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CVE-2004-1099

Estado: ModificadaAlta (10)—

Cisco Secure Access Control Server for Windows (ACS Windows) and Cisco Secure Access Control Server Solution Engine (ACS Solution Engine) 3.3.1, when the EAP-TLS protocol is enabled, does not properly handle expired or untrusted certificates, which allows remote attackers to bypass authentication and gain unauthorized access via a "cryptographically correct" certificate with valid fields such as the username.

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 (2)

Cisco — Secure Access Control ServerCisco — Secure ACS Solution Engine

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2004-1099",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 10,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": true,
        "exploitabilityScore": 10,
        "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": "2005-01-10T05:00:00.000",
  "references": [
    {
      "url": "http://www.ciac.org/ciac/bulletins/p-028.shtml",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.cisco.com/warp/public/707/cisco-sa-20041102-acs-eap-tls.shtml",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/11577",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/17936",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.ciac.org/ciac/bulletins/p-028.shtml",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.cisco.com/warp/public/707/cisco-sa-20041102-acs-eap-tls.shtml",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/11577",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/17936",
      "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": "Cisco Secure Access Control Server for Windows (ACS Windows) and Cisco Secure Access Control Server Solution Engine (ACS Solution Engine) 3.3.1, when the EAP-TLS protocol is enabled, does not properly handle expired or untrusted certificates, which allows remote attackers to bypass authentication and gain unauthorized access via a \"cryptographically correct\" certificate with valid fields such as the username."
    },
    {
      "lang": "es",
      "value": "Cisco Secure Access Control Server para Windows (ACS Windows) y Cisco Secure Access Control Server Solution Engine (ACS Solution Engine) 3.3.1 cuando el protocolo EAP-TLS está permitido, no maneja adecuadamente certificados expirados o no confiables, lo que permite a atacantes remotos saltarse autenticación y ganar acceso no autorizado mediante un certificado \"criptográficamente correcto\" con campos válidos, como el nombre de usuario."
    }
  ],
  "lastModified": "2026-06-16T22:07:01.303",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cisco:secure_access_control_server:3.3\\(1\\):*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0E587654-B5A0-47A4-BED6-D8DB69AEF566"
            },
            {
              "criteria": "cpe:2.3:a:cisco:secure_access_control_server:3.3.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6F07B954-817F-47AC-BCAC-3DA697A6E2F2"
            },
            {
              "criteria": "cpe:2.3:a:cisco:secure_acs_solution_engine:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3B17AFE8-DEC5-49BD-98EE-051454A632E5"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}