CVE Vulnerabilities

CVE-2020-14514

Insertion of Sensitive Information Into Sent Data

Published: Sep 01, 2020 | Modified: Sep 11, 2020
CVSS 3.x
4.3
MEDIUM
Source:
NVD
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS 2.x
3.3 LOW
AV:A/AC:L/Au:N/C:P/I:N/A:N
RedHat/V2
RedHat/V3
Ubuntu

All trailer Power Line Communications are affected. PLC bus traffic can be sniffed reliably via an active antenna up to 6 feet away. Further distances are also possible, subject to environmental conditions and receiver improvements.

Weakness

The code transmits data to another actor, but a portion of the data includes sensitive information that should not be accessible to that actor.

Affected Software

Name Vendor Start Version End Version
Power_line_communications Nmfc * *

Potential Mitigations

  • Compartmentalize the system to have “safe” areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
  • Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

References