SB2024071241 - Deserialization of Untrusted Data in Siemens STEP 7 Safety and Totally Integrated Automation Portal



SB2024071241 - Deserialization of Untrusted Data in Siemens STEP 7 Safety and Totally Integrated Automation Portal

Published: July 12, 2024

Security Bulletin ID SB2024071241
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Deserialization of Untrusted Data (CVE-ID: CVE-2023-32737)

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.


Remediation

Install update from vendor's website.