{ "id": "CVE-2016-3957", "sourceIdentifier": "cve@mitre.org", "published": "2018-02-06T18:29:00.400", "lastModified": "2019-06-21T22:15:10.623", "vulnStatus": "Modified", "descriptions": [ { "lang": "en", "value": "The secure_load function in gluon/utils.py in web2py before 2.14.2 uses pickle.loads to deserialize session information stored in cookies, which might allow remote attackers to execute arbitrary code by leveraging knowledge of encryption_key." }, { "lang": "es", "value": "La funci\u00f3n secure_load en gluon/utils.py en web2py, en versiones anteriores a la 2.14.2, emplea pickle.loads para deserializar informaci\u00f3n de sesi\u00f3n almacenada en cookies. Esto podr\u00eda permitir que atacantes remotos ejecuten c\u00f3digo arbitrario aprovechando el conocimiento de encryption_key." } ], "metrics": { "cvssMetricV30": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.0", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL" }, "exploitabilityScore": 3.9, "impactScore": 5.9 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "baseScore": 7.5 }, "baseSeverity": "HIGH", "exploitabilityScore": 10.0, "impactScore": 6.4, "acInsufInfo": true, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-502" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:web2py:web2py:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.14.2", "matchCriteriaId": "AFE64C05-496E-4D7D-A659-5F376D249FAC" } ] } ] } ], "references": [ { "url": "https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3957/", "source": "cve@mitre.org", "tags": [ "Exploit", "Technical Description", "Third Party Advisory" ] }, { "url": "https://github.com/web2py/web2py/blob/R-2.14.1/gluon/utils.py#L200", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] }, { "url": "https://usn.ubuntu.com/4030-1/", "source": "cve@mitre.org" } ] }