CVE-2006-6730

{"id": "CVE-2006-6730", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.6, "accessVector": "LOCAL", "vectorString": "AV:L/AC:M/Au:S/C:C/I:C/A:C", "authentication": "SINGLE", "integrityImpact": "COMPLETE", "accessComplexity": "MEDIUM", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 2.7, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "published": "2006-12-26T23:28:00.000", "references": [{"url": "http://lists.freedesktop.org/archives/xorg/2004-June/000927.html", "source": "cve@mitre.org"}, {"url": "http://www.cansecwest.com/slides06/csw06-duflot.ppt", "source": "cve@mitre.org"}, {"url": "http://www.securityfocus.com/archive/1/454379/100/0/threaded", "source": "cve@mitre.org"}, {"url": "http://www.securityfocus.com/archive/1/454510/100/0/threaded", "source": "cve@mitre.org"}, {"url": "http://www.securityfocus.com/archive/1/454706/100/0/threaded", "source": "cve@mitre.org"}, {"url": "http://www.ssi.gouv.fr/fr/sciences/fichiers/lti/cansecwest2006-duflot-paper.pdf", "source": "cve@mitre.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-Other"}]}], "descriptions": [{"lang": "en", "value": "OpenBSD and NetBSD permit usermode code to kill the display server and write to the X.Org /dev/xf86 device, which allows local users with root privileges to reduce securelevel by replacing the System Management Mode (SMM) handler via a write to an SMRAM address within /dev/xf86 (aka the video card memory-mapped I/O range), and then launching the new handler via a System Management Interrupt (SMI), as demonstrated by a write to Programmed I/O port 0xB2."}, {"lang": "es", "value": "OpenBSD y NetBSD permiten al c\u00f3digo en modo de usuario matar el servidor de pantalla y escribir en dispositivo X.Org /dev/xf86, lo cual permite a usuarios locales con privilegios de root reducir el nivel de seguridad reemplazando el manejador del Modo de Administraci\u00f3n de Sistema (System Management Mode o SMM) mediante una escritura a una direcci\u00f3n SMRAM dentro de /dev/xf86 (esto es el rango de E/S mapeado en memoria para la tarjeta de v\u00eddeo), y entonces lanzando el nuevo manejador mediante una Interrupci\u00f3n de Administraci\u00f3n de Sistema (System Management Interrupt o SMI), tal y como se ha demostrado con una escritura al puerto de E/S Programada 0xB2."}], "lastModified": "2018-10-17T21:49:29.397", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:netbsd:netbsd:2.0.4:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "36419DD6-0DB4-4BB6-A35F-D8FDB89402F1"}, {"criteria": "cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CA3CDD3C-DBA6-4BA2-967D-AD746822F3CF"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}