An issue was discovered on OnePlus One, X, 2, 3, and 3T devices. Due to a lenient updater-script in the OnePlus OTA images, and the fact that both ROMs use the same OTA verification keys, attackers can install HydrogenOS over OxygenOS and vice versa, even on locked bootloaders, which allows for exploitation of vulnerabilities patched on one image but not on the other, in addition to expansion of the attack surface. This vulnerability can be exploited by Man-in-the-Middle (MiTM) attackers targeting the update process. This is possible because the update transaction does not occur over TLS (CVE-2016-10370). In addition, physical attackers 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).
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2017-05-11T18:00:00

Updated: 2024-08-05T16:48:22.605Z

Reserved: 2017-05-08T00:00:00

Link: CVE-2017-8850

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2017-05-11T18:29:00.250

Modified: 2019-10-03T00:03:26.223

Link: CVE-2017-8850

cve-icon Redhat

No data.