CVE-2007-4752

Estado: ModificadaAlta (7.5)—
ssh in OpenSSH before 4.7 does not properly handle when an untrusted cookie cannot be created and uses a trusted X11 cookie instead, which allows attackers to violate intended policy and gain privileges by causing an X client to be treated as trusted.
CVSS

Versión: 2.0
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Puntuación base: 7.5
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 2.37%
Percentil entre todas las CVEs puntuadas: 83
Fecha de la puntuación: 7/10/2026
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)

Openbsd — Openssh
CWE

CWE-20
Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2007-4752",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": true,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2007-09-12T01:17:00.000",
  "references": [
    {
      "url": "http://bugs.gentoo.org/show_bug.cgi?id=191321",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://docs.info.apple.com/article.html?artnum=307562",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01271085",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.apple.com/archives/security-announce/2008/Mar/msg00001.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2007-10/msg00008.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/27399",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/29420",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/30249",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/31575",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/32241",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://security.gentoo.org/glsa/glsa-200711-02.xml",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://securityreason.com/securityalert/3126",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://support.avaya.com/elmodocs2/security/ASA-2008-399.htm",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.debian.org/security/2008/dsa-1576",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:236",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.openssh.com/txt/release-4.7",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.redhat.com/support/errata/RHSA-2008-0855.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/479760/100/0/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/483748/100/200/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/25628",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.ubuntu.com/usn/usn-566-1",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2007/3156",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2008/0924/references",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2008/2821",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=280471",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/36637",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://issues.rpath.com/browse/RPL-1706",
      "tags": [
        "Patch"
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      "source": "cve@mitre.org"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10809",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5599",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.redhat.com/archives/fedora-package-announce/2007-October/msg00214.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://bugs.gentoo.org/show_bug.cgi?id=191321",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://docs.info.apple.com/article.html?artnum=307562",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01271085",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.apple.com/archives/security-announce/2008/Mar/msg00001.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2007-10/msg00008.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/27399",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/29420",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/30249",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/31575",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/32241",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://security.gentoo.org/glsa/glsa-200711-02.xml",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://securityreason.com/securityalert/3126",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://support.avaya.com/elmodocs2/security/ASA-2008-399.htm",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.debian.org/security/2008/dsa-1576",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:236",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.openssh.com/txt/release-4.7",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.redhat.com/support/errata/RHSA-2008-0855.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.securityfocus.com/archive/1/479760/100/0/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/483748/100/200/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/25628",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.ubuntu.com/usn/usn-566-1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2007/3156",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2008/0924/references",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "url": "http://www.vupen.com/english/advisories/2008/2821",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=280471",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/36637",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://issues.rpath.com/browse/RPL-1706",
      "tags": [
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10809",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5599",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.redhat.com/archives/fedora-package-announce/2007-October/msg00214.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": "ssh in OpenSSH before 4.7 does not properly handle when an untrusted cookie cannot be created and uses a trusted X11 cookie instead, which allows attackers to violate intended policy and gain privileges by causing an X client to be treated as trusted."
    },
    {
      "lang": "es",
      "value": "ssh en OpenSSH anterior a 4.7 no maneja adecuadamente cuando una cookie no confiable no puede ser creada y utiliza una cookie X11 confiable en su lugar, lo cual permite a los atacantes violar políticas establecidas y obtener privilegios provocando que un cliente X sea tratado como confiable."
    }
  ],
  "lastModified": "2026-06-16T22:44:42.657",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A410C8F9-717C-4657-91DD-BAEAB53ECC16",
              "versionEndIncluding": "4.6"
            },
            {
              "criteria": "cpe:2.3:a:openbsd:openssh:4.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E003AB3C-8DF3-4AE8-82A3-984F30E5599B"
            },
            {
              "criteria": "cpe:2.3:a:openbsd:openssh:4.0p1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5EBE75FE-DDE2-43BA-80EF-15A6698EABC9"
            },
            {
              "criteria": "cpe:2.3:a:openbsd:openssh:4.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1FF67D77-02AC-4807-984D-C5AE9799F051"
            },
            {
              "criteria": "cpe:2.3:a:openbsd:openssh:4.1p1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "683B26F0-5EA2-455A-8948-27C100BBA3AC"
            },
            {
              "criteria": "cpe:2.3:a:openbsd:openssh:4.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E5A75B23-2DD7-4EB2-BEAA-049FF4E51A14"
            },
            {
              "criteria": "cpe:2.3:a:openbsd:openssh:4.2p1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7279E1EC-DEBC-4ACC-925D-06A7697C162F"
            },
            {
              "criteria": "cpe:2.3:a:openbsd:openssh:4.3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7910598E-BEC1-4644-9DE4-D8BE505A4F9E"
            },
            {
              "criteria": "cpe:2.3:a:openbsd:openssh:4.3p1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FB416D0C-6C86-450F-8917-D4B1BD82AB1E"
            },
            {
              "criteria": "cpe:2.3:a:openbsd:openssh:4.3p2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3640CCC9-EC4A-44A4-B747-7BAAAD3460C7"
            },
            {
              "criteria": "cpe:2.3:a:openbsd:openssh:4.4:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B2DD362E-9EA9-4E88-9A94-D7B471EB1FD4"
            },
            {
              "criteria": "cpe:2.3:a:openbsd:openssh:4.4p1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E3094069-AC2E-43BD-8094-D48E2526DECC"
            },
            {
              "criteria": "cpe:2.3:a:openbsd:openssh:4.5:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9B72CFB3-39C7-469C-AA59-69F5B8993BF7"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "vendorComments": [
    {
      "comment": "This issue did not affect the OpenSSH packages as distributed with Red Hat Enterprise Linux 2.1 or 3, as they do not support Trusted X11 forwarding.\n\nFor Red Hat Enterprise Linux 4 and 5, this issue was addressed via: https://rhn.redhat.com/errata/RHSA-2008-0855.html\n",
      "lastModified": "2008-08-28T00:00:00",
      "organization": "Red Hat"
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}