{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-27496", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2023-03-01T19:03:56.635Z", "datePublished": "2023-04-04T19:48:56.678Z", "dateUpdated": "2025-02-10T21:34:14.824Z"}, "containers": {"cna": {"title": "Envoy may crash when a redirect url without a state param is received in the oauth filter", "problemTypes": [{"descriptions": [{"cweId": "CWE-20", "lang": "en", "description": "CWE-20: Improper Input Validation", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-j79q-2g66-2xv5", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-j79q-2g66-2xv5"}], "affected": [{"vendor": "envoyproxy", "product": "envoy", "versions": [{"version": ">= 1.25.0, < 1.25.3", "status": "affected"}, {"version": ">= 1.24.0, < 1.24.4", "status": "affected"}, {"version": ">= 1.23.0, < 1.23.6", "status": "affected"}, {"version": "< 1.22.9", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2023-04-04T19:48:56.678Z"}, "descriptions": [{"lang": "en", "value": "Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, the OAuth filter assumes that a `state` query param is present on any response that looks like an OAuth redirect response. Sending it a request with the URI path equivalent to the redirect path, without the `state` parameter, will lead to abnormal termination of Envoy process. Versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9 contain a patch. The issue can also be mitigated by locking down OAuth traffic, disabling the filter, or by filtering traffic before it reaches the OAuth filter (e.g. via a lua script). \n"}], "source": {"advisory": "GHSA-j79q-2g66-2xv5", "discovery": "UNKNOWN"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T12:16:35.397Z"}, "title": "CVE Program Container", "references": [{"name": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-j79q-2g66-2xv5", "tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-j79q-2g66-2xv5"}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-02-10T21:34:11.044829Z", "id": "CVE-2023-27496", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-02-10T21:34:14.824Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-j79q-2g66-2xv5", "name": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-j79q-2g66-2xv5", "tags": ["x_refsource_CONFIRM", "x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T12:16:35.397Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-27496", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-02-10T21:34:11.044829Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-02-10T21:33:20.525Z"}}], "cna": {"title": "Envoy may crash when a redirect url without a state param is received in the oauth filter", "source": {"advisory": "GHSA-j79q-2g66-2xv5", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}], "affected": [{"vendor": "envoyproxy", "product": "envoy", "versions": [{"status": "affected", "version": ">= 1.25.0, < 1.25.3"}, {"status": "affected", "version": ">= 1.24.0, < 1.24.4"}, {"status": "affected", "version": ">= 1.23.0, < 1.23.6"}, {"status": "affected", "version": "< 1.22.9"}]}], "references": [{"url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-j79q-2g66-2xv5", "name": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-j79q-2g66-2xv5", "tags": ["x_refsource_CONFIRM"]}], "descriptions": [{"lang": "en", "value": "Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, the OAuth filter assumes that a `state` query param is present on any response that looks like an OAuth redirect response. Sending it a request with the URI path equivalent to the redirect path, without the `state` parameter, will lead to abnormal termination of Envoy process. Versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9 contain a patch. The issue can also be mitigated by locking down OAuth traffic, disabling the filter, or by filtering traffic before it reaches the OAuth filter (e.g. via a lua script). \n"}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-20", "description": "CWE-20: Improper Input Validation"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2023-04-04T19:48:56.678Z"}}}, "cveMetadata": {"cveId": "CVE-2023-27496", "state": "PUBLISHED", "dateUpdated": "2025-02-10T21:34:14.824Z", "dateReserved": "2023-03-01T19:03:56.635Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2023-04-04T19:48:56.678Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*", "matchCriteriaId": "DAD93214-C958-4A69-9291-15D1C22CFD3F", "versionEndExcluding": "1.22.9", "vulnerable": true}, {"criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*", "matchCriteriaId": "17BFB303-DA5A-4E83-93F7-3C1EA340E434", "versionEndExcluding": "1.23.6", "versionStartIncluding": "1.23.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*", "matchCriteriaId": "92B633B8-FA4A-4630-9302-96F2C8336E36", "versionEndExcluding": "1.24.4", "versionStartIncluding": "1.24.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*", "matchCriteriaId": "8AFC6741-6FDF-47F6-A4AF-B5F5233ABB71", "versionEndExcluding": "1.25.3", "versionStartIncluding": "1.25.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, the OAuth filter assumes that a `state` query param is present on any response that looks like an OAuth redirect response. Sending it a request with the URI path equivalent to the redirect path, without the `state` parameter, will lead to abnormal termination of Envoy process. Versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9 contain a patch. The issue can also be mitigated by locking down OAuth traffic, disabling the filter, or by filtering traffic before it reaches the OAuth filter (e.g. via a lua script). \n"}], "id": "CVE-2023-27496", "lastModified": "2024-11-21T07:53:01.487", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2023-04-04T20:15:07.520", "references": [{"source": "security-advisories@github.com", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-j79q-2g66-2xv5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-j79q-2g66-2xv5"}], "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"}]}

{"affected_release": [{"advisory": "RHSA-2023:4623", "cpe": "cpe:/a:redhat:service_mesh:2.2::el8", "package": "openshift-service-mesh/proxyv2-rhel8:2.2.9-2", "product_name": "Red Hat OpenShift Service Mesh 2.2 for RHEL 8", "release_date": "2023-08-11T00:00:00Z"}], "bugzilla": {"description": "envoy: Crash when a redirect url without a state param is received in the oauth filter", "id": "2182155", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2182155"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "status": "verified"}, "details": ["Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, the OAuth filter assumes that a `state` query param is present on any response that looks like an OAuth redirect response. Sending it a request with the URI path equivalent to the redirect path, without the `state` parameter, will lead to abnormal termination of Envoy process. Versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9 contain a patch. The issue can also be mitigated by locking down OAuth traffic, disabling the filter, or by filtering traffic before it reaches the OAuth filter (e.g. via a lua script).", "A flaw was found in Envoy. If Envoy is running with the OAuth filter enabled, a malicious actor could construct a request which would cause denial of service, crashing Envoy."], "name": "CVE-2023-27496", "package_state": [{"cpe": "cpe:/a:redhat:service_mesh:2.1", "fix_state": "Will not fix", "package_name": "servicemesh-proxy", "product_name": "OpenShift Service Mesh 2.1"}], "public_date": "2023-04-04T19:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-27496\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-27496"], "threat_severity": "Moderate"}