CVE-2021-21250

{"id": "CVE-2021-21250", "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": "2021-01-15T21:15:13.803", "references": [{"url": "https://github.com/theonedev/onedev/commit/9196fd795e87dab069b4260a3590a0ea886e770f", "tags": ["Patch", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/theonedev/onedev/security/advisories/GHSA-9pph-8gfc-6w2r", "tags": ["Third Party Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-538"}]}], "descriptions": [{"lang": "en", "value": "OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, there is a critical vulnerability which may lead to arbitrary file read. When BuildSpec is provided in XML format, the spec is processed by XmlBuildSpecMigrator.migrate(buildSpecString); which processes the XML document without preventing the expansion of external entities. These entities can be configured to read arbitrary files from the file system and dump their contents in the final XML document to be migrated. If the files are dumped in properties included in the YAML file, it will be possible for an attacker to read them. If not, it is possible for an attacker to exfiltrate the contents of these files Out Of Band. This issue was addressed in 4.0.3 by ignoring ENTITY instructions in xml file."}, {"lang": "es", "value": "OneDev es una plataforma devops todo en uno. En OneDev versiones anteriores a 4.0.3, Se presenta una vulnerabilidad cr\u00edtica que puede conllevar a una lectura arbitraria de archivos. Cuando BuildSpec se proporciona en formato XML, XmlBuildSpecMigrator.migrate (buildSpecString) procesa la especificaci\u00f3n; que procesa el documento XML sin evitar la expansi\u00f3n de entidades externas. Estas entidades se pueden configurar para leer archivos arbitrarios del sistema de archivos y volcar su contenido en el documento XML final que se migrar\u00e1. Si los archivos se vuelcan en propiedades incluidas en el archivo YAML, un atacante podr\u00e1 leerlos. Si no es as\u00ed, es posible a un atacante exfiltre el contenido de estos archivos Fuera de la Banda. Este problema es corregido en versi\u00f3n 4.0.3 ignorando las instrucciones de ENTITY en el archivo xml"}], "lastModified": "2021-01-21T14:28:39.967", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:onedev_project:onedev:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5287F01C-3A77-4491-AB49-401A50FAA6E9", "versionEndExcluding": "4.0.3"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}