Siemens SCALANCE X-200/SCALANCE X-200IRT C-PLUG hard-coded key

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.5$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Siemens SCALANCE X-200 and SCALANCE X-200IRT. The affected element is an unknown function of the component C-PLUG. Performing a manipulation results in hard-coded key. This vulnerability is known as CVE-2020-28391. Access to the local network is required for this attack. No exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Siemens SCALANCE X-200 and SCALANCE X-200IRT (the affected version is unknown). This affects an unknown code of the component C-PLUG. The manipulation with an unknown input leads to a hard-coded key vulnerability. CWE is classifying the issue as CWE-321. The use of a hard-coded cryptographic key significantly increases the possibility that encrypted data may be recovered. This is going to have an impact on confidentiality.

The weakness was published 01/13/2021 as ssa-274900. The advisory is shared at cert-portal.siemens.com. This vulnerability is uniquely identified as CVE-2020-28391. 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 02/12/2021). MITRE ATT&CK project uses the attack technique T1600.001 for this issue.

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

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: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.5

VulDB Base Score: 3.1
VulDB Temp Score: 3.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
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: Hard-coded key
CWE: CWE-321 / CWE-320
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/10/2020 🔍
01/13/2021 +64 days 🔍
01/13/2021 +0 days 🔍
02/12/2021 +30 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-274900
Status: Confirmed

CVE: CVE-2020-28391 (🔍)
GCVE (CVE): GCVE-0-2020-28391
GCVE (VulDB): GCVE-100-167745

Entryinfo

Created: 01/13/2021 11:38
Updated: 02/12/2021 17:47
Changes: 01/13/2021 11:38 (23), 01/13/2021 11:40 (17), 02/12/2021 17:42 (2), 02/12/2021 17:47 (18)
Complete: 🔍
Cache ID: 216::103

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

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