CVE-2021-27098

In SPIRE 0.8.1 through 0.8.4 and before versions 0.9.4, 0.10.2, 0.11.3 and 0.12.1, specially crafted requests to the FetchX509SVID RPC of SPIRE Server’s Legacy Node API can result in the possible issuance of an X.509 certificate with a URI SAN for a SPIFFE ID that the agent is not authorized to distribute. Proper controls are in place to require that the caller presents a valid agent certificate that is already authorized to issue at least one SPIFFE ID, and the requested SPIFFE ID belongs to the same trust domain, prior to being able to trigger this vulnerability. This issue has been fixed in SPIRE versions 0.8.5, 0.9.4, 0.10.2, 0.11.3 and 0.12.1.

CVSS v3 8.1 HIGH
CVSS v2.0 5.5 MEDIUM

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

5.5^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.0 / Impact : 4.9

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://github.com/spiffe/spire/security/advisories/GHSA-h746-rm5q-8mgq	Third Party Advisory
https://github.com/spiffe/spire/security/advisories/GHSA-h746-rm5q-8mgq	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:cncf:spire::::::::
	cpe:2.3:a:cncf:spire::::::::
	cpe:2.3:a:cncf:spire::::::::
	cpe:2.3:a:cncf:spire::::::::
	cpe:2.3:a:cncf:spire::::::::

History

21 Nov 2024, 05:57

Type	Values Removed	Values Added
References	~~() https://github.com/spiffe/spire/security/advisories/GHSA-h746-rm5q-8mgq - Third Party Advisory~~	() https://github.com/spiffe/spire/security/advisories/GHSA-h746-rm5q-8mgq - Third Party Advisory

Information

Published : 2021-03-05 17:15

Updated : 2024-11-21 05:57

NVD link : CVE-2021-27098

Mitre link : CVE-2021-27098

CVE.ORG link : CVE-2021-27098

JSON object : View

Products Affected

cncf

spire

CWE

CWE-295

Improper Certificate Validation

{"id": "CVE-2021-27098", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:N", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 4.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.8}]}, "published": "2021-03-05T17:15:14.920", "references": [{"url": "https://github.com/spiffe/spire/security/advisories/GHSA-h746-rm5q-8mgq", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/spiffe/spire/security/advisories/GHSA-h746-rm5q-8mgq", "tags": ["Third Party 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": "In SPIRE 0.8.1 through 0.8.4 and before versions 0.9.4, 0.10.2, 0.11.3 and 0.12.1, specially crafted requests to the FetchX509SVID RPC of SPIRE Server\u2019s Legacy Node API can result in the possible issuance of an X.509 certificate with a URI SAN for a SPIFFE ID that the agent is not authorized to distribute. Proper controls are in place to require that the caller presents a valid agent certificate that is already authorized to issue at least one SPIFFE ID, and the requested SPIFFE ID belongs to the same trust domain, prior to being able to trigger this vulnerability. This issue has been fixed in SPIRE versions 0.8.5, 0.9.4, 0.10.2, 0.11.3 and 0.12.1."}, {"lang": "es", "value": "En SPIRE versiones 0.8.1 hasta 0.8.4 y versiones anteriores a 0.9.4, 0.10.2, 0.11.3 y 0.12.1, unas peticiones especialmente dise\u00f1adas para FetchX509SVID RPC de la API del Legacy Node de SPIRE Server, pueden resultar en una posible emisi\u00f3n de un Certificado X.509 con un URI SAN para un ID de SPIFFE que el agente no est\u00e1 autorizado a distribuir. Se presentan controles apropiados para requerir que la persona que llama presente un certificado de agente v\u00e1lido que ya est\u00e9 autorizado para emitir al menos un ID de SPIFFE, y que el ID de SPIFFE pedido pertenezca al mismo dominio confiable, antes de poder desencadenar esta vulnerabilidad. Este problema ha sido corregido en versiones 0.8.5, 0.9.4, 0.10.2, 0.11.3 y 0.12.1 de SPIRE"}], "lastModified": "2024-11-21T05:57:20.830", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cncf:spire:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "53FC0C26-EC3F-45EE-ADAC-FC283813FBE1", "versionEndIncluding": "0.8.4", "versionStartIncluding": "0.8.1"}, {"criteria": "cpe:2.3:a:cncf:spire:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E7436751-C627-4143-A890-8B04D9C6642D", "versionEndExcluding": "0.9.4", "versionStartIncluding": "0.9.0"}, {"criteria": "cpe:2.3:a:cncf:spire:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E330A728-6B22-4C71-B37A-119BD2D3EADB", "versionEndExcluding": "0.10.2", "versionStartIncluding": "0.10.0"}, {"criteria": "cpe:2.3:a:cncf:spire:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EA57458D-53C5-4E8D-AFC2-D56826904304", "versionEndExcluding": "0.11.3", "versionStartIncluding": "0.11.0"}, {"criteria": "cpe:2.3:a:cncf:spire:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F05F1090-6FFC-4C74-B9D3-D63B3259A46A", "versionEndExcluding": "0.12.1", "versionStartIncluding": "0.12.0"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}