CVE Vulnerabilities

CVE-2019-7588

Incorrect Default Permissions

Published: Jun 18, 2019 | Modified: Aug 24, 2020
CVSS 3.x
7
HIGH
Source:
NVD
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
6.9 MEDIUM
AV:L/AC:M/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu

A vulnerability in the exacqVision Enterprise System Manager (ESM) v5.12.2 application whereby unauthorized privilege escalation can potentially be achieved. This vulnerability impacts exacqVision ESM v5.12.2 and all prior versions of ESM running on a Windows operating system. This issue does not impact any Windows Server OSs, or Linux deployments with permissions that are not inherited from the root directory. Authorized Users have ‘modify’ permission to the ESM folders, which allows a low privilege account to modify files located in these directories. An executable can be renamed and replaced by a malicious file that could connect back to a bad actor providing system level privileges. A low privileged user is not able to restart the service, but a restart of the system would trigger the execution of the malicious file. This issue affects: Exacq Technologies, Inc. exacqVision Enterprise System Manager (ESM) Version 5.12.2 and prior versions; This issue does not affect: Exacq Technologies, Inc. exacqVision Enterprise System Manager (ESM) 19.03 and above.

Weakness

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

Affected Software

Name Vendor Start Version End Version
Enterprise_system_manager Exacq * 5.12.2 (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