Deserialization Vulnerability in SIMATIC STEP 7 Safety Could Lead to Arbitrary Code Execution
CVE-2023-32737

6.3MEDIUM

Key Information:

Vendor
Siemens
Status
Simatic Step 7 Safety V18
Vendor
CVE Published:
9 July 2024

Summary

A flaw has been located in SIMATIC STEP 7 Safety V18 versions earlier than V18 Update 2, where the handling of user-controlled input during .NET BinaryFormatter deserialization lacks proper restrictions. This deficiency can enable an attacker to exploit the vulnerability, causing type confusion and potentially leading to execution of arbitrary code within the affected application. Organizations using these versions are advised to evaluate the impact and update to the secure version to mitigate risks.

Affected Version(s)

SIMATIC STEP 7 Safety V18 0

References

https://cert-portal.siemens.com/productcert/html/ssa-3130...

CVSS V3.1

Score:
6.3
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
High
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.