What is the severity of CVE-2023-32737?

CVE-2023-32737 has been rated as a critical vulnerability due to its potential for arbitrary code execution.

How does CVE-2023-32737 impact SIMATIC STEP 7 Safety?

CVE-2023-32737 allows attackers to exploit type confusion during the deserialization of user-controllable input in SIMATIC STEP 7 Safety.

How do I fix CVE-2023-32737?

To mitigate CVE-2023-32737, upgrade to SIMATIC STEP 7 Safety V18 Update 2 or later.

Which versions of SIMATIC STEP 7 Safety are affected by CVE-2023-32737?

All versions of SIMATIC STEP 7 Safety prior to V18 Update 2 are vulnerable to CVE-2023-32737.

What should I do if my system is vulnerable to CVE-2023-32737?

If your system is affected by CVE-2023-32737, you should prioritize applying the latest updates from Siemens to secure your application.

Vulnerability/
CVE-2023-32737

high

CWE

502

9/7/2024

2/8/2024

CVE-2023-32737

First published: Tue Jul 09 2024(Updated: )

A vulnerability has been identified in SIMATIC STEP 7 Safety V18 (All versions < V18 Update 2). Affected applications do not properly restrict the .NET BinaryFormatter when deserializing user-controllable input. This could allow an attacker to cause a type confusion and execute arbitrary code within the affected application. This is the same issue that exists for .NET BinaryFormatter https://docs.microsoft.com/en-us/visualstudio/code-quality/ca2300.

Credit: productcert@siemens.com

Affected Software	Affected Version	How to fix
Siemens SIMATIC STEP 7 Safety	<V18 Update 2

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Reference Links

https://cert-portal.siemens.com/productcert/html/ssa-313039.html

Frequently Asked Questions

What is the severity of CVE-2023-32737?
CVE-2023-32737 has been rated as a critical vulnerability due to its potential for arbitrary code execution.
How does CVE-2023-32737 impact SIMATIC STEP 7 Safety?
CVE-2023-32737 allows attackers to exploit type confusion during the deserialization of user-controllable input in SIMATIC STEP 7 Safety.
How do I fix CVE-2023-32737?
To mitigate CVE-2023-32737, upgrade to SIMATIC STEP 7 Safety V18 Update 2 or later.
Which versions of SIMATIC STEP 7 Safety are affected by CVE-2023-32737?
All versions of SIMATIC STEP 7 Safety prior to V18 Update 2 are vulnerable to CVE-2023-32737.
What should I do if my system is vulnerable to CVE-2023-32737?
If your system is affected by CVE-2023-32737, you should prioritize applying the latest updates from Siemens to secure your application.

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