CVE Vulnerabilities


Incorrect Permission Assignment for Critical Resource

Published: Apr 12, 2022 | Modified: Apr 19, 2022
CVSS 3.x
CVSS 2.x
7.2 HIGH

A vulnerability has been identified in SIMATIC Energy Manager Basic (All versions < V7.3 Update 1), SIMATIC Energy Manager PRO (All versions < V7.3 Update 1). Affected applications improperly assign permissions to critical directories and files used by the application processes. This could allow a local unprivileged attacker to achieve code execution with ADMINISTRATOR or even NT AUTHORITY/SYSTEM privileges.


The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

Affected Software

Name Vendor Start Version End Version
Simatic_energy_manager_basic Siemens * 7.3 (excluding)
Simatic_energy_manager_basic Siemens 7.3 (including) 7.3 (including)
Simatic_energy_manager_pro Siemens * 7.3 (excluding)
Simatic_energy_manager_pro Siemens 7.3 (including) 7.3 (including)

Potential Mitigations

  • Run the code in a “jail” or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict which files can be accessed in a particular directory or which commands can be executed by the software.
  • OS-level examples include the Unix chroot jail, AppArmor, and SELinux. In general, managed code may provide some protection. For example, in the Java SecurityManager allows the software to specify restrictions on file operations.
  • This may not be a feasible solution, and it only limits the impact to the operating system; the rest of the application may still be subject to compromise.
  • Be careful to avoid CWE-243 and other weaknesses related to jails.