CVE Vulnerabilities

CVE-2020-26180

Incorrect Default Permissions

Published: Jul 28, 2021 | Modified: Aug 06, 2021
CVSS 3.x
8.8
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
6.5 MEDIUM
AV:N/AC:L/Au:S/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

Dell EMC Isilon OneFS supported versions 8.1 and later and Dell EMC PowerScale OneFS supported version 9.0.0 contain an access issue with the remotesupport user account. A remote malicious user with low privileges may gain access to data stored on the /ifs directory through most protocols.

Weakness

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

Affected Software

Name Vendor Start Version End Version
Emc_isilon_onefs Dell 8.1.0 (including) *
Emc_powerscale_onefs Dell 9.0.0 (including) 9.0.0 (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