CVE-2020-35470

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*", "matchCriteriaId": "49543588-1B38-4406-AE61-5414E7CD6B4B", "versionEndExcluding": "1.16.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Envoy before 1.16.1 logs an incorrect downstream address because it considers only the directly connected peer, not the information in the proxy protocol header. This affects situations with tcp-proxy as the network filter (not HTTP filters)."}, {"lang": "es", "value": "Envoy versiones anteriores a 1.16.1, registra una direcci\u00f3n posterior incorrecta porque considera solo al peer conectado directamente, no la informaci\u00f3n en el encabezado proxy protocol. Esto afecta situaciones con tcp-proxy como filtro de red (no filtros HTTP)"}], "id": "CVE-2020-35470", "lastModified": "2026-06-17T03:13:45.970", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "ADJACENT_NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:A/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 6.5, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-12-15T01:15:13.807", "references": [{"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/envoyproxy/envoy/compare/v1.16.0...v1.16.1"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/envoyproxy/envoy/issues/14087"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/envoyproxy/envoy/pull/14131"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/envoyproxy/envoy/compare/v1.16.0...v1.16.1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/envoyproxy/envoy/issues/14087"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/envoyproxy/envoy/pull/14131"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "envoy: logs incorrect downstream address making it possible to bypass the RBAC policy", "id": "1907805", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1907805"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.8", "cvss3_scoring_vector": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-284", "details": ["Envoy before 1.16.1 logs an incorrect downstream address because it considers only the directly connected peer, not the information in the proxy protocol header. This affects situations with tcp-proxy as the network filter (not HTTP filters)."], "name": "CVE-2020-35470", "package_state": [{"cpe": "cpe:/a:redhat:service_mesh:1", "fix_state": "Not affected", "package_name": "servicemesh-proxy", "product_name": "OpenShift Service Mesh 1"}, {"cpe": "cpe:/a:redhat:service_mesh:2.0", "fix_state": "Not affected", "package_name": "servicemesh-proxy", "product_name": "OpenShift Service Mesh 2.0"}], "public_date": "2020-11-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-35470\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-35470\nhttps://github.com/envoyproxy/envoy/issues/14087"], "threat_severity": "Moderate"}

{}