CVE-2022-21656
Vulnerability from cvelistv5
Published
2022-02-22 22:25
Modified
2024-08-03 02:46
Severity ?
EPSS score ?
Summary
X.509 subjectAltName matching bypass in Envoy
References
▼ | URL | Tags | |
---|---|---|---|
security-advisories@github.com | https://github.com/envoyproxy/envoy/commit/bb95af848c939cfe5b5ee33c5b1770558077e64e | Patch, Third Party Advisory | |
security-advisories@github.com | https://github.com/envoyproxy/envoy/security/advisories/GHSA-c9g7-xwcv-pjx2 | Issue Tracking, Third Party Advisory |
Impacted products
▼ | Vendor | Product |
---|---|---|
envoyproxy | envoy |
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This processing allows, for example, an rfc822Name or uniformResourceIndicator to be authenticated as a domain name. This confusion allows for the bypassing of nameConstraints, as processed by the underlying OpenSSL/BoringSSL implementation, exposing the possibility of impersonation of arbitrary servers. As a result Envoy will trust upstream certificates that should not be trusted." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-295", "description": "CWE-295: Improper Certificate Validation", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2022-02-22T22:25:11", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M" }, "references": [ { "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-c9g7-xwcv-pjx2" }, { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/envoyproxy/envoy/commit/bb95af848c939cfe5b5ee33c5b1770558077e64e" } ], "source": { "advisory": "GHSA-c9g7-xwcv-pjx2", "discovery": "UNKNOWN" }, "title": "X.509 subjectAltName matching bypass in Envoy", "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "security-advisories@github.com", "ID": "CVE-2022-21656", "STATE": "PUBLIC", "TITLE": "X.509 subjectAltName matching bypass in Envoy" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "envoy", "version": { "version_data": [ { "version_value": "\u003c 1.20.2" } ] } } ] }, "vendor_name": "envoyproxy" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "Envoy is an open source edge and service proxy, designed for cloud-native applications. 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The default_validator.cc implementation used to implement the default certificate validation routines has a \\\"type confusion\\\" bug when processing subjectAltNames. This processing allows, for example, an rfc822Name or uniformResourceIndicator to be authenticated as a domain name. This confusion allows for the bypassing of nameConstraints, as processed by the underlying OpenSSL/BoringSSL implementation, exposing the possibility of impersonation of arbitrary servers. As a result Envoy will trust upstream certificates that should not be trusted.\"},{\"lang\":\"es\",\"value\":\"Envoy es un proxy de borde y servicio de c\u00f3digo abierto, dise\u00f1ado para aplicaciones nativas de la nube. La implementaci\u00f3n default_validator.cc usada para implementar las rutinas de comprobaci\u00f3n de certificados por defecto presenta un error de \\\"confusi\u00f3n de tipo\\\" cuando procesa subjectAltNames. Este procesamiento permite, por ejemplo, que un rfc822Name o uniformResourceIndicator sea autenticado como un nombre de dominio. Esta confusi\u00f3n permite omitir nameConstraints, tal y como lo procesa la implementaci\u00f3n subyacente de OpenSSL/BoringSSL, exponiendo la posibilidad de suplantaci\u00f3n de servidores arbitrarios. 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Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.