Siemens SIMATIC S7-PLCSIM User Setting input validation

Summaryinfo

A vulnerability identified as very critical has been detected in Siemens SIMATIC S7-PLCSIM, SIMATIC STEP 7 Safety, SIMATIC STEP 7, SIMATIC WinCC Unified, SIMATIC WinCC, SIMOCODE ES, SIMOTION SCOUT TIA, SINAMICS Startdrive, SIRIUS Safety ES and TIA Portal Cloud. Affected by this issue is some unknown functionality of the component User Setting Handler. Performing a manipulation results in input validation. This vulnerability is identified as CVE-2024-52051. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as very critical has been found in Siemens SIMATIC S7-PLCSIM, SIMATIC STEP 7 Safety, SIMATIC STEP 7, SIMATIC WinCC Unified, SIMATIC WinCC, SIMOCODE ES, SIMOTION SCOUT TIA, SINAMICS Startdrive, SIRIUS Safety ES and TIA Portal Cloud. This affects some unknown functionality of the component User Setting Handler. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability has been identified in SIMATIC S7-PLCSIM V17 (All versions), SIMATIC S7-PLCSIM V18 (All versions), SIMATIC STEP 7 Safety V17 (All versions < V17 Update 9), SIMATIC STEP 7 Safety V18 (All versions), SIMATIC STEP 7 Safety V19 (All versions < V19 Update 4), SIMATIC STEP 7 V17 (All versions < V17 Update 9), SIMATIC STEP 7 V18 (All versions), SIMATIC STEP 7 V19 (All versions < V19 Update 4), SIMATIC WinCC Unified PC Runtime V18 (All versions), SIMATIC WinCC Unified PC Runtime V19 (All versions < V19 Update 4), SIMATIC WinCC Unified V17 (All versions < V17 Update 9), SIMATIC WinCC Unified V18 (All versions), SIMATIC WinCC Unified V19 (All versions < V19 Update 4), SIMATIC WinCC V17 (All versions < V17 Update 9), SIMATIC WinCC V18 (All versions), SIMATIC WinCC V19 (All versions < V19 Update 4), SIMOCODE ES V17 (All versions), SIMOCODE ES V18 (All versions), SIMOCODE ES V19 (All versions), SIMOTION SCOUT TIA V5.4 (All versions), SIMOTION SCOUT TIA V5.5 (All versions), SIMOTION SCOUT TIA V5.6 (All versions < V5.6 SP1 HF7), SINAMICS Startdrive V17 (All versions), SINAMICS Startdrive V18 (All versions), SINAMICS Startdrive V19 (All versions), SIRIUS Safety ES V17 (TIA Portal) (All versions), SIRIUS Safety ES V18 (TIA Portal) (All versions), SIRIUS Safety ES V19 (TIA Portal) (All versions), SIRIUS Soft Starter ES V17 (TIA Portal) (All versions), SIRIUS Soft Starter ES V18 (TIA Portal) (All versions), SIRIUS Soft Starter ES V19 (TIA Portal) (All versions), TIA Portal Cloud V17 (All versions), TIA Portal Cloud V18 (All versions), TIA Portal Cloud V19 (All versions < V5.2.1.1). The affected devices do not properly sanitize user-controllable input when parsing user settings. This could allow an attacker to locally execute arbitrary commands in the host operating system with the privileges of the user.

The advisory is shared at cert-portal.siemens.com. This vulnerability is uniquely identified as CVE-2024-52051 since 11/05/2024. The exploitability is told to be easy. It is possible to initiate the attack remotely. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 12/09/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• SCADA Software

Vendor

• Siemens

Name

• SIMATIC S7-PLCSIM
• SIMATIC STEP 7
• SIMATIC STEP 7 Safety
• SIMATIC WinCC
• SIMATIC WinCC Unified
• SIMOCODE ES
• SIMOTION SCOUT TIA
• SINAMICS Startdrive
• SIRIUS Safety ES
• TIA Portal Cloud

License

• commercial

Website

• Vendor: https://www.siemens.com/

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Entryinfo

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