2024-12-08 03:06:42 +00:00

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{
"id": "CVE-2006-6730",
"sourceIdentifier": "cve@mitre.org",
"published": "2006-12-26T23:28:00.000",
"lastModified": "2024-11-21T00:23:30.530",
"vulnStatus": "Modified",
"cveTags": [],
"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."
}
],
"metrics": {
"cvssMetricV2": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"cvssData": {
"version": "2.0",
"vectorString": "AV:L/AC:M/Au:S/C:C/I:C/A:C",
"baseScore": 6.6,
"accessVector": "LOCAL",
"accessComplexity": "MEDIUM",
"authentication": "SINGLE",
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"availabilityImpact": "COMPLETE"
},
"baseSeverity": "MEDIUM",
"exploitabilityScore": 2.7,
"impactScore": 10.0,
"acInsufInfo": false,
"obtainAllPrivilege": false,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
]
},
"weaknesses": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "NVD-CWE-Other"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:netbsd:netbsd:2.0.4:*:*:*:*:*:*:*",
"matchCriteriaId": "36419DD6-0DB4-4BB6-A35F-D8FDB89402F1"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*",
"matchCriteriaId": "CA3CDD3C-DBA6-4BA2-967D-AD746822F3CF"
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}
],
"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"
},
{
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{
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{
"url": "http://www.ssi.gouv.fr/fr/sciences/fichiers/lti/cansecwest2006-duflot-paper.pdf",
"source": "cve@mitre.org"
},
{
"url": "http://lists.freedesktop.org/archives/xorg/2004-June/000927.html",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
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}