Siemens SINUMERIK Edge up to 3.1 TLS Connection certificate validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Siemens SINUMERIK Edge up to 3.1. It has been rated as critical. This affects an unknown function of the component TLS Connection Handler. Performing a manipulation results in certificate validation. This vulnerability is reported as CVE-2021-42027. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Siemens SINUMERIK Edge up to 3.1. It has been classified as critical. This affects an unknown function of the component TLS Connection Handler. The manipulation with an unknown input leads to a certificate validation vulnerability. CWE is classifying the issue as CWE-295. The product does not validate, or incorrectly validates, a certificate. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 12/14/2021 as ssa-523250. The advisory is shared at cert-portal.siemens.com. This vulnerability is uniquely identified as CVE-2021-42027 since 10/06/2021. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1587.003 for this issue.

Upgrading to version 3.2 eliminates this vulnerability.

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

Productinfo

Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
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: SINUMERIK Edge 3.2

Timelineinfo

10/06/2021 🔍
12/14/2021 +69 days 🔍
12/14/2021 +0 days 🔍
12/16/2021 +2 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-523250
Status: Confirmed

CVE: CVE-2021-42027 (🔍)
GCVE (CVE): GCVE-0-2021-42027
GCVE (VulDB): GCVE-100-188097

Entryinfo

Created: 12/14/2021 17:04
Updated: 12/16/2021 14:11
Changes: 12/14/2021 17:04 (40), 12/16/2021 14:11 (1)
Complete: 🔍
Cache ID: 216::103

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

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