CVE-2006-5794

Estado: ModificadaAlta (7.5)—
Unspecified vulnerability in the sshd Privilege Separation Monitor in OpenSSH before 4.5 causes weaker verification that authentication has been successful, which might allow attackers to bypass authentication. NOTE: as of 20061108, it is believed that this issue is only exploitable by leveraging vulnerabilities in the unprivileged process, which are not known to exist.
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: 2.81%
Percentil entre todas las CVEs puntuadas: 86
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

NVD-CWE-Other
Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2006-5794",
  "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": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2006-11-08T20:07:00.000",
  "references": [
    {
      "url": "ftp://patches.sgi.com/support/free/security/advisories/20061201-01-P.asc",
      "source": "secalert@redhat.com"
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      "url": "http://rhn.redhat.com/errata/RHSA-2006-0738.html",
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    {
      "url": "http://secunia.com/advisories/22771",
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    {
      "url": "http://secunia.com/advisories/22772",
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    {
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      "url": "http://secunia.com/advisories/22778",
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    {
      "url": "http://www.openpkg.org/security/advisories/OpenPKG-SA-2006.032-openssh.html",
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    },
    {
      "url": "http://www.openssh.org/txt/release-4.5",
      "source": "secalert@redhat.com"
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    {
      "url": "http://www.securityfocus.com/archive/1/451100/100/0/threaded",
      "source": "secalert@redhat.com"
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    {
      "url": "http://www.securityfocus.com/bid/20956",
      "tags": [
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    },
    {
      "url": "http://www.vmware.com/support/vi3/doc/esx-3069097-patch.html",
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    {
      "url": "http://www.vmware.com/support/vi3/doc/esx-9986131-patch.html",
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      "url": "http://www.vupen.com/english/advisories/2006/4399",
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      "url": "http://www.vupen.com/english/advisories/2006/4400",
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    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/30120",
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    {
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      "url": "http://secunia.com/advisories/22772",
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      "url": "http://secunia.com/advisories/22773",
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    {
      "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2006:204",
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    },
    {
      "url": "http://www.novell.com/linux/security/advisories/2006_26_sr.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.openpkg.org/security/advisories/OpenPKG-SA-2006.032-openssh.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.openssh.org/txt/release-4.5",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.securityfocus.com/archive/1/451100/100/0/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.securityfocus.com/bid/20956",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/30120",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://issues.rpath.com/browse/RPL-766",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11840",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Unspecified vulnerability in the sshd Privilege Separation Monitor in OpenSSH before 4.5 causes weaker verification that authentication has been successful, which might allow attackers to bypass authentication. NOTE: as of 20061108, it is believed that this issue is only exploitable by leveraging vulnerabilities in the unprivileged process, which are not known to exist."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad sin especificar en el sshd Privilege Separation Monitor en OpenSSH para versiones anteriores a la 4.5 que provoca una verificación más leve que la autenticación, y que podría permitir a atacantes remotos evitar la autenticación. NOTA: en el 20061108, se cree que es sólo explotada por el impulso de vulnerabilidades en un proceso sin privilegios, hasta ahora desconocidos.\r\n"
    }
  ],
  "lastModified": "2026-06-16T22:31:53.510",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3E3FE4E6-870E-4F84-9D50-7BF48ADFB380",
              "versionEndIncluding": "4.4"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "vendorComments": [
    {
      "comment": "This issue did not affect Red Hat Enterprise Linux 2.1.\n\nThis issue was addressed in Red Hat Enterprise Linux 3 and 4 via\nhttps://rhn.redhat.com/errata/RHSA-2006-0738.html .\n\nRed Hat Enterprise Linux 5 is not vulnerable to this issue as it contains a backported patch.",
      "lastModified": "2009-09-24T00:00:00",
      "organization": "Red Hat"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com"
}