CVE-2017-5948— 多款OnePlus产品OxygenOS和HydrogenOS OTAs 安全漏洞

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An issue was discovered on OnePlus One, X, 2, 3, and 3T devices. OxygenOS and HydrogenOS are vulnerable to downgrade attacks. This is due to a lenient 'updater-script' in OTAs that does not check that the current version is lower than or equal to the given image's. Downgrades can occur even on locked bootloaders and without triggering a factory reset, allowing for exploitation of now-patched vulnerabilities with access to user data. This vulnerability can be exploited by a Man-in-the-Middle (MiTM) attacker targeting the update process. This is possible because the update transaction does not occur over TLS (CVE-2016-10370). In addition, a physical attacker can reboot the phone into recovery, and then use 'adb sideload' to push the OTA (on OnePlus 3/3T 'Secure Start-up' must be off).

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多款OnePlus产品OxygenOS和HydrogenOS OTAs 安全漏洞

OnePlus One等都是中国一加科技（OnePlus）公司的智能手机。OxygenOS和HydrogenOS都是其自带的操作系统。HydrogenOS OTAs是HydrogenOS中的一个系统更新应用程序。 多款OnePlus产品中的OxygenOS和HydrogenOS OTAs存在安全漏洞。攻击者可利用该漏洞实施降级攻击。以下产品受到影响：OnePlus One；OnePlus X；OnePlus 2；OnePlus 3；OnePlus 3T。

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