CVE-2024-23324

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External authentication can be bypassed by downstream connections. Downstream clients can force invalid gRPC requests to be sent to ext_authz, circumventing ext_authz checks when failure_mode_allow is set to true. This issue has been addressed in released 1.29.1, 1.28.1, 1.27.3, and 1.26.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.\n"}, {"lang": "es", "value": "Envoy es un proxy de servicio/intermedio/perimetral de alto rendimiento. La autenticaci\u00f3n externa se puede omitir mediante conexiones descendentes. Los clientes intermedios pueden forzar el env\u00edo de solicitudes gRPC no v\u00e1lidas a ext_authz, eludiendo las comprobaciones de ext_authz cuando Failure_mode_allow se establece en verdadero. Este problema se solucion\u00f3 en las versiones 1.29.1, 1.28.1, 1.27.3 y 1.26.7. Se recomienda a los usuarios que actualicen. No se conocen workarounds para esta vulnerabilidad."}], "id": "CVE-2024-23324", "lastModified": "2026-06-17T07:12:35.810", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.0, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-23324", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-08-19T16:10:39.029109Z", "version": "2.0.3"}}]}, "published": "2024-02-09T23:15:09.223", "references": [{"source": "security-advisories@github.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://github.com/envoyproxy/envoy/commit/29989f6cc8bfd8cd2ffcb7c42711eb02c7a5168a"}, {"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-gq3v-vvhj-96j6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://github.com/envoyproxy/envoy/commit/29989f6cc8bfd8cd2ffcb7c42711eb02c7a5168a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-gq3v-vvhj-96j6"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "envoy: Ext auth can be bypassed when Proxy protocol filter sets invalid UTF-8 metadata", "id": "2259231", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2259231"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "status": "draft"}, "cwe": "CWE-20", "details": ["Envoy is a high-performance edge/middle/service proxy. External authentication can be bypassed by downstream connections. Downstream clients can force invalid gRPC requests to be sent to ext_authz, circumventing ext_authz checks when failure_mode_allow is set to true. This issue has been addressed in released 1.29.1, 1.28.1, 1.27.3, and 1.26.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.", "A flaw was found in the Envoy proxy. External authentication can be bypassed by downstream connections that use the PROXY protocol. Downstream clients can force invalid gRPC requests to send to ext_authz, circumventing ext_authz checks when failure_mode_allow is set to true."], "name": "CVE-2024-23324", "package_state": [{"cpe": "cpe:/a:redhat:service_mesh:2", "fix_state": "Affected", "package_name": "openshift-service-mesh/proxyv2-rhel8", "product_name": "OpenShift Service Mesh 2"}, {"cpe": "cpe:/a:redhat:service_mesh:2", "fix_state": "Affected", "package_name": "servicemesh-proxy", "product_name": "OpenShift Service Mesh 2"}], "public_date": "2024-02-09T17:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-23324\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-23324\nhttps://github.com/envoyproxy/envoy/security/advisories/GHSA-gq3v-vvhj-96j6"], "threat_severity": "Important"}

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