CVE-2017-5554 Information

Description

An issue was discovered in ABOOT in OnePlus 3 and 3T OxygenOS before 4.0.2. The attacker can reboot the device into the fastboot mode which could be done without any authentication. A physical attacker can press the \Volume Up\ button during device boot where an attacker with ADB access can issue the adb reboot bootloader command. Then the attacker can put the platform’s SELinux in permissive mode which severely weakens it by issuing: fastboot oem selinux permissive.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/95706 https://securityresear.ch/2017/01/11/fastboot-oem-selinux-permissive/ https://www.xda-developers.com/oneplus-33t-bootloader-vulnerability-allows-changing-of-selinux-to-permissive-mode-in-fastboot/

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.1