CVE-2021-36766

{"id": "CVE-2021-36766", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "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": 7.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.2}]}, "published": "2021-07-30T14:15:18.283", "references": [{"url": "http://packetstormsecurity.com/files/163564/Concrete5-8.5.5-Phar-Deserialization.html", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "http://seclists.org/fulldisclosure/2021/Jul/36", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://hackerone.com/reports/1063039", "tags": ["Permissions Required", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-502"}]}], "descriptions": [{"lang": "en", "value": "Concrete5 through 8.5.5 deserializes Untrusted Data. The vulnerable code is located within the controllers/single_page/dashboard/system/environment/logging.php Logging::update_logging() method. User input passed through the logFile request parameter is not properly sanitized before being used in a call to the file_exists() PHP function. This can be exploited by malicious users to inject arbitrary PHP objects into the application scope (PHP Object Injection via phar:// stream wrapper), allowing them to carry out a variety of attacks, such as executing arbitrary PHP code."}, {"lang": "es", "value": "Concrete5 versiones hasta 8.5.5, deserializa Datos no Confiables. El c\u00f3digo vulnerable se encuentra dentro del m\u00e9todo controllers/single_page/dashboard/system/environment/logging.php en la funci\u00f3n Logging::update_logging(). Una entrada del usuario que se pasa mediante el par\u00e1metro logFile request no es saneado apropiadamente antes de ser usada en una llamada a la funci\u00f3n PHP file_exists(). Esto puede ser explotado por usuarios maliciosos para inyectar objetos PHP arbitrarios en el \u00e1mbito de la aplicaci\u00f3n (PHP Object Injection por medio de phar:// stream wrapper), permiti\u00e9ndoles llevar a cabo una variedad de ataques, como una ejecuci\u00f3n de c\u00f3digo PHP arbitrario"}], "lastModified": "2021-09-22T16:56:08.547", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:concretecms:concrete_cms:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "396CE6F6-1989-443E-A894-A2547A0431BB", "versionEndExcluding": "8.5.6"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}