CVE-2017-5624 Information

Description

An issue was discovered in OxygenOS before 4.0.3 for OnePlus 3 and 3T. The attacker can persistently make the (locked) bootloader start the platform with dm-verity disabled by issuing the ‘fastboot oem disable_dm_verity’ command. Having dm-verity disabled the kernel will not verify the system partition (and any other dm-verity protected partition) which may allow for persistent code execution and privilege escalation.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://securityresear.ch/2017/02/08/oneplus3-bootloader-vulns/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8