CVE-2022-21190

{"id": "CVE-2022-21190", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "report@snyk.io", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2022-05-13T20:15:08.013", "references": [{"url": "https://gist.github.com/dellalibera/cebce20e51410acebff1f46afdc89808", "tags": ["Exploit", "Third Party Advisory"], "source": "report@snyk.io"}, {"url": "https://github.com/mozilla/node-convict/blob/3b86be087d8f14681a9c889d45da7fe3ad9cd880/packages/convict/src/main.js%23L571", "tags": ["Broken Link", "Patch", "Third Party Advisory"], "source": "report@snyk.io"}, {"url": "https://github.com/mozilla/node-convict/blob/master/CHANGELOG.md%23623---2022-05-07", "tags": ["Broken Link", "Release Notes", "Tool Signature"], "source": "report@snyk.io"}, {"url": "https://github.com/mozilla/node-convict/commit/1ea0ab19c5208f66509e1c43b0d0f21c1fd29b75", "tags": ["Patch", "Tool Signature"], "source": "report@snyk.io"}, {"url": "https://snyk.io/vuln/SNYK-JS-CONVICT-2774757", "tags": ["Exploit", "Third Party Advisory"], "source": "report@snyk.io"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-1321"}]}], "descriptions": [{"lang": "en", "value": "This affects the package convict before 6.2.3. This is a bypass of [CVE-2022-22143](https://security.snyk.io/vuln/SNYK-JS-CONVICT-2340604). The [fix](https://github.com/mozilla/node-convict/commit/3b86be087d8f14681a9c889d45da7fe3ad9cd880) introduced, relies on the startsWith method and does not prevent the vulnerability: before splitting the path, it checks if it starts with __proto__ or this.constructor.prototype. To bypass this check it's possible to prepend the dangerous paths with any string value followed by a dot, like for example foo.__proto__ or foo.this.constructor.prototype."}, {"lang": "es", "value": "Esto afecta al paquete convict versiones anteriores a 6.2.3. Esto es una omisi\u00f3n de [CVE-2022-22143](https://security.snyk.io/vuln/SNYK-JS-CONVICT-2340604). La [fix](https://github.com/mozilla/node-convict/commit/3b86be087d8f14681a9c889d45da7fe3ad9cd880) introducida, esta basada en el m\u00e9todo startsWith y no impide la vulnerabilidad: antes de dividir la ruta, comprueba si comienza con __proto__ o this.constructor.prototype. Para impider esta comprobaci\u00f3n es posible anteponer a las rutas peligrosas cualquier valor de cadena seguido de un punto, como por ejemplo foo.__proto__ o foo.this.constructor.prototype"}], "lastModified": "2022-05-24T14:11:33.373", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:convict:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "255ADFF4-3826-4C4D-AD80-FA83F171E3C4", "versionEndExcluding": "6.2.3"}], "operator": "OR"}]}], "sourceIdentifier": "report@snyk.io"}