CVE-2021-23406

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{"affected": [{"affectedData": [{"product": "pac-resolver", "vendor": "n/a", "versions": [{"lessThan": "5.0.0", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "report@snyk.io"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:pac-resolver_project:pac-resolver:*:*:*:*:*:node.js:*:*", "matchCriteriaId": "7F43E597-369F-4116-B2CF-25FE6286C6B5", "versionEndExcluding": "5.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "This affects the package pac-resolver before 5.0.0. This can occur when used with untrusted input, due to unsafe PAC file handling. **NOTE:** The fix for this vulnerability is applied in the node-degenerator library, a dependency written by the same maintainer."}, {"lang": "es", "value": "Esto afecta al paquete pac-resolver versiones anteriores a 5.0.0.&#xa0;Esto puede ocurrir cuando se usa con una entrada no confiable debido a un manejo no seguro de archivos PAC.&#xa0;**NOTA:** La correcci\u00f3n para esta vulnerabilidad se aplica en la biblioteca degenerador de nodos, una dependencia escrita por el mismo mantenedor"}], "id": "CVE-2021-23406", "lastModified": "2026-06-17T03:38:42.293", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 5.9, "source": "report@snyk.io", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-08-24T08:15:18.180", "references": [{"source": "report@snyk.io", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/TooTallNate/node-degenerator/commit/9d25bb67d957bc2e5425fea7bf7a58b3fc64ff9e"}, {"source": "report@snyk.io", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/TooTallNate/node-degenerator/commit/ccc3445354135398b6eb1a04c7d27c13b833f2d5"}, {"source": "report@snyk.io", "tags": ["Patch", "Release Notes", "Third Party Advisory"], "url": "https://github.com/TooTallNate/node-pac-resolver/releases/tag/5.0.0"}, {"source": "report@snyk.io", "tags": ["Exploit", "Patch", "Third Party Advisory"], "url": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1568506"}, {"source": "report@snyk.io", "tags": ["Exploit", "Patch", "Third Party Advisory"], "url": "https://snyk.io/vuln/SNYK-JS-PACRESOLVER-1564857"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/TooTallNate/node-degenerator/commit/9d25bb67d957bc2e5425fea7bf7a58b3fc64ff9e"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/TooTallNate/node-degenerator/commit/ccc3445354135398b6eb1a04c7d27c13b833f2d5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Release Notes", "Third Party Advisory"], "url": "https://github.com/TooTallNate/node-pac-resolver/releases/tag/5.0.0"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Patch", "Third Party Advisory"], "url": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1568506"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Patch", "Third Party Advisory"], "url": "https://snyk.io/vuln/SNYK-JS-PACRESOLVER-1564857"}], "sourceIdentifier": "report@snyk.io", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "nodejs-pac-resolver: remote code execution when used with untrusted input due to unsafe PAC file handling", "id": "1998236", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1998236"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-94", "details": ["This affects the package pac-resolver before 5.0.0. This can occur when used with untrusted input, due to unsafe PAC file handling. **NOTE:** The fix for this vulnerability is applied in the node-degenerator library, a dependency written by the same maintainer.", "A flaw was found in nodejs-pac-resolver. A remote code execution can occur with untrusted input, due to unsafe PAC file handling. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability."], "name": "CVE-2021-23406", "package_state": [{"cpe": "cpe:/a:redhat:acm:2", "fix_state": "Fix deferred", "impact": "low", "package_name": "rhacm2/application-ui-rhel8", "product_name": "Red Hat Advanced Cluster Management for Kubernetes 2"}, {"cpe": "cpe:/a:redhat:acm:2", "fix_state": "Not affected", "impact": "low", "package_name": "rhacm2/console-header-rhel8", "product_name": "Red Hat Advanced Cluster Management for Kubernetes 2"}, {"cpe": "cpe:/a:redhat:acm:2", "fix_state": "Not affected", "impact": "moderate", "package_name": "rhacm2/grc-ui-rhel8", "product_name": "Red Hat Advanced Cluster Management for Kubernetes 2"}, {"cpe": "cpe:/a:redhat:acm:2", "fix_state": "Not affected", "impact": "low", "package_name": "rhacm2/mcm-topology-rhel8", "product_name": "Red Hat Advanced Cluster Management for Kubernetes 2"}], "public_date": "2021-08-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-23406\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-23406\nhttps://github.com/TooTallNate/node-degenerator/commit/9d25bb67d957bc2e5425fea7bf7a58b3fc64ff9e\nhttps://github.com/TooTallNate/node-degenerator/commit/ccc3445354135398b6eb1a04c7d27c13b833f2d5\nhttps://snyk.io/vuln/SNYK-JS-PACRESOLVER-1564857"], "statement": "The Red Hat Advanced Cluster Management for Kubernetes ships with the vulnerable component. We are currently not aware of the vector to trigger the vulnerability in the affected component, furthermore the affected component is protected by user authentication lowering the potential impact of this vulnerability.", "threat_severity": "Important"}

{}