Publication Date: |
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Last Update: |
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Current Version: | V1.1 |
CVSS v3.1 Base Score: | 10.0 |
Affected Product and Versions | Remediation |
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All versions |
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All versions |
Switch to "Single terminal system" (as described in the section Workarounds and Mitigations). Alternatively, consider migrating the STEP 7 project to the latest version of TIA Portal and uninstall S7-PM
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All versions < V5.7 |
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Siemens has identified the following specific workarounds and mitigations that customers can apply to reduce the risk:
If multiple Engineering Systems are in use ensure that the user accounts in use are restricted to the minimum required operating rights
Product-specific remediations or mitigations can be found in the section
Affected Products and Solution.
Please follow the General Security Recommendations.
As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity
The vulnerability classification has been performed by using the CVSS scoring system in version 3.1 (CVSS v3.1) (https://www.first.org/cvss/). The CVSS environmental score is specific to the customer’s environment and will impact the overall CVSS score. The environmental score should therefore be individually defined by the customer to accomplish final scoring.
An additional classification has been performed using the CWE classification, a community-developed list of common software security weaknesses. This serves as a common language and as a baseline for weakness identification, mitigation, and prevention efforts. A detailed list of CWE classes can be found at: https://cwe.mitre.org/.
The affected product contains a database management system that could allow remote users with low privileges to use embedded functions of the database (local or in a network share) that have impact on the server.
An attacker with network access to the server network could leverage these embedded functions to run code with elevated privileges in the database management system's server.
CVSS v3.1 Base Score | 10.0 |
CVSS Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:T/RC:C |
CWE | CWE-94: Improper Control of Generation of Code ('Code Injection') |
V1.0 (2023-06-13): | Publication Date |
V1.1 (2023-07-11): | Added a new mitigations to all affected products, adjusted summary and CVSS score |