Siemens TIA Portal Cloud V3.0 Configuration deserialization

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Siemens SIMATIC STEP 7 Safety V16, SIMATIC STEP 7 Safety V17, SIMATIC STEP 7 Safety V18, SIMATIC STEP 7 V16, SIMATIC STEP 7 V17, SIMATIC STEP 7 V18, SIMATIC WinCC Unified V16, SIMATIC WinCC Unified V17, SIMATIC WinCC Unified V18, SIMATIC WinCC V16, SIMATIC WinCC V17, SIMATIC WinCC V18, SIMOCODE ES V16, SIMOCODE ES V17, SIMOCODE ES V18, SIMOTION SCOUT TIA V5.4 SP1, SIMOTION SCOUT TIA V5.4 SP3, SIMOTION SCOUT TIA V5.5 SP1, SINAMICS Startdrive V16, SINAMICS Startdrive V17, SINAMICS Startdrive V18, SIRIUS Safety ES V17, SIRIUS Safety ES V18, SIRIUS Soft Starter ES V17, SIRIUS Soft Starter ES V18, Soft Starter ES V16 and TIA Portal Cloud V3.0. This vulnerability affects unknown code of the component Configuration Handler. The manipulation leads to deserialization. This vulnerability is uniquely identified as CVE-2023-32735. The attack is possible to be carried out remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Siemens SIMATIC STEP 7 Safety V16, SIMATIC STEP 7 Safety V17, SIMATIC STEP 7 Safety V18, SIMATIC STEP 7 V16, SIMATIC STEP 7 V17, SIMATIC STEP 7 V18, SIMATIC WinCC Unified V16, SIMATIC WinCC Unified V17, SIMATIC WinCC Unified V18, SIMATIC WinCC V16, SIMATIC WinCC V17, SIMATIC WinCC V18, SIMOCODE ES V16, SIMOCODE ES V17, SIMOCODE ES V18, SIMOTION SCOUT TIA V5.4 SP1, SIMOTION SCOUT TIA V5.4 SP3, SIMOTION SCOUT TIA V5.5 SP1, SINAMICS Startdrive V16, SINAMICS Startdrive V17, SINAMICS Startdrive V18, SIRIUS Safety ES V17, SIRIUS Safety ES V18, SIRIUS Soft Starter ES V17, SIRIUS Soft Starter ES V18, Soft Starter ES V16 and TIA Portal Cloud V3.0. It has been rated as critical. This issue affects some unknown processing of the component Configuration Handler. The manipulation with an unknown input leads to a deserialization vulnerability. Using CWE to declare the problem leads to CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at cert-portal.siemens.com. The identification of this vulnerability is CVE-2023-32735 since 05/12/2023. The exploitation is known to be easy. The attack may be initiated remotely. Additional levels of successful authentication are required for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/09/2024).

Upgrading eliminates this vulnerability.

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Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔍
CNA CVSS-BT Score: 🔍
CNA Vector: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.2
VulDB Temp Score: 6.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (siemens): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/12/2023 🔍
07/09/2024 +424 days 🔍
07/09/2024 +0 days 🔍
07/09/2024 +0 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-779936
Status: Confirmed

CVE: CVE-2023-32735 (🔍)
GCVE (CVE): GCVE-0-2023-32735
GCVE (VulDB): GCVE-100-270647

Entryinfo

Created: 07/09/2024 14:31
Changes: 07/09/2024 14:31 (75)
Complete: 🔍
Cache ID: 216::103

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