CVE-2021-32825

{"id": "CVE-2021-32825", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:N", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 4.9, "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": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 2.7, "attackVector": "LOCAL", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 1.0}]}, "published": "2021-08-16T19:15:14.207", "references": [{"url": "https://github.com/bblfsh/bblfshd/commit/4265465b9b6fb5663c30ee43806126012066aad4", "tags": ["Patch", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/bblfsh/bblfshd/pull/341", "tags": ["Patch", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://securitylab.github.com/advisories/GHSL-2020-258-zipslip-bblfshd/", "tags": ["Exploit", "Third Party Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-59"}]}, {"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-23"}]}], "descriptions": [{"lang": "en", "value": "bblfshd is an open source self-hosted server for source code parsing. In bblfshd before commit 4265465b9b6fb5663c30ee43806126012066aad4 there is a \"zipslip\" vulnerability. The unsafe handling of symbolic links in an unpacking routine may enable attackers to read and/or write to arbitrary locations outside the designated target folder. This issue may lead to arbitrary file write (with same permissions as the program running the unpack operation) if the attacker can control the archive file. Additionally, if the attacker has read access to the unpacked files, he may be able to read arbitrary system files the parent process has permissions to read. For more details including a PoC see the referenced GHSL-2020-258."}, {"lang": "es", "value": "bblfshd es un servidor de c\u00f3digo abierto auto-alojado para el an\u00e1lisis de c\u00f3digo fuente. En bblfshd versiones anteriores al commit 4265465b9b6fb5663c30ee43806126012066aad4 se presenta una vulnerabilidad \"zipslip\". El manejo no seguro de los enlaces simb\u00f3licos en una rutina de desempaquetado puede permitir a atacantes leer y/o escribir en ubicaciones arbitrarias fuera de la carpeta de destino designada. Este problema puede conllevar una escritura arbitraria en el archivo (con los mismos permisos que el programa que ejecuta la operaci\u00f3n de desempaquetado) si el atacante puede controlar el archivo comprimido. Adicionalmente, si el atacante presenta acceso de lectura a los archivos desempaquetados, puede ser capaz de leer archivos arbitrario del sistema que el proceso parent presenta permisos para leer. Para mayor detalles, incluyendo un PoC, vea el GHSL-2020-258 referenciado."}], "lastModified": "2022-07-02T18:22:01.657", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:bblfshd_project:bblfshd:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "91C61354-2EC3-415C-9AAB-97896DF238FD", "versionEndExcluding": "2021-08-11"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}