CVE-2021-41282

{"id": "CVE-2021-41282", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 9.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C", "authentication": "SINGLE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "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": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "published": "2022-03-01T23:15:08.347", "references": [{"url": "http://packetstormsecurity.com/files/166208/pfSense-2.5.2-Shell-Upload.html", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "https://docs.netgate.com/pfsense/en/latest/releases/22-01_2-6-0.html", "tags": ["Release Notes", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.shielder.it/advisories/", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.shielder.it/advisories/pfsense-remote-command-execution/", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-74"}]}], "descriptions": [{"lang": "en", "value": "diag_routes.php in pfSense 2.5.2 allows sed data injection. Authenticated users are intended to be able to view data about the routes set in the firewall. The data is retrieved by executing the netstat utility, and then its output is parsed via the sed utility. Although the common protection mechanisms against command injection (i.e., the usage of the escapeshellarg function for the arguments) are used, it is still possible to inject sed-specific code and write an arbitrary file in an arbitrary location."}, {"lang": "es", "value": "El archivo diag_routes.php en pfSense versi\u00f3n 2.5.2, permite una inyecci\u00f3n de datos sed. Es pretendido que usuarios autenticados puedan visualizar los datos sobre las rutas establecidas en el firewall. Los datos son recuperados al ejecutar la utilidad netstat, y luego su salida es analizada por medio de la utilidad sed. Aunque son usados los mecanismos comunes de protecci\u00f3n contra la inyecci\u00f3n de comandos (es decir, el uso de la funci\u00f3n escapeshellarg para los argumentos), todav\u00eda es posible inyectar c\u00f3digo espec\u00edfico de sed y escribir un archivo arbitrario en una ubicaci\u00f3n arbitraria"}], "lastModified": "2022-07-12T17:42:04.277", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:pfsense:pfsense:2.5.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AC1E93C2-8917-4E57-9607-ADA2F78F2BA5"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}