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CVE-2004-2760

Estado: ModificadaMedia (6.8)—

sshd in OpenSSH 3.5p1, when PermitRootLogin is disabled, immediately closes the TCP connection after a root login attempt with the correct password, but leaves the connection open after an attempt with an incorrect password, which makes it easier for remote attackers to guess the password by observing the connection state, a different vulnerability than CVE-2003-0190. NOTE: it could be argued that in most environments, this does not cross privilege boundaries without requiring leverage of a separate vulnerability.

CVSS

Probabilidad de explotación (EPSS)

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

Referencias

JSON original (NVD)

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{
  "id": "CVE-2004-2760",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": true,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2004-12-31T05:00:00.000",
  "references": [
    {
      "url": "http://archive.cert.uni-stuttgart.de/bugtraq/2004/04/msg00162.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://securityreason.com/securityalert/4100",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/360198",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://archive.cert.uni-stuttgart.de/bugtraq/2004/04/msg00162.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://securityreason.com/securityalert/4100",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/360198",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-16"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "sshd in OpenSSH 3.5p1, when PermitRootLogin is disabled, immediately closes the TCP connection after a root login attempt with the correct password, but leaves the connection open after an attempt with an incorrect password, which makes it easier for remote attackers to guess the password by observing the connection state, a different vulnerability than CVE-2003-0190.  NOTE: it could be argued that in most environments, this does not cross privilege boundaries without requiring leverage of a separate vulnerability."
    }
  ],
  "lastModified": "2026-06-16T22:10:17.760",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:openbsd:openssh:3.5:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3FB9B4C7-4235-4388-8E5D-E72ECCC37A7E"
            },
            {
              "criteria": "cpe:2.3:a:openbsd:openssh:3.5p1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "86ACA0ED-A3D0-48A7-B06F-13709AD23B55"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "vendorComments": [
    {
      "comment": "The risks associated with fixing this bug are greater than the low severity security risk. We therefore currently have no plans to fix this flaw in Red Hat Enterprise Linux 2.1 which is in maintenance mode.",
      "lastModified": "2008-08-11T00:00:00",
      "organization": "Red Hat"
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}