CVE Vulnerabilities

CVE-2020-13542

Incorrect Default Permissions

Published: Dec 03, 2020 | Modified: Jun 07, 2022
CVSS 3.x
7.8
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.2 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu

A local privilege elevation vulnerability exists in the file system permissions of LogicalDoc 8.5.1 installation. Depending on the vector chosen, an attacker can either replace the service binary or replace DLL files loaded by the service, both which get executed by a service thus executing arbitrary commands with System privileges.

Weakness

During installation, installed file permissions are set to allow anyone to modify those files.

Affected Software

Name Vendor Start Version End Version
Logicaldoc Logicaldoc 8.5.1 (including) 8.5.1 (including)

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