GitHub ha rivelato informazioni su una vulnerabilit\u00e0 che consente l'accesso al contenuto delle variabili ambientali esposte nei container utilizzati nell'infrastruttura operativa. La vulnerabilit\u00e0 \u00e8 stata individuata da un partecipante al programma Bug Bounty, che \u00e8 idoneo a ricevere una ricompensa per la segnalazione di problemi di sicurezza. Il problema interessa sia il servizio GitHub.com sia le configurazioni di GitHub Enterprise Server (GHES) eseguite sui sistemi degli utenti. <\/p>\n
L'analisi dei log e l'audit dell'infrastruttura non hanno rivelato segni di sfruttamento della vulnerabilit\u00e0 in passato, a parte l'attivit\u00e0 del ricercatore che ha segnalato il problema. Tuttavia, \u00e8 stata avviata nella rete la sostituzione di tutte le chiavi di crittografia e delle credenziali che potrebbero essere state potenzialmente compromesse in caso di sfruttamento della vulnerabilit\u00e0 da parte di un attaccante. La sostituzione delle chiavi interne ha causato disservizi a alcuni servizi dal 27 al 29 dicembre. Gli amministratori di GitHub hanno cercato di correggere gli errori commessi durante l'aggiornamento delle chiavi effettuato ieri, che riguardava i clienti. <\/p>\n
Tra l'altro, \u00e8 stata aggiornata la chiave GPG utilizzata per firmare digitalmente i commit creati tramite l'editor web di GitHub durante l'accettazione delle pull request sul sito o attraverso lo strumento Codespace. La vecchia chiave ha smesso di essere valida il 16 gennaio alle 23:00 ora di Mosca, e da ieri \u00e8 stata applicata una nuova chiave. A partire dal 23 gennaio, tutti i nuovi commit firmati con la chiave precedente non saranno contrassegnati sul sito di GitHub come verificati. <\/p>\n
Il 16 gennaio sono state aggiornate anche le chiavi pubbliche utilizzate per crittografare i dati dell'utente inviati tramite API in GitHub Actions, GitHub Codespaces e Dependabot. Gli utenti che utilizzano chiavi pubbliche di GitHub per la verifica locale dei commit e la crittografia dei dati trasmessi sono invitati a verificare di aver aggiornato le chiavi GPG di GitHub e che i loro sistemi continuano a funzionare dopo la sostituzione delle chiavi. <\/p>\n
GitHub ha gi\u00e0 risolto la vulnerabilit\u00e0 sul sito GitHub.com e ha rilasciato un aggiornamento per il prodotto GHES 3.8.13, 3.9.8, 3.10.5 e 3.11.3, in cui \u00e8 stata segnalata la correzione di CVE-2024-0200 (uso non sicuro delle riflessioni, che porta all'esecuzione di codice o di metodi controllati dall'utente sul lato). server<\/a>Un attacco alle installazioni locali di GHES potrebbe essere stato perpetrato se l'attaccante possedeva un'account con diritti di gestione dell'organizzazione (organization owner). 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La vulnerabilit\u00e0 \u00e8 stata scoperta da un partecipante al programma Bug Bounty, in cerca di una ricompensa per la segnalazione di problemi di sicurezza. Il problema riguarda sia il servizio GitHub.com che le configurazioni di GitHub Enterprise Server (GHES) eseguite sui sistemi degli utenti. 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Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"