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CVE-2002-1106

Estado: ModificadaAlta (7.5)—

Cisco Virtual Private Network (VPN) Client software 2.x.x, and 3.x before 3.5.1C, does not properly verify that certificate DN fields match those of the certificate from the VPN Concentrator, which allows remote attackers to conduct man-in-the-middle attacks.

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)

Cisco — VPN Client

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2002-1106",
  "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": false,
        "obtainOtherPrivilege": true,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2002-10-04T04:00:00.000",
  "references": [
    {
      "url": "http://www.cisco.com/warp/public/707/vpnclient-multiple2-vuln-pub.shtml",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/5652",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/10045",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.cisco.com/warp/public/707/vpnclient-multiple2-vuln-pub.shtml",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/5652",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/10045",
      "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 Virtual Private Network (VPN) Client software 2.x.x, and 3.x before 3.5.1C, does not properly verify that certificate DN fields match those of the certificate from the VPN Concentrator, which allows remote attackers to conduct man-in-the-middle attacks."
    }
  ],
  "lastModified": "2026-06-16T21:58:44.237",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cisco:vpn_client:2.0:*:windows:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "398B68C7-C1DB-4A62-B0A2-89C917768E58"
            },
            {
              "criteria": "cpe:2.3:a:cisco:vpn_client:3.0:*:windows:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "20C66C87-1367-4440-A2C2-E6B657DA2743"
            },
            {
              "criteria": "cpe:2.3:a:cisco:vpn_client:3.1:*:windows:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4A270D7C-ACBC-41A4-A606-8A4F35894E74"
            },
            {
              "criteria": "cpe:2.3:a:cisco:vpn_client:3.5.1:*:windows:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "59938F7D-5F64-4FC0-A5B2-C798AF297130"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}