CVE Vulnerabilities

CVE-2021-20532

Incorrect Default Permissions

Published: Apr 26, 2021 | Modified: Apr 30, 2021
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

IBM Spectrum Protect Client 8.1.0.0 through 8.1.11.0 could allow a local user to escalate their privileges to take full control of the system due to insecure directory permissions. IBM X-Force ID: 198811.

Weakness

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

Affected Software

Name Vendor Start Version End Version
Spectrum_protect_backup-archive_client Ibm 8.1.0.0 (including) 8.1.11.0 (including)
Spectrum_protect_for_virtual_environments Ibm 8.1.0.0 (including) 8.1.11.0 (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