CVE Vulnerabilities

CVE-2022-22518

Incorrect Default Permissions

Published: Apr 07, 2022 | Modified: May 12, 2022
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS 2.x
6.4 MEDIUM
AV:N/AC:L/Au:N/C:P/I:P/A:N
RedHat/V2
RedHat/V3
Ubuntu

A bug in CmpUserMgr component can lead to only partially applied security policies. This can result in enabled, anonymous access to components part of the applied security policy.

Weakness

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

Affected Software

Name Vendor Start Version End Version
Control_for_beaglebone_sl Codesys 4.4.0.0 (including) 4.5.0.0 (excluding)
Control_for_beckhoff_cx9020 Codesys 4.4.0.0 (including) 4.5.0.0 (excluding)
Control_for_empc-a/imx6_sl Codesys 4.4.0.0 (including) 4.5.0.0 (excluding)
Control_for_iot2000_sl Codesys 4.4.0.0 (including) 4.5.0.0 (excluding)
Control_for_linux_sl Codesys 4.4.0.0 (including) 4.5.0.0 (excluding)
Control_for_pfc100_sl Codesys 4.4.0.0 (including) 4.5.0.0 (excluding)
Control_for_pfc200_sl Codesys 4.4.0.0 (including) 4.5.0.0 (excluding)
Control_for_raspberry_pi_sl Codesys 4.4.0.0 (including) 4.5.0.0 (excluding)
Control_for_wago_touch_panels_600_sl Codesys 4.4.0.0 (including) 4.5.0.0 (excluding)
Control_runtime_system_toolkit Codesys 3.5.17.0 (including) 3.5.18.0 (excluding)

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