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FKIE_CVE-2021-3063

Vulnerability from fkie_nvd - Published: 2021-11-10 17:15 - Updated: 2026-06-17 04:04
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
An improper handling of exceptional conditions vulnerability exists in Palo Alto Networks GlobalProtect portal and gateway interfaces that enables an unauthenticated network-based attacker to send specifically crafted traffic to a GlobalProtect interface that causes the service to stop responding. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.21; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14-h4; PAN-OS 9.1 versions earlier than PAN-OS 9.1.11-h3; PAN-OS 10.0 versions earlier than PAN-OS 10.0.8-h4; PAN-OS 10.1 versions earlier than PAN-OS 10.1.3. Prisma Access customers are not impacted by this issue.
References
psirt@paloaltonetworks.comhttps://security.paloaltonetworks.com/CVE-2021-3063Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.paloaltonetworks.com/CVE-2021-3063Vendor Advisory
Impacted products
Vendor Product Version
paloaltonetworks pan-os *
paloaltonetworks pan-os *
paloaltonetworks pan-os *
paloaltonetworks pan-os *
paloaltonetworks pan-os *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "PAN-OS",
          "vendor": "Palo Alto Networks",
          "versions": [
            {
              "changes": [
                {
                  "at": "8.1.21",
                  "status": "unaffected"
                }
              ],
              "lessThan": "8.1.21",
              "status": "affected",
              "version": "8.1",
              "versionType": "custom"
            },
            {
              "changes": [
                {
                  "at": "9.0.14-h4",
                  "status": "unaffected"
                }
              ],
              "lessThan": "9.0.14-h4",
              "status": "affected",
              "version": "9.0",
              "versionType": "custom"
            },
            {
              "changes": [
                {
                  "at": "10.0.8-h4",
                  "status": "unaffected"
                }
              ],
              "lessThan": "10.0.8-h4",
              "status": "affected",
              "version": "10.0",
              "versionType": "custom"
            },
            {
              "changes": [
                {
                  "at": "10.1.3",
                  "status": "unaffected"
                }
              ],
              "lessThan": "10.1.3",
              "status": "affected",
              "version": "10.1",
              "versionType": "custom"
            },
            {
              "changes": [
                {
                  "at": "9.1.11-h3",
                  "status": "unaffected"
                }
              ],
              "lessThan": "9.1.11-h3",
              "status": "affected",
              "version": "9.1",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Prisma Access",
          "vendor": "Palo Alto Networks",
          "versions": [
            {
              "status": "unaffected",
              "version": "2.2 all"
            },
            {
              "status": "unaffected",
              "version": "2.1 all"
            }
          ]
        }
      ],
      "source": "psirt@paloaltonetworks.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "859B40E3-713E-4FB5-ACB1-0138D937E1B6",
              "versionEndExcluding": "8.1.21",
              "versionStartIncluding": "8.1.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9E95975B-A993-48FE-BA16-C89BEB075CBE",
              "versionEndIncluding": "9.0.14",
              "versionStartIncluding": "9.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "7C95A07E-5F94-4907-A283-954B7924DA3A",
              "versionEndIncluding": "9.1.11",
              "versionStartIncluding": "9.1.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6FAE26BA-0B27-4AE9-AFA3-33E16CEF7AB9",
              "versionEndIncluding": "10.0.8",
              "versionStartIncluding": "10.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "40AFDDF3-0AB4-4A18-93E9-01EE5BDE9D2E",
              "versionEndExcluding": "10.1.3",
              "versionStartIncluding": "10.1.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An improper handling of exceptional conditions vulnerability exists in Palo Alto Networks GlobalProtect portal and gateway interfaces that enables an unauthenticated network-based attacker to send specifically crafted traffic to a GlobalProtect interface that causes the service to stop responding. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.21; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14-h4; PAN-OS 9.1 versions earlier than PAN-OS 9.1.11-h3; PAN-OS 10.0 versions earlier than PAN-OS 10.0.8-h4; PAN-OS 10.1 versions earlier than PAN-OS 10.1.3. Prisma Access customers are not impacted by this issue."
    },
    {
      "lang": "es",
      "value": "Se presenta una vulnerabilidad de administraci\u00f3n inapropiada de condiciones excepcionales en las interfaces de portal y puerta de enlace de Palo Alto Networks GlobalProtect que permite a un atacante no autenticado basado en la red enviar tr\u00e1fico espec\u00edficamente dise\u00f1ado a una interfaz de GlobalProtect que cause que el servicio deje de responder. Los intentos repetidos de enviar esta petici\u00f3n resulta en una denegaci\u00f3n de servicio a todos los servicios de PAN-OS, reiniciando el dispositivo y poni\u00e9ndolo en modo de mantenimiento. Este problema afecta a: PAN-OS versiones 8.1 anteriores a PAN-OS 8.1.21; PAN-OS versiones 9.0 anteriores a PAN-OS 9.0.14-h4; PAN-OS versiones 9.1 anteriores a PAN-OS 9.1.11-h3; PAN-OS versiones 10.0 anteriores a PAN-OS 10.0.8-h4; PAN-OS versiones 10.1 anteriores a PAN-OS 10.1.3. Los clientes de Prisma Access no est\u00e1n afectados por este problema"
    }
  ],
  "id": "CVE-2021-3063",
  "lastModified": "2026-06-17T04:04:40.257",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "psirt@paloaltonetworks.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-11-10T17:15:10.507",
  "references": [
    {
      "source": "psirt@paloaltonetworks.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://security.paloaltonetworks.com/CVE-2021-3063"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://security.paloaltonetworks.com/CVE-2021-3063"
    }
  ],
  "sourceIdentifier": "psirt@paloaltonetworks.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-755"
        }
      ],
      "source": "psirt@paloaltonetworks.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-755"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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