« Volver al listado

CVE-2020-2033

Estado: ModificadaMedia (5.3)—

When the pre-logon feature is enabled, a missing certification validation in Palo Alto Networks GlobalProtect app can disclose the pre-logon authentication cookie to a man-in-the-middle attacker on the same local area network segment with the ability to manipulate ARP or to conduct ARP spoofing attacks. This allows the attacker to access the GlobalProtect Server as allowed by configured Security rules for the 'pre-login' user. This access may be limited compared to the network access of regular users. This issue affects: GlobalProtect app 5.0 versions earlier than GlobalProtect app 5.0.10 when the prelogon feature is enabled; GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.4 when the prelogon feature is enabled.

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)

Paloaltonetworks — Globalprotect

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2020-2033",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 2.9,
          "accessVector": "ADJACENT_NETWORK",
          "vectorString": "AV:A/AC:M/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 5.5,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@paloaltonetworks.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.6
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.6
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@paloaltonetworks.com",
      "affectedData": [
        {
          "vendor": "Palo Alto Networks",
          "product": "GlobalProtect App",
          "versions": [
            {
              "status": "affected",
              "changes": [
                {
                  "at": "5.1.4",
                  "status": "unaffected"
                }
              ],
              "version": "5.1",
              "lessThan": "5.1.4",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "changes": [
                {
                  "at": "5.0.10",
                  "status": "unaffected"
                }
              ],
              "version": "5.0",
              "lessThan": "5.0.10",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-06-10T18:15:11.860",
  "references": [
    {
      "url": "https://security.paloaltonetworks.com/CVE-2020-2033",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@paloaltonetworks.com"
    },
    {
      "url": "https://security.paloaltonetworks.com/CVE-2020-2033",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@paloaltonetworks.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-290"
        },
        {
          "lang": "en",
          "value": "CWE-295"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-290"
        },
        {
          "lang": "en",
          "value": "CWE-295"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "When the pre-logon feature is enabled, a missing certification validation in Palo Alto Networks GlobalProtect app can disclose the pre-logon authentication cookie to a man-in-the-middle attacker on the same local area network segment with the ability to manipulate ARP or to conduct ARP spoofing attacks. This allows the attacker to access the GlobalProtect Server as allowed by configured Security rules for the 'pre-login' user. This access may be limited compared to the network access of regular users. This issue affects: GlobalProtect app 5.0 versions earlier than GlobalProtect app 5.0.10 when the prelogon feature is enabled; GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.4 when the prelogon feature is enabled."
    },
    {
      "lang": "es",
      "value": "Cuando la funcionalidad pre-logon está habilitada, una falta de comprobación de certificación en la aplicación GlobalProtect de Palo Alto Networks puede revelar la cookie de autenticación de pre-logon a un atacante de tipo man-in-the-middle en el mismo segmento de red de área local con la capacidad de manipular ARP o conducir ataques de suplantación de identidad de ARP. Esto permite al atacante acceder al servidor GlobalProtect de acuerdo a lo permitido por las reglas de seguridad configuradas para el usuario \"pre-login\". Este acceso puede ser limitado comparado con el acceso a la red de los usuarios habituales. Este problema afecta a: la aplicación GlobalProtect versiones 5.0 anteriores a la aplicación GlobalProtect versión 5.0.10 cuando la función de inicio de sesión está habilitada; La aplicación GlobalProtect versiones 5.1 anteriores a la aplicación GlobalProtect versión 5.1.4, cuando la funcionalidad pre-logon está habilitada"
    }
  ],
  "lastModified": "2026-06-17T03:11:40.920",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:paloaltonetworks:globalprotect:*:*:*:*:*:windows:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2D325D3A-D857-4528-A6CC-0E8142A38C58",
              "versionEndExcluding": "5.0.10",
              "versionStartIncluding": "5.0.0"
            },
            {
              "criteria": "cpe:2.3:a:paloaltonetworks:globalprotect:*:*:*:*:*:windows:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5BF3D585-3F87-492B-8CE9-54122A2D228A",
              "versionEndExcluding": "5.1.4",
              "versionStartIncluding": "5.1.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@paloaltonetworks.com"
}