CVE-2007-4993

Estado: ModificadaMedia (6.9)—
pygrub (tools/pygrub/src/GrubConf.py) in Xen 3.0.3, when booting a guest domain, allows local users with elevated privileges in the guest domain to execute arbitrary commands in domain 0 via a crafted grub.conf file whose contents are used in exec statements.
CVSS

Versión: 2.0
Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C
Puntuación base: 6.9
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.63%
Percentil entre todas las CVEs puntuadas: 49
Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)

Xensource INC — XEN
CWE

CWE-20
Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2007-4993",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.9,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": true,
        "exploitabilityScore": 3.4,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2007-09-27T17:17:00.000",
  "references": [
    {
      "url": "http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1068",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/26986",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/27047",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/27072",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/27085",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/27103",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/27141",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/27161",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/27486",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.debian.org/security/2007/dsa-1384",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:203",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.redhat.com/support/errata/RHSA-2007-0323.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/481825/100/0/threaded",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/25825",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.ubuntu.com/usn/usn-527-1",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2007/3348",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://issues.rpath.com/browse/RPL-1752",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11240",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://www.redhat.com/archives/fedora-package-announce/2007-November/msg00004.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://www.redhat.com/archives/fedora-package-announce/2007-October/msg00030.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://www.redhat.com/archives/fedora-package-announce/2007-October/msg00082.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1068",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/26986",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/27047",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/27072",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/27085",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/27103",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/27141",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/27161",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/27486",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.debian.org/security/2007/dsa-1384",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:203",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.redhat.com/support/errata/RHSA-2007-0323.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/481825/100/0/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/25825",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.ubuntu.com/usn/usn-527-1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2007/3348",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://issues.rpath.com/browse/RPL-1752",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11240",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.redhat.com/archives/fedora-package-announce/2007-November/msg00004.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.redhat.com/archives/fedora-package-announce/2007-October/msg00030.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.redhat.com/archives/fedora-package-announce/2007-October/msg00082.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "pygrub (tools/pygrub/src/GrubConf.py) in Xen 3.0.3, when booting a guest domain, allows local users with elevated privileges in the guest domain to execute arbitrary commands in domain 0 via a crafted grub.conf file whose contents are used in exec statements."
    },
    {
      "lang": "es",
      "value": "pygrub (tools/pygrub/src/GrubConf.py) en Xen 3.0.3, en el arranque de un dominio invitado, permite a usuarios locales con privilegios elevados en el dominio invitado ejecutar comandos de su elección en el dominio 0 mediante un fichero grub.conf manipulado artesanalmente cuyo contenido es utilizado en sentencias exec."
    }
  ],
  "lastModified": "2026-06-16T22:45:14.447",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:xensource_inc:xen:3.0.3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2F147FAC-C7E1-423E-BE47-A6BFA0E12066"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secalert@redhat.com"
}