CVE Vulnerabilities

CVE-2018-6598

Incorrect Permission Assignment for Critical Resource

Published: Aug 29, 2018 | Modified: Oct 03, 2019
CVSS 3.x
7.1
HIGH
Source:
NVD
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CVSS 2.x
5.6 MEDIUM
AV:L/AC:L/Au:N/C:N/I:P/A:C
RedHat/V2
RedHat/V3
Ubuntu

An issue was discovered on Orbic Wonder Orbic/RC555L/RC555L:7.1.2/N2G47H/329100b:user/release-keys devices. Any app co-located on the device can send an intent to factory reset the device programmatically because of com.android.server.MasterClearReceiver. This does not require any user interaction and does not require any permission to perform. A factory reset will remove all user data from the device. This will result in the loss of any data that the user has not backed up or synced externally. This capability to perform a factory reset is not directly available to third-party apps (those that the user installs themselves), although this capability is present in an unprotected component of the Android OS. This vulnerability is not present in Googles Android Open Source Project (AOSP) code. Therefore, it was introduced by Orbic or another entity in the supply chain.

Weakness

The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

Affected Software

Name Vendor Start Version End Version
Wonder_rc555l_firmware Orbic 7.1.2 (including) 7.1.2 (including)

Potential Mitigations

  • Run the code in a “jail” or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict which files can be accessed in a particular directory or which commands can be executed by the software.
  • OS-level examples include the Unix chroot jail, AppArmor, and SELinux. In general, managed code may provide some protection. For example, java.io.FilePermission in the Java SecurityManager allows the software to specify restrictions on file operations.
  • This may not be a feasible solution, and it only limits the impact to the operating system; the rest of the application may still be subject to compromise.
  • Be careful to avoid CWE-243 and other weaknesses related to jails.

References