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GSD-2020-1999

Vulnerability from gsd - Updated: 2023-12-13 01:21
Details
A vulnerability exists in the Palo Alto Network PAN-OS signature-based threat detection engine that allows an attacker to communicate with devices in the network in a way that is not analyzed for threats by sending data through specifically crafted TCP packets. This technique evades signature-based threat detection. This issue impacts: PAN-OS 8.1 versions earlier than 8.1.17; PAN-OS 9.0 versions earlier than 9.0.11; PAN-OS 9.1 versions earlier than 9.1.5; All versions of PAN-OS 7.1 and PAN-OS 8.0.
Aliases
Aliases

{
  "GSD": {
    "alias": "CVE-2020-1999",
    "description": "A vulnerability exists in the Palo Alto Network PAN-OS signature-based threat detection engine that allows an attacker to communicate with devices in the network in a way that is not analyzed for threats by sending data through specifically crafted TCP packets. This technique evades signature-based threat detection. This issue impacts: PAN-OS 8.1 versions earlier than 8.1.17; PAN-OS 9.0 versions earlier than 9.0.11; PAN-OS 9.1 versions earlier than 9.1.5; All versions of PAN-OS 7.1 and PAN-OS 8.0.",
    "id": "GSD-2020-1999"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-1999"
      ],
      "details": "A vulnerability exists in the Palo Alto Network PAN-OS signature-based threat detection engine that allows an attacker to communicate with devices in the network in a way that is not analyzed for threats by sending data through specifically crafted TCP packets. This technique evades signature-based threat detection. This issue impacts: PAN-OS 8.1 versions earlier than 8.1.17; PAN-OS 9.0 versions earlier than 9.0.11; PAN-OS 9.1 versions earlier than 9.1.5; All versions of PAN-OS 7.1 and PAN-OS 8.0.",
      "id": "GSD-2020-1999",
      "modified": "2023-12-13T01:21:58.493925Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "psirt@paloaltonetworks.com",
        "DATE_PUBLIC": "2020-11-11T17:00:00.000Z",
        "ID": "CVE-2020-1999",
        "STATE": "PUBLIC",
        "TITLE": "PAN-OS: Threat signatures are evaded by specifically crafted packets"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "PAN-OS",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "8.1",
                          "version_value": "8.1.17"
                        },
                        {
                          "version_affected": "\u003c",
                          "version_name": "9.0",
                          "version_value": "9.0.11"
                        },
                        {
                          "version_affected": "\u003c",
                          "version_name": "9.1",
                          "version_value": "9.1.5"
                        },
                        {
                          "version_affected": "!\u003e=",
                          "version_name": "8.1",
                          "version_value": "8.1.17"
                        },
                        {
                          "version_affected": "!\u003e=",
                          "version_name": "9.0",
                          "version_value": "9.0.11"
                        },
                        {
                          "version_affected": "!\u003e=",
                          "version_name": "9.1",
                          "version_value": "9.1.5"
                        },
                        {
                          "version_affected": "=",
                          "version_name": "7.1",
                          "version_value": "7.1.*"
                        },
                        {
                          "version_affected": "=",
                          "version_name": "8.0",
                          "version_value": "8.0.*"
                        },
                        {
                          "version_affected": "!",
                          "version_name": "10.0",
                          "version_value": "10.0.*"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Palo Alto Networks"
            }
          ]
        }
      },
      "credit": [
        {
          "lang": "eng",
          "value": "This issue was found by Vijay Prakash of Palo Alto Networks during internal security review."
        }
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "A vulnerability exists in the Palo Alto Network PAN-OS signature-based threat detection engine that allows an attacker to communicate with devices in the network in a way that is not analyzed for threats by sending data through specifically crafted TCP packets. This technique evades signature-based threat detection. This issue impacts: PAN-OS 8.1 versions earlier than 8.1.17; PAN-OS 9.0 versions earlier than 9.0.11; PAN-OS 9.1 versions earlier than 9.1.5; All versions of PAN-OS 7.1 and PAN-OS 8.0."
          }
        ]
      },
      "exploit": [
        {
          "lang": "eng",
          "value": "Palo Alto Networks is not aware of any malicious exploitation of this issue."
        }
      ],
      "generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-754 Improper Check for Unusual or Exceptional Conditions"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://security.paloaltonetworks.com/CVE-2020-1999",
            "refsource": "MISC",
            "url": "https://security.paloaltonetworks.com/CVE-2020-1999"
          }
        ]
      },
      "solution": [
        {
          "lang": "eng",
          "value": "This issue is fixed in PAN-OS 8.1.17, PAN-OS 9.0.11, PAN-OS 9.1.5, and all later PAN-OS versions."
        }
      ],
      "source": {
        "defect": [
          "PAN-145133"
        ],
        "discovery": "INTERNAL"
      },
      "timeline": [
        {
          "lang": "eng",
          "time": "2020-11-11T17:00:00.000Z",
          "value": "Initial publication"
        }
      ],
      "work_around": [
        {
          "lang": "eng",
          "value": "There are no known workarounds for this issue."
        }
      ],
      "x_advisoryEoL": false,
      "x_affectedList": [
        "PAN-OS 9.1.4",
        "PAN-OS 9.1.3-h1",
        "PAN-OS 9.1.3",
        "PAN-OS 9.1.2-h1",
        "PAN-OS 9.1.2",
        "PAN-OS 9.1.1",
        "PAN-OS 9.1.0-h3",
        "PAN-OS 9.1.0-h2",
        "PAN-OS 9.1.0-h1",
        "PAN-OS 9.1.0",
        "PAN-OS 9.1",
        "PAN-OS 9.0.10",
        "PAN-OS 9.0.9-h1",
        "PAN-OS 9.0.9",
        "PAN-OS 9.0.8",
        "PAN-OS 9.0.7",
        "PAN-OS 9.0.6",
        "PAN-OS 9.0.5",
        "PAN-OS 9.0.4",
        "PAN-OS 9.0.3-h3",
        "PAN-OS 9.0.3-h2",
        "PAN-OS 9.0.3-h1",
        "PAN-OS 9.0.3",
        "PAN-OS 9.0.2-h4",
        "PAN-OS 9.0.2-h3",
        "PAN-OS 9.0.2-h2",
        "PAN-OS 9.0.2-h1",
        "PAN-OS 9.0.2",
        "PAN-OS 9.0.1",
        "PAN-OS 9.0.0",
        "PAN-OS 9.0",
        "PAN-OS 8.1.16",
        "PAN-OS 8.1.15-h3",
        "PAN-OS 8.1.15-h2",
        "PAN-OS 8.1.15-h1",
        "PAN-OS 8.1.15",
        "PAN-OS 8.1.14-h2",
        "PAN-OS 8.1.14-h1",
        "PAN-OS 8.1.14",
        "PAN-OS 8.1.13",
        "PAN-OS 8.1.12",
        "PAN-OS 8.1.11",
        "PAN-OS 8.1.10",
        "PAN-OS 8.1.9-h4",
        "PAN-OS 8.1.9-h3",
        "PAN-OS 8.1.9-h2",
        "PAN-OS 8.1.9-h1",
        "PAN-OS 8.1.9",
        "PAN-OS 8.1.8-h5",
        "PAN-OS 8.1.8-h4",
        "PAN-OS 8.1.8-h3",
        "PAN-OS 8.1.8-h2",
        "PAN-OS 8.1.8-h1",
        "PAN-OS 8.1.8",
        "PAN-OS 8.1.7",
        "PAN-OS 8.1.6-h2",
        "PAN-OS 8.1.6-h1",
        "PAN-OS 8.1.6",
        "PAN-OS 8.1.5",
        "PAN-OS 8.1.4",
        "PAN-OS 8.1.3",
        "PAN-OS 8.1.2",
        "PAN-OS 8.1.1",
        "PAN-OS 8.1.0",
        "PAN-OS 8.1",
        "PAN-OS 8.0.20",
        "PAN-OS 8.0.19-h1",
        "PAN-OS 8.0.19",
        "PAN-OS 8.0.18",
        "PAN-OS 8.0.17",
        "PAN-OS 8.0.16",
        "PAN-OS 8.0.15",
        "PAN-OS 8.0.14",
        "PAN-OS 8.0.13",
        "PAN-OS 8.0.12",
        "PAN-OS 8.0.11-h1",
        "PAN-OS 8.0.10",
        "PAN-OS 8.0.9",
        "PAN-OS 8.0.8",
        "PAN-OS 8.0.7",
        "PAN-OS 8.0.6-h3",
        "PAN-OS 8.0.6-h2",
        "PAN-OS 8.0.6-h1",
        "PAN-OS 8.0.6",
        "PAN-OS 8.0.5",
        "PAN-OS 8.0.4",
        "PAN-OS 8.0.3-h4",
        "PAN-OS 8.0.3-h3",
        "PAN-OS 8.0.3-h2",
        "PAN-OS 8.0.3-h1",
        "PAN-OS 8.0.3",
        "PAN-OS 8.0.2",
        "PAN-OS 8.0.1",
        "PAN-OS 8.0.0",
        "PAN-OS 8.0",
        "PAN-OS 7.1.26",
        "PAN-OS 7.1.25",
        "PAN-OS 7.1.24-h1",
        "PAN-OS 7.1.24",
        "PAN-OS 7.1.23",
        "PAN-OS 7.1.22",
        "PAN-OS 7.1.21",
        "PAN-OS 7.1.20",
        "PAN-OS 7.1.19",
        "PAN-OS 7.1.18",
        "PAN-OS 7.1.17",
        "PAN-OS 7.1.16",
        "PAN-OS 7.1.15",
        "PAN-OS 7.1.14",
        "PAN-OS 7.1.13",
        "PAN-OS 7.1.12",
        "PAN-OS 7.1.11",
        "PAN-OS 7.1.10",
        "PAN-OS 7.1.9-h4",
        "PAN-OS 7.1.9-h3",
        "PAN-OS 7.1.9-h2",
        "PAN-OS 7.1.9-h1",
        "PAN-OS 7.1.9",
        "PAN-OS 7.1.8",
        "PAN-OS 7.1.7",
        "PAN-OS 7.1.6",
        "PAN-OS 7.1.5",
        "PAN-OS 7.1.4-h2",
        "PAN-OS 7.1.4-h1",
        "PAN-OS 7.1.4",
        "PAN-OS 7.1.3",
        "PAN-OS 7.1.2",
        "PAN-OS 7.1.1",
        "PAN-OS 7.1.0",
        "PAN-OS 7.1"
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "7.1.26",
                "versionStartIncluding": "7.1.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "8.0.20",
                "versionStartIncluding": "8.0.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "8.1.17",
                "versionStartIncluding": "8.1.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "9.0.11",
                "versionStartIncluding": "9.0.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "9.1.5",
                "versionStartIncluding": "9.1.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@paloaltonetworks.com",
          "ID": "CVE-2020-1999"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "A vulnerability exists in the Palo Alto Network PAN-OS signature-based threat detection engine that allows an attacker to communicate with devices in the network in a way that is not analyzed for threats by sending data through specifically crafted TCP packets. This technique evades signature-based threat detection. This issue impacts: PAN-OS 8.1 versions earlier than 8.1.17; PAN-OS 9.0 versions earlier than 9.0.11; PAN-OS 9.1 versions earlier than 9.1.5; All versions of PAN-OS 7.1 and PAN-OS 8.0."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-754"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "N/A",
              "refsource": "CONFIRM",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://security.paloaltonetworks.com/CVE-2020-1999"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2020-11-16T21:28Z",
      "publishedDate": "2020-11-12T00:15Z"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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