CVE-2021-39195

{"id": "CVE-2021-39195", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N", "authentication": "SINGLE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.8}, {"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.7, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 4.0, "exploitabilityScore": 3.1}]}, "published": "2021-09-07T19:15:08.600", "references": [{"url": "https://github.com/misskey-dev/misskey/blob/develop/CHANGELOG.md#12900-20210904", "tags": ["Release Notes", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/misskey-dev/misskey/commit/e1a8b158e04ad567d92d8daf3cc0898ee18f1a2e", "tags": ["Patch", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/misskey-dev/misskey/security/advisories/GHSA-mqv7-gxh4-r5vf", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-918"}]}], "descriptions": [{"lang": "en", "value": "Misskey is an open source, decentralized microblogging platform. In affected versions a Server-Side Request Forgery vulnerability exists in \"Upload from URL\" and remote attachment handling. This could result in the disclosure of non-public information within the internal network. This has been fixed in 12.90.0. However, if you are using a proxy, you will need to take additional measures. As a workaround this exploit may be avoided by appropriately restricting access to private networks from the host where the application is running."}, {"lang": "es", "value": "Misskey es una plataforma de microblogging descentralizada de c\u00f3digo abierto. En las versiones afectadas se presenta una vulnerabilidad de tipo Server-Side Request Forgery en el manejo de \"Upload from URL\" y archivos adjuntos remotos. Esto podr\u00eda resultar en una divulgaci\u00f3n de informaci\u00f3n no p\u00fablica dentro de la red interna. Esto es corregido en versi\u00f3n 12.90.0. Sin embargo, si esta usando un proxy, necesitar\u00e1 tomar medidas adicionales. Como soluci\u00f3n alternativa, este problema puede ser evitado restringiendo apropiadamente el acceso a las redes privadas desde el host donde se ejecuta la aplicaci\u00f3n"}], "lastModified": "2021-09-14T16:20:41.183", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:misskey:misskey:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0A2733AC-B327-4BA4-92A0-735E36B8ED7B", "versionEndExcluding": "12.90.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}