Siemens SIMATIC S7-1200 CPU UART routine

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Siemens SIMATIC S7-1200 CPU and classified as critical. Affected by this issue is some unknown functionality of the component UART Handler. The manipulation results in routine. This vulnerability is known as CVE-2019-13945. An attack on the physical device is feasible. No exploit is available.

Detailsinfo

A vulnerability classified as critical has been found in Siemens SIMATIC S7-1200 CPU (SCADA Software) (the affected version is unknown). Affected is an unknown code of the component UART Handler. The manipulation with an unknown input leads to a routine vulnerability. CWE is classifying the issue as CWE-749. The product provides an Applications Programming Interface (API) or similar interface for interaction with external actors, but the interface includes a dangerous method or function that is not properly restricted. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A vulnerability has been identified in S7-1200 CPU (All versions). There is an access mode used during manufacturing of S7-1200 CPUs that allows additional diagnostic functionality. The security vulnerability could be exploited by an attacker with physical access to the UART interface during boot process. At the time of advisory publication no public exploitation of this security vulnerability was known.

The weakness was published 12/12/2019. This vulnerability is traded as CVE-2019-13945 since 07/18/2019. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Routine
CWE: CWE-749
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/18/2019 🔍
12/12/2019 +147 days 🔍
12/13/2019 +1 days 🔍
03/11/2024 +1550 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-686531
Status: Not defined

CVE: CVE-2019-13945 (🔍)
GCVE (CVE): GCVE-0-2019-13945
GCVE (VulDB): GCVE-100-147060

Entryinfo

Created: 12/13/2019 06:57
Updated: 03/11/2024 06:52
Changes: 12/13/2019 06:57 (34), 12/13/2019 07:02 (18), 03/11/2024 06:52 (4)
Complete: 🔍
Cache ID: 216::103

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