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: 5.4 [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]
CVE-ID: CVE-2023-32737
CWE-ID: CWE-502
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Totally Integrated Automation Portal (TIA Portal)
SIMATIC STEP 7 Safety
SIMATIC STEP 7 Safety
How to mitigate CVE-2023-32737
Install updates from vendor's website.
Totally Integrated Automation Portal (TIA Portal) - update to 18 Update 2
SIMATIC STEP 7 Safety - update to 18 Update 2
SIMATIC STEP 7 Safety - update to 18 Update 2