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CVE-2006-0393

Status: ModifiedMedium (4)—

OpenSSH in Apple Mac OS X 10.4.7 allows remote attackers to cause a denial of service or determine account existence by attempting to log in using an invalid user, which causes the server to hang.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (2)

Apple — MAC OS XApple — MAC OS X Server

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2006-0393",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:H/Au:N/C:P/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "HIGH",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 4.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2006-08-03T01:04:00.000",
  "references": [
    {
      "url": "http://lists.apple.com/archives/security-announce/2006//Aug/msg00000.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/21253",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://securitytracker.com/id?1016672",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.osvdb.org/27745",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/19289",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA06-214A.html",
      "tags": [
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      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2006/3101",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/28147",
      "source": "cve@mitre.org"
    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
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    },
    {
      "url": "http://www.osvdb.org/27745",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/19289",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA06-214A.html",
      "tags": [
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2006/3101",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/28147",
      "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": "OpenSSH in Apple Mac OS X 10.4.7 allows remote attackers to cause a denial of service or determine account existence by attempting to log in using an invalid user, which causes the server to hang."
    },
    {
      "lang": "es",
      "value": "OpenSSH en Apple Mac OS X 10.4.7 permite a atacantes remotos provocar denegación de servicio o determinar la existencia de cuetas intentando entrar utilizando un usuario no válido, lo cual hace que el servidor se cuelgue."
    }
  ],
  "lastModified": "2026-06-16T22:20:31.223",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.4.7:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8719F3C4-F1DE-49B5-9301-22414A2B6F9C"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x_server:10.4.7:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8AC9692A-CE81-446D-B136-449662C4B9A2"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}