CVE-2009-4146

{"id": "CVE-2009-4146", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.2, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": true, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "published": "2009-12-02T18:30:00.297", "references": [{"url": "http://packetstormsecurity.com/files/152997/FreeBSD-rtld-execl-Privilege-Escalation.html", "source": "cve@mitre.org"}, {"url": "http://people.freebsd.org/~cperciva/rtld.patch", "tags": ["Exploit"], "source": "cve@mitre.org"}, {"url": "http://secunia.com/advisories/37517", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.securityfocus.com/archive/1/508142/100/0/threaded", "source": "cve@mitre.org"}, {"url": "http://www.securityfocus.com/archive/1/508146/100/0/threaded", "source": "cve@mitre.org"}, {"url": "http://www.securityfocus.com/archive/1/508168/100/0/threaded", "source": "cve@mitre.org"}, {"url": "http://www.securityfocus.com/bid/37154", "tags": ["Exploit"], "source": "cve@mitre.org"}, {"url": "http://www.securitytracker.com/id?1023250", "source": "cve@mitre.org"}, {"url": "http://packetstormsecurity.com/files/152997/FreeBSD-rtld-execl-Privilege-Escalation.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://people.freebsd.org/~cperciva/rtld.patch", "tags": ["Exploit"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://secunia.com/advisories/37517", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securityfocus.com/archive/1/508142/100/0/threaded", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securityfocus.com/archive/1/508146/100/0/threaded", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securityfocus.com/archive/1/508168/100/0/threaded", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securityfocus.com/bid/37154", "tags": ["Exploit"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securitytracker.com/id?1023250", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-264"}]}], "descriptions": [{"lang": "en", "value": "The _rtld function in the Run-Time Link-Editor (rtld) in libexec/rtld-elf/rtld.c in FreeBSD 7.1, 7.2, and 8.0 does not clear the LD_PRELOAD environment variable, which allows local users to gain privileges by executing a setuid or setguid program with a modified LD_PRELOAD variable containing an untrusted search path that points to a Trojan horse library, a different vector than CVE-2009-4147."}, {"lang": "es", "value": "La funci\u00f3n _rtld en el Run-Time Link-Editor (rtld) de libexec/rtld-elf/rtld.c de FreeBSD v7.1, v7.2 y v8.0, no limpia la variable de entorno LD_PRELOAD, esto permite a usuarios locales aumentar sus privilegios al ejecutar el programa setuid o setguid con la variable LD_PRELOAD modificada para que contenga una ruta de b\u00fasqueda no confiable que apunte a una biblioteca de un Troyano. Se trata de una vulnerabilidad diferente de CVE-2009-4147."}], "lastModified": "2025-04-09T00:30:58.490", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:freebsd:freebsd:7.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "803EFA9F-B7CB-4511-B1C1-381170CA9A23"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:7.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F948527C-A01E-4315-80B6-47FACE18A34F"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:8.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3CF1F9EF-01AF-4708-AE02-765360AF3D66"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}