Siemens SIMATIC STEP 7 V18 up to 3.x deserialization

CVSS Meta Temp Score
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CTI Interest Score
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8.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as very critical, has been found in Siemens SIMATIC PCS neo V4.0, SIMATIC STEP 7 V16, SIMATIC STEP 7 V17 and SIMATIC STEP 7 V18 up to 3.x. Impacted is an unknown function. This manipulation causes deserialization. The identification of this vulnerability is CVE-2022-45147. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as very critical was found in Siemens SIMATIC PCS neo V4.0, SIMATIC STEP 7 V16, SIMATIC STEP 7 V17 and SIMATIC STEP 7 V18 up to 3.x. Affected by this vulnerability is an unknown functionality. The manipulation with an unknown input leads to a deserialization vulnerability. The CWE definition for the vulnerability is CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability has been identified in SIMATIC PCS neo V4.0 (All versions), SIMATIC STEP 7 V16 (All versions), SIMATIC STEP 7 V17 (All versions), SIMATIC STEP 7 V18 (All versions < V18 Update 2). Affected applications do not properly restrict the .NET BinaryFormatter when deserializing user-controllable input. 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.

The advisory is shared at cert-portal.siemens.com. This vulnerability is known as CVE-2022-45147 since 11/11/2022. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/09/2024).

Upgrading to version 4.0 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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: 8.3
VulDB Meta Temp Score: 8.1

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.8
CNA Vector (siemens): 🔍

CVSSv2info

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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: 🔍

Upgrade: SIMATIC PCS neo V4.0/SIMATIC STEP 7 V16/SIMATIC STEP 7 V17/SIMATIC STEP 7 V18 4.0

Timelineinfo

11/11/2022 🔍
07/09/2024 +605 days 🔍
07/09/2024 +0 days 🔍
07/09/2024 +0 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-825651
Status: Confirmed

CVE: CVE-2022-45147 (🔍)
GCVE (CVE): GCVE-0-2022-45147
GCVE (VulDB): GCVE-100-270649

Entryinfo

Created: 07/09/2024 14:32
Changes: 07/09/2024 14:32 (76)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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