CVE-2021-40855

The EU Technical Specifications for Digital COVID Certificates before 1.1 mishandle certificate governance. A non-production public key certificate could have been used in production.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/eu-digital-green-certificates/dgc-overview/security/advisories/GHSA-xcvc-p4fw-qmcj	Third Party Advisory
https://www.consilium.europa.eu/en/policies/coronavirus/eu-digital-covid-certificate/	Product Vendor Advisory
https://github.com/eu-digital-green-certificates/dgc-overview/security/advisories/GHSA-xcvc-p4fw-qmcj	Third Party Advisory
https://www.consilium.europa.eu/en/policies/coronavirus/eu-digital-covid-certificate/	Product Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:europa:technical_specifications_for_digital_covid_certificates:*:*:*:*:*:*:*:*

History

21 Nov 2024, 06:24

Type	Values Removed	Values Added
References	~~() https://github.com/eu-digital-green-certificates/dgc-overview/security/advisories/GHSA-xcvc-p4fw-qmcj - Third Party Advisory~~	() https://github.com/eu-digital-green-certificates/dgc-overview/security/advisories/GHSA-xcvc-p4fw-qmcj - Third Party Advisory
References	~~() https://www.consilium.europa.eu/en/policies/coronavirus/eu-digital-covid-certificate/ - Product, Vendor Advisory~~	() https://www.consilium.europa.eu/en/policies/coronavirus/eu-digital-covid-certificate/ - Product, Vendor Advisory

Information

Published : 2022-01-21 16:15

Updated : 2024-11-21 06:24

NVD link : CVE-2021-40855

Mitre link : CVE-2021-40855

CVE.ORG link : CVE-2021-40855

JSON object : View

Products Affected

europa

technical_specifications_for_digital_covid_certificates

CWE

CWE-295

Improper Certificate Validation

{"id": "CVE-2021-40855", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2022-01-21T16:15:07.877", "references": [{"url": "https://github.com/eu-digital-green-certificates/dgc-overview/security/advisories/GHSA-xcvc-p4fw-qmcj", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.consilium.europa.eu/en/policies/coronavirus/eu-digital-covid-certificate/", "tags": ["Product", "Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/eu-digital-green-certificates/dgc-overview/security/advisories/GHSA-xcvc-p4fw-qmcj", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.consilium.europa.eu/en/policies/coronavirus/eu-digital-covid-certificate/", "tags": ["Product", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-295"}]}], "descriptions": [{"lang": "en", "value": "The EU Technical Specifications for Digital COVID Certificates before 1.1 mishandle certificate governance. A non-production public key certificate could have been used in production."}, {"lang": "es", "value": "Las especificaciones t\u00e9cnicas de la UE para los certificados digitales COVID versiones anteriores a 1.1, manejan inapropiadamente el gobierno de los certificados. Un certificado de clave p\u00fablica que no es de producci\u00f3n podr\u00eda haber sido usado en producci\u00f3n"}], "lastModified": "2024-11-21T06:24:56.420", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:europa:technical_specifications_for_digital_covid_certificates:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A82A49E5-0ED2-4616-A035-5765DB96D8F5", "versionEndExcluding": "1.1"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}