{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-35944", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2023-06-20T14:02:45.597Z", "datePublished": "2023-07-25T18:35:59.135Z", "dateUpdated": "2024-10-23T20:18:42.493Z"}, "containers": {"cna": {"title": "Envoy vulnerable to incorrect handling of HTTP requests and responses with mixed case schemes", "problemTypes": [{"descriptions": [{"cweId": "CWE-20", "lang": "en", "description": "CWE-20: Improper Input Validation", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-pvgm-7jpg-pw5g", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-pvgm-7jpg-pw5g"}], "affected": [{"vendor": "envoyproxy", "product": "envoy", "versions": [{"version": ">= 1.26.0, < 1.26.4", "status": "affected"}, {"version": ">= 1.25.0, < 1.25.9", "status": "affected"}, {"version": ">= 1.24.0, < 1.24.10", "status": "affected"}, {"version": "< 1.23.12", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2023-07-25T18:35:59.135Z"}, "descriptions": [{"lang": "en", "value": "Envoy is an open source edge and service proxy designed for cloud-native applications. Envoy allows mixed-case schemes in HTTP/2, however, some internal scheme checks are case-sensitive. Prior to versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, this can lead to the rejection of requests with mixed-case schemes such as `htTp` or `htTps`, or the bypassing of some requests such as `https` in unencrypted connections. With a fix in versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, Envoy will now lowercase scheme values by default, and change the internal scheme checks that were case-sensitive to be case-insensitive. There are no known workarounds for this issue."}], "source": {"advisory": "GHSA-pvgm-7jpg-pw5g", "discovery": "UNKNOWN"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T16:37:40.606Z"}, "title": "CVE Program Container", "references": [{"name": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-pvgm-7jpg-pw5g", "tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-pvgm-7jpg-pw5g"}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-10-23T20:18:05.086028Z", "id": "CVE-2023-35944", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-23T20:18:42.493Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-pvgm-7jpg-pw5g", "name": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-pvgm-7jpg-pw5g", "tags": ["x_refsource_CONFIRM", "x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T16:37:40.606Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-35944", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2024-10-23T20:18:05.086028Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-23T20:18:26.127Z"}}], "cna": {"title": "Envoy vulnerable to incorrect handling of HTTP requests and responses with mixed case schemes", "source": {"advisory": "GHSA-pvgm-7jpg-pw5g", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "envoyproxy", "product": "envoy", "versions": [{"status": "affected", "version": ">= 1.26.0, < 1.26.4"}, {"status": "affected", "version": ">= 1.25.0, < 1.25.9"}, {"status": "affected", "version": ">= 1.24.0, < 1.24.10"}, {"status": "affected", "version": "< 1.23.12"}]}], "references": [{"url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-pvgm-7jpg-pw5g", "name": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-pvgm-7jpg-pw5g", "tags": ["x_refsource_CONFIRM"]}], "descriptions": [{"lang": "en", "value": "Envoy is an open source edge and service proxy designed for cloud-native applications. Envoy allows mixed-case schemes in HTTP/2, however, some internal scheme checks are case-sensitive. Prior to versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, this can lead to the rejection of requests with mixed-case schemes such as `htTp` or `htTps`, or the bypassing of some requests such as `https` in unencrypted connections. With a fix in versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, Envoy will now lowercase scheme values by default, and change the internal scheme checks that were case-sensitive to be case-insensitive. There are no known workarounds for this issue."}], "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": "2023-07-25T18:35:59.135Z"}}}, "cveMetadata": {"cveId": "CVE-2023-35944", "state": "PUBLISHED", "dateUpdated": "2024-10-23T20:18:42.493Z", "dateReserved": "2023-06-20T14:02:45.597Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2023-07-25T18:35:59.135Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*", "matchCriteriaId": "588736F6-2FDC-4CF7-AFFA-7CFE16ED6EC6", "versionEndExcluding": "1.23.12", "versionStartIncluding": "1.23.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*", "matchCriteriaId": "D8412E60-1C2F-4764-94F5-563FAA297466", "versionEndExcluding": "1.24.10", "versionStartIncluding": "1.24.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*", "matchCriteriaId": "0EC8FEB8-BB13-443C-8905-30B03F8F52E6", "versionEndExcluding": "1.25.9", "versionStartIncluding": "1.25.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*", "matchCriteriaId": "DA35F763-2810-4231-B5A9-93310BF7B765", "versionEndExcluding": "1.26.4", "versionStartIncluding": "1.26.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "Envoy is an open source edge and service proxy designed for cloud-native applications. Envoy allows mixed-case schemes in HTTP/2, however, some internal scheme checks are case-sensitive. Prior to versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, this can lead to the rejection of requests with mixed-case schemes such as `htTp` or `htTps`, or the bypassing of some requests such as `https` in unencrypted connections. With a fix in versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, Envoy will now lowercase scheme values by default, and change the internal scheme checks that were case-sensitive to be case-insensitive. There are no known workarounds for this issue."}], "id": "CVE-2023-35944", "lastModified": "2024-11-21T08:09:01.713", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.2, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2023-07-25T19:15:11.240", "references": [{"source": "security-advisories@github.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-pvgm-7jpg-pw5g"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-pvgm-7jpg-pw5g"}], "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": "CWE-444"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2023:5175", "cpe": "cpe:/a:redhat:service_mesh:2.2::el8", "package": "openshift-service-mesh/proxyv2-rhel8:2.2.10-3", "product_name": "Red Hat OpenShift Service Mesh 2.2 for RHEL 8", "release_date": "2023-09-14T00:00:00Z"}, {"advisory": "RHSA-2023:4624", "cpe": "cpe:/a:redhat:service_mesh:2.3::el8", "package": "openshift-service-mesh/proxyv2-rhel8:2.3.6-4", "product_name": "Red Hat OpenShift Service Mesh 2.3 for RHEL 8", "release_date": "2023-08-11T00:00:00Z"}, {"advisory": "RHSA-2023:4625", "cpe": "cpe:/a:redhat:service_mesh:2.4::el8", "package": "openshift-service-mesh/proxyv2-rhel8:2.4.2-7", "product_name": "Red Hat OpenShift Service Mesh 2.4 for RHEL 8", "release_date": "2023-08-11T00:00:00Z"}], "bugzilla": {"description": "envoy: Incorrect handling of HTTP requests and responses with mixed case schemes", "id": "2217985", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2217985"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.2", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N", "status": "verified"}, "cwe": "CWE-178", "details": ["Envoy is an open source edge and service proxy designed for cloud-native applications. Envoy allows mixed-case schemes in HTTP/2, however, some internal scheme checks are case-sensitive. Prior to versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, this can lead to the rejection of requests with mixed-case schemes such as `htTp` or `htTps`, or the bypassing of some requests such as `https` in unencrypted connections. With a fix in versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, Envoy will now lowercase scheme values by default, and change the internal scheme checks that were case-sensitive to be case-insensitive. There are no known workarounds for this issue.", "A flaw was found in Envoy that allows for mixed-case schemes in HTTP/2. However, some internal scheme checks in Envoy are case-sensitive, leading to incorrect handling of requests and responses with mixed case schemes. For example, if a request with a mixed scheme HTTP is sent to the OAuth2 filter, it will fail the exact-match checks for HTTP and inform the remote endpoint the scheme is HTTP, thus potentially bypassing OAuth2 checks specific to HTTP requests."], "name": "CVE-2023-35944", "public_date": "2023-07-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-35944\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-35944"], "threat_severity": "Important"}