{
  "GSD": {
    "alias": "CVE-2020-2002",
    "description": "An authentication bypass by spoofing vulnerability exists in the authentication daemon and User-ID components of Palo Alto Networks PAN-OS by failing to verify the integrity of the Kerberos key distribution center (KDC) before authenticating users. This affects all forms of authentication that use a Kerberos authentication profile. A man-in-the-middle type of attacker with the ability to intercept communication between PAN-OS and KDC can login to PAN-OS as an administrator. This issue affects: PAN-OS 7.1 versions earlier than 7.1.26; PAN-OS 8.1 versions earlier than 8.1.13; PAN-OS 9.0 versions earlier than 9.0.6; All version of PAN-OS 8.0.",
    "id": "GSD-2020-2002"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-2002"
      ],
      "details": "An authentication bypass by spoofing vulnerability exists in the authentication daemon and User-ID components of Palo Alto Networks PAN-OS by failing to verify the integrity of the Kerberos key distribution center (KDC) before authenticating users. This affects all forms of authentication that use a Kerberos authentication profile. A man-in-the-middle type of attacker with the ability to intercept communication between PAN-OS and KDC can login to PAN-OS as an administrator. This issue affects: PAN-OS 7.1 versions earlier than 7.1.26; PAN-OS 8.1 versions earlier than 8.1.13; PAN-OS 9.0 versions earlier than 9.0.6; All version of PAN-OS 8.0.",
      "id": "GSD-2020-2002",
      "modified": "2023-12-13T01:21:50.923256Z",
      "schema_version": "1.4.0"
    }
  },
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        "ASSIGNER": "psirt@paloaltonetworks.com",
        "DATE_PUBLIC": "2020-05-13T16:00:00.000Z",
        "ID": "CVE-2020-2002",
        "STATE": "PUBLIC",
        "TITLE": "PAN-OS: Spoofed Kerberos key distribution center authentication bypass"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "PAN-OS",
                    "version": {
                      "version_data": [
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                          "version_affected": "\u003c",
                          "version_name": "8.1",
                          "version_value": "8.1.13"
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                        },
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                          "version_affected": "!\u003e=",
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                          "version_value": "9.0.6"
                        },
                        {
                          "version_affected": "!\u003e=",
                          "version_name": "7.1",
                          "version_value": "7.1.26"
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                          "version_affected": "=",
                          "version_name": "8.0",
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                ]
              },
              "vendor_name": "Palo Alto Networks"
            }
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        }
      },
      "credit": [
        {
          "lang": "eng",
          "value": "Palo Alto Networks would like to thank Yoav Iellin, Yaron Kassner, and Rotem Zach from Silverfort for discovering and reporting this issue."
        }
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
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            "value": "An authentication bypass by spoofing vulnerability exists in the authentication daemon and User-ID components of Palo Alto Networks PAN-OS by failing to verify the integrity of the Kerberos key distribution center (KDC) before authenticating users. This affects all forms of authentication that use a Kerberos authentication profile. A man-in-the-middle type of attacker with the ability to intercept communication between PAN-OS and KDC can login to PAN-OS as an administrator. This issue affects: PAN-OS 7.1 versions earlier than 7.1.26; PAN-OS 8.1 versions earlier than 8.1.13; PAN-OS 9.0 versions earlier than 9.0.6; All version of PAN-OS 8.0."
          }
        ]
      },
      "generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "impact": {
        "cvss": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-290 Authentication Bypass by Spoofing"
              }
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      },
      "references": {
        "reference_data": [
          {
            "name": "https://security.paloaltonetworks.com/CVE-2020-2002",
            "refsource": "MISC",
            "url": "https://security.paloaltonetworks.com/CVE-2020-2002"
          }
        ]
      },
      "solution": [
        {
          "lang": "eng",
          "value": "This issue is fixed in PAN-OS 7.1.26, PAN-OS 8.1.13, PAN-OS 9.0.6, and all later PAN-OS versions.\n\nPAN-OS 8.0 is now end-of-life as of October 31, 2019, and is no longer covered by our Product Security Assurance policies."
        }
      ],
      "source": {
        "defect": [
          "PAN-118957"
        ],
        "discovery": "EXTERNAL"
      },
      "timeline": [
        {
          "lang": "eng",
          "time": "2020-05-13T16:00:00.000Z",
          "value": "Initial publication"
        }
      ],
      "work_around": [
        {
          "lang": "eng",
          "value": "Ensure that PAN-OS communicates to Kerberos server over a secured network with access restricted to trusted users.\n\nPlease review the Best Practices for Securing Administrative Access in the PAN-OS technical documentation, available at: https://docs.paloaltonetworks.com."
        }
      ]
    },
    "nvd.nist.gov": {
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      "cve": {
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          "ASSIGNER": "psirt@paloaltonetworks.com",
          "ID": "CVE-2020-2002"
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        "description": {
          "description_data": [
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              "lang": "en",
              "value": "An authentication bypass by spoofing vulnerability exists in the authentication daemon and User-ID components of Palo Alto Networks PAN-OS by failing to verify the integrity of the Kerberos key distribution center (KDC) before authenticating users. This affects all forms of authentication that use a Kerberos authentication profile. A man-in-the-middle type of attacker with the ability to intercept communication between PAN-OS and KDC can login to PAN-OS as an administrator. This issue affects: PAN-OS 7.1 versions earlier than 7.1.26; PAN-OS 8.1 versions earlier than 8.1.13; PAN-OS 9.0 versions earlier than 9.0.6; All version of PAN-OS 8.0."
            }
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      "impact": {
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          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
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          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
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            "baseScore": 8.1,
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            "confidentialityImpact": "HIGH",
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          "impactScore": 5.9
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      },
      "lastModifiedDate": "2020-05-19T16:02Z",
      "publishedDate": "2020-05-13T19:15Z"
    }
  }
}