Deserialization of Untrusted Data in Totally Integrated Automation Portal (TIA Portal) and SIMATIC STEP 7 Safety - CVE-2023-32737

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Main Vulnerability Database Vulnerabilities #VU94200

Deserialization of Untrusted Data in Totally Integrated Automation Portal (TIA Portal) and SIMATIC STEP 7 Safety - CVE-2023-32737

Published: July 12, 2024


Vulnerability identifier: #VU94200
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-32737
CWE-ID: CWE-502
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Siemens
Affected software:
Totally Integrated Automation Portal (TIA Portal)
SIMATIC STEP 7 Safety

Detailed vulnerability description

The vulnerability allows a local user to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data within the .NET BinaryFormatter. A local administrator can pass specially crafted data to the application and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


How to mitigate CVE-2023-32737

Install updates from vendor's website.

Sources