CVE Vulnerabilities

CVE-2021-21957

Incorrect Default Permissions

Published: Dec 08, 2021 | Modified: Nov 21, 2024
CVSS 3.x
7.3
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

A privilege escalation vulnerability exists in the Remote Server functionality of Dream Report ODS Remote Connector 20.2.16900.0. A specially-crafted command injection can lead to elevated capabilities. An attacker can provide a malicious file to trigger this vulnerability.

Weakness

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

Affected Software

Name Vendor Start Version End Version
Remote_connector Dreamreport 20.2.16900.0 (including) 20.2.16900.0 (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