferma il suo legame con il progetto principale. L'infrastruttura per l'attestazione digitale \u00e8 costruita utilizzando il sistema Sigstore e l'framework in-toto Attestation Framework.    <\/p>\n<p>Tra i vantaggi dell'attestazione c'\u00e8 l'assenza di legame con chiavi PGP permanenti \u2014 la perdita o la compromissione di una chiave privata distrugge la fiducia nelle firme create sulla sua base, mentre con l'attestazione la firma viene generata in relazione a un token che conferma i diritti al momento della pubblicazione del pacchetto e il legame del pacchetto con il repository principale del codice. Ad esempio, durante la pubblicazione di un pacchetto preparato tramite GitHub Action, l'attestazione stabilisce un legame verificabile e confermato tra il file caricato su PyPI, il repository, il processo workflow e l'hash del commit da cui \u00e8 stato generato il pacchetto.     <center><img decoding=\"async\" alt=\"Il catalogo PyPI ha implementato un nuovo sistema di verifica dell&#039;autenticit\u00e0 dei pacchetti.\" src=\"\/wp-content\/uploads\/2024\/11\/2dd01380b44847a51dc2452083466b22.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>      <\/p>\n<p>Per tenere traccia dell'autenticit\u00e0 delle chiavi e identificare possibili compromissioni, il pacchetto generante per i progetti e lo stesso PyPI utilizza un registro pubblico centralizzato. Per garantire l'integrit\u00e0 e la protezione da alterazioni dei dati retroattive, viene impiegata la struttura 'albero di Merkle' (Merkle Tree), in cui ogni ramo verifica tutti i rami e i nodi sottostanti grazie all'hashing ad albero.      <\/p>\n<p>Inoltre, si segnala l'individuazione nel catalogo PyPI del pacchetto malevolo 'fabrice', che tramite type squatting (assegnazione di nomi simili, differendo per singoli caratteri, come exampl invece di example, djangoo invece di django, pyhton invece di python, ecc.) si mascherava da popolare libreria 'fabric', che ha registrato 201 milioni di download (7 milioni negli ultimi mesi). Il pacchetto malevolo era passato inosservato dal 2021 e da allora \u00e8 stato scaricato pi\u00f9 di 37.000 volte.     <\/p>\n<p>Il pacchetto &#171;fabrice&#187; replicava le funzionalit\u00e0 di base della libreria originale e includeva inoltre codice per identificare e inviare a host esterni le chiavi di accesso ad AWS (Amazon Web Services), installare un backdoor ed eseguire determinati script. L'attivazione dei componenti dannosi avveniva su Linux e Windows. Su Linux, i file associati all'attivit\u00e0 malevola venivano caricati nella cartella ~\/.local\/bin\/vscode.<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=62234\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u044f Python-\u043f\u0430\u043a\u0435\u0442\u043e\u0432 PyPI (Python Package Index) \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0438 \u043e \u0432\u043d\u0435\u0434\u0440\u0435\u043d\u0438\u0438 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 \u0446\u0438\u0444\u0440\u043e\u0432\u043e\u0439 \u0430\u0442\u0442\u0435\u0441\u0442\u0430\u0446\u0438\u0438 \u0434\u043b\u044f \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u043f\u043e\u0434\u043b\u0438\u043d\u043d\u043e\u0441\u0442\u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u043f\u0430\u043a\u0435\u0442\u043e\u0432, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u0440\u0438\u0448\u043b\u0430 \u043d\u0430 \u0441\u043c\u0435\u043d\u0443 \u0432\u0435\u0440\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c PGP-\u043f\u043e\u0434\u043f\u0438\u0441\u0435\u0439. \u041a\u043b\u044e\u0447\u0435\u0432\u044b\u043c \u043e\u0442\u043b\u0438\u0447\u0438\u0435\u043c \u0430\u0442\u0442\u0435\u0441\u0442\u0430\u0446\u0438\u0438 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0442\u043e, \u0447\u0442\u043e \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u044f \u043f\u0430\u043a\u0435\u0442\u0430 \u0437\u0430\u0432\u0435\u0440\u044f\u0435\u0442\u0441\u044f \u043d\u0435 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u043c, \u0430 \u0442\u0440\u0435\u0442\u044c\u0438\u043c \u043b\u0438\u0446\u043e\u043c (\u043a\u0430\u0442\u0430\u043b\u043e\u0433\u043e\u043c \u043f\u0430\u043a\u0435\u0442\u043e\u0432) \u043f\u043e\u0441\u043b\u0435 \u043f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0438\u044f \u0434\u043e\u0441\u0442\u043e\u0432\u0435\u0440\u043d\u043e\u0441\u0442\u0438 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438 \u0447\u0435\u0440\u0435\u0437 \u0432\u043d\u0435\u0448\u043d\u0435\u0433\u043e \u043f\u0440\u043e\u0432\u0430\u0439\u0434\u0435\u0440\u0430 OpenID Connect (\u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u043f\u043e\u0441\u043b\u0435 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438, [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":120575,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-120574","post","type-post","status-publish","format-standard","has-post-thumbnail","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\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u044f Python-\u043f\u0430\u043a\u0435\u0442\u043e\u0432 PyPI (Python Package Index) \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0438 \u043e \u0432\u043d\u0435\u0434\u0440\u0435\u043d\u0438\u0438 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 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