{"dataType": "CVE_RECORD", "dataVersion": "5.0", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2021-25748", "assignerOrgId": "a6081bf6-c852-4425-ad4f-a67919267565", "assignerShortName": "kubernetes", "dateUpdated": "2023-05-24T00:00:00", "dateReserved": "2021-01-21T00:00:00", "datePublished": "2023-05-24T00:00:00"}, "containers": {"cna": {"title": "Ingress-nginx `path` sanitization can be bypassed with newline character", "datePublic": "2022-06-10T00:00:00", "providerMetadata": {"orgId": "a6081bf6-c852-4425-ad4f-a67919267565", "shortName": "kubernetes", "dateUpdated": "2023-05-24T00:00:00"}, "descriptions": [{"lang": "en", "value": "A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use a newline character to bypass the sanitization of the `spec.rules[].http.paths[].path` field of an Ingress object (in the `networking.k8s.io` or `extensions` API group) to obtain the credentials of the ingress-nginx controller. In the default configuration, that credential has access to all secrets in the cluster."}], "affected": [{"vendor": "Kubernetes", "product": "Kubernetes ingress-nginx", "versions": [{"version": "unspecified", "lessThan": "1.2.1", "status": "affected", "versionType": "custom"}]}], "references": [{"url": "https://groups.google.com/g/kubernetes-security-announce/c/avaRYa9c7I8"}, {"url": "https://github.com/kubernetes/ingress-nginx/issues/8686"}], "credits": [{"lang": "en", "value": "Gafnit Amiga"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "availabilityImpact": "LOW", "baseScore": 7.6, "baseSeverity": "HIGH"}}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "description": "CWE-20: Improper Input Validation", "cweId": "CWE-20"}]}], "x_generator": {"engine": "Vulnogram 0.0.9"}, "source": {"defect": ["https://github.com/kubernetes/ingress-nginx/issues/8686"], "discovery": "EXTERNAL"}}}}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:kubernetes:ingress-nginx:*:*:*:*:*:*:*:*", "matchCriteriaId": "E43BDC85-F198-4126-B487-21F6C3667561", "versionEndExcluding": "1.2.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use a newline character to bypass the sanitization of the `spec.rules[].http.paths[].path` field of an Ingress object (in the `networking.k8s.io` or `extensions` API group) to obtain the credentials of the ingress-nginx controller. In the default configuration, that credential has access to all secrets in the cluster."}], "id": "CVE-2021-25748", "lastModified": "2023-06-01T20:44:14.080", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.6, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 4.7, "source": "jordan@liggitt.net", "type": "Secondary"}]}, "published": "2023-05-24T17:15:09.253", "references": [{"source": "jordan@liggitt.net", "tags": ["Issue Tracking", "Mitigation", "Vendor Advisory"], "url": "https://github.com/kubernetes/ingress-nginx/issues/8686"}, {"source": "jordan@liggitt.net", "tags": ["Mailing List", "Mitigation", "Vendor Advisory"], "url": "https://groups.google.com/g/kubernetes-security-announce/c/avaRYa9c7I8"}], "sourceIdentifier": "jordan@liggitt.net", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-20"}], "source": "jordan@liggitt.net", "type": "Secondary"}]}

{}