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Last Update: |
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Current Version: | V1.2 |
CVSS v3.1 Base Score: | 7.5 |
Affected Product and Versions | Remediation |
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All versions |
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All versions |
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All versions < V7.0.3 |
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All versions |
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All versions |
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All versions < V7.0.3 |
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All versions < V7.0.3 |
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All versions |
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All versions |
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All versions < V7.0.3 |
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All versions |
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All versions < V7.0.3 |
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All versions |
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All versions < V6.0.10 |
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All versions < V8.2.3 |
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All versions < V10.1 |
Update to V10.1 or later version
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All versions < V7.0.3 |
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All versions < V7.0.3 |
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All versions |
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All versions |
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Siemens has identified the following specific workarounds and mitigations that customers can apply to reduce the risk:
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/.
Affected devices improperly handle specially crafted packets sent to port 102/tcp.
This could allow an attacker to create a Denial-of-Service condition. A restart is needed to restore normal operations.
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-119: Improper Restriction of Operations within the Bounds of a Memory Buffer |
V1.0 (2022-04-12): | Publication Date |
V1.1 (2022-08-09): | Added fix for SIMATIC S7-410 CPU family |
V1.2 (2023-04-11): | Added explicit MLFBs and fixes for SIMATIC S7-400 V7 CPUs (incl. SIPLUS variants) |