Publication Date:
Last Update:
Current Version: V1.2
CVSS v3.1 Base Score: 7.5
Affected Product and Versions Remediation

All versions >= V2022.4 < V2023.1

All versions >= V5.2.1 < V5.3.0

As a mitigation for vulnerable versions: Ensure that only trusted (CA) certificates are contained in the Machine Agent's truststore

All versions >= V3.2.7

All versions >= V1.80 < V2.20

As a mitigation for vulnerable versions: In the truststore, do not add CA certificates that contain a nameConstraint-extension (https://www.rfc-editor.org/rfc/rfc5280#section-4.2.1.10) with punycode-encoded internationalized domain names

All versions >= V2.13 < V2.13.0.3
  • Siemens products that contain a vulnerable TLS server and have certificate-based client authentication enabled: do not configure trust for CA certificates, that contain a nameConstraint-extension (https://www.rfc-editor.org/rfc/rfc5280#section-4.2.1.10) with punycode-encoded internationalized domain names
  • Siemens products that contain a vulnerable TLS client: in cases where this option is configurable: ensure that TLS server certificate verification is turned on and do not configure trust for CA certificates, that contain a nameConstraint-extension (https://www.rfc-editor.org/rfc/rfc5280#section-4.2.1.10) with punycode-encoded internationalized domain names

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/.

CVSS v3.1 Base Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C
CWE CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVSS v3.1 Base Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C
CWE CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

https://www.siemens.com/cert/advisories

V1.0 (2022-12-13): Publication Date
V1.1 (2023-04-11): Added fix for Calibre ICE and SICAM GridPass
V1.2 (2023-07-11): Added fix for Mcenter (SINUMERIK Integrate) and for SIMATIC RTLS Locating Manager