CVE-2023-32735

Description

A vulnerability has been identified in SIMATIC STEP 7 Safety V16 (All versions < V16 Update 7), SIMATIC STEP 7 Safety V17 (All versions < V17 Update 7), SIMATIC STEP 7 Safety V18 (All versions < V18 Update 2), SIMATIC STEP 7 V16 (All versions < V16 Update 7), SIMATIC STEP 7 V17 (All versions < V17 Update 7), SIMATIC STEP 7 V18 (All versions < V18 Update 2), SIMATIC WinCC Unified V16 (All versions < V16 Update 7), SIMATIC WinCC Unified V17 (All versions < V17 Update 7), SIMATIC WinCC Unified V18 (All versions < V18 Update 2), SIMATIC WinCC V16 (All versions < V16.7), SIMATIC WinCC V17 (All versions < V17.7), SIMATIC WinCC V18 (All versions < V18 Update 2), SIMOCODE ES V16 (All versions < V16 Update 7), SIMOCODE ES V17 (All versions < V17 Update 7), SIMOCODE ES V18 (All versions < V18 Update 2), SIMOTION SCOUT TIA V5.4 SP1 (All versions), SIMOTION SCOUT TIA V5.4 SP3 (All versions), SIMOTION SCOUT TIA V5.5 SP1 (All versions), SINAMICS Startdrive V16 (All versions), SINAMICS Startdrive V17 (All versions), SINAMICS Startdrive V18 (All versions), SIRIUS Safety ES V17 (All versions < V17 Update 7), SIRIUS Safety ES V18 (All versions < V18 Update 2), SIRIUS Soft Starter ES V17 (All versions < V17 Update 7), SIRIUS Soft Starter ES V18 (All versions < V18 Update 2), Soft Starter ES V16 (All versions < V16 Update 7), TIA Portal Cloud V3.0 (All versions < V18 Update 2). Affected applications do not properly restrict the .NET BinaryFormatter when deserializing hardware configuration profiles. 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.

Category

7.0
CVSS
Severity: High
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.20%
Affected: Siemens SIMATIC STEP 7 Safety V16
Affected: Siemens SIMATIC STEP 7 Safety V17
Affected: Siemens SIMATIC STEP 7 Safety V18
Affected: Siemens SIMATIC STEP 7 V16
Affected: Siemens SIMATIC STEP 7 V17
Affected: Siemens SIMATIC STEP 7 V18
Affected: Siemens SIMATIC WinCC Unified V16
Affected: Siemens SIMATIC WinCC Unified V17
Affected: Siemens SIMATIC WinCC Unified V18
Affected: Siemens SIMATIC WinCC V16
Affected: Siemens SIMATIC WinCC V17
Affected: Siemens SIMATIC WinCC V18
Affected: Siemens SIMOCODE ES V16
Affected: Siemens SIMOCODE ES V17
Affected: Siemens SIMOCODE ES V18
Affected: Siemens SIMOTION SCOUT TIA V5.4 SP1
Affected: Siemens SIMOTION SCOUT TIA V5.4 SP3
Affected: Siemens SIMOTION SCOUT TIA V5.5 SP1
Affected: Siemens SINAMICS Startdrive V16
Affected: Siemens SINAMICS Startdrive V17
Affected: Siemens SINAMICS Startdrive V18
Affected: Siemens SIRIUS Safety ES V17
Affected: Siemens SIRIUS Safety ES V18
Affected: Siemens SIRIUS Soft Starter ES V17
Affected: Siemens SIRIUS Soft Starter ES V18
Affected: Siemens Soft Starter ES V16
Affected: Siemens TIA Portal Cloud V3.0
Published at:
Updated at:

References

Link Tags
https://cert-portal.siemens.com/productcert/html/ssa-779936.html

Frequently Asked Questions

What is the severity of CVE-2023-32735?
CVE-2023-32735 has been scored as a high severity vulnerability.
How to fix CVE-2023-32735?
To fix CVE-2023-32735, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-32735 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-32735 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-32735?
CVE-2023-32735 affects Siemens SIMATIC STEP 7 Safety V16, Siemens SIMATIC STEP 7 Safety V17, Siemens SIMATIC STEP 7 Safety V18, Siemens SIMATIC STEP 7 V16, Siemens SIMATIC STEP 7 V17, Siemens SIMATIC STEP 7 V18, Siemens SIMATIC WinCC Unified V16, Siemens SIMATIC WinCC Unified V17, Siemens SIMATIC WinCC Unified V18, Siemens SIMATIC WinCC V16, Siemens SIMATIC WinCC V17, Siemens SIMATIC WinCC V18, Siemens SIMOCODE ES V16, Siemens SIMOCODE ES V17, Siemens SIMOCODE ES V18, Siemens SIMOTION SCOUT TIA V5.4 SP1, Siemens SIMOTION SCOUT TIA V5.4 SP3, Siemens SIMOTION SCOUT TIA V5.5 SP1, Siemens SINAMICS Startdrive V16, Siemens SINAMICS Startdrive V17, Siemens SINAMICS Startdrive V18, Siemens SIRIUS Safety ES V17, Siemens SIRIUS Safety ES V18, Siemens SIRIUS Soft Starter ES V17, Siemens SIRIUS Soft Starter ES V18, Siemens Soft Starter ES V16, Siemens TIA Portal Cloud V3.0.
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