GSD-2020-35782

Vulnerability from gsd - Updated: 2023-12-13 01:22
Details
Certain NETGEAR devices are affected by lack of access control at the function level. This affects JGS516PE before 2.6.0.48, JGS524Ev2 before 2.6.0.48, JGS524PE before 2.6.0.48, and GS116Ev2 before 2.6.0.48. The TFTP firmware update mechanism does not properly implement firmware validations, allowing remote attackers to write arbitrary data to internal memory.
Aliases
Aliases
CVE-2020-35782
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{
  "GSD": {
    "alias": "CVE-2020-35782",
    "description": "Certain NETGEAR devices are affected by lack of access control at the function level. This affects JGS516PE before 2.6.0.48, JGS524Ev2 before 2.6.0.48, JGS524PE before 2.6.0.48, and GS116Ev2 before 2.6.0.48. The TFTP firmware update mechanism does not properly implement firmware validations, allowing remote attackers to write arbitrary data to internal memory.",
    "id": "GSD-2020-35782"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-35782"
      ],
      "details": "Certain NETGEAR devices are affected by lack of access control at the function level. This affects JGS516PE before 2.6.0.48, JGS524Ev2 before 2.6.0.48, JGS524PE before 2.6.0.48, and GS116Ev2 before 2.6.0.48. The TFTP firmware update mechanism does not properly implement firmware validations, allowing remote attackers to write arbitrary data to internal memory.",
      "id": "GSD-2020-35782",
      "modified": "2023-12-13T01:22:00.900217Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2020-35782",
        "STATE": "PUBLIC"
      },
      "affects": {
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            {
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                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
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                        {
                          "version_value": "n/a"
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            "value": "Certain NETGEAR devices are affected by lack of access control at the function level. This affects JGS516PE before 2.6.0.48, JGS524Ev2 before 2.6.0.48, JGS524PE before 2.6.0.48, and GS116Ev2 before 2.6.0.48. The TFTP firmware update mechanism does not properly implement firmware validations, allowing remote attackers to write arbitrary data to internal memory."
          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT",
          "availabilityImpact": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AC:L/AV:A/A:H/C:N/I:H/PR:N/S:U/UI:N",
          "version": "3.1"
        }
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          {
            "name": "https://kb.netgear.com/000062636/Security-Advisory-for-Missing-Function-Level-Access-Control-on-Some-Smart-Managed-Plus-Switches-PSV-2020-0378",
            "refsource": "MISC",
            "url": "https://kb.netgear.com/000062636/Security-Advisory-for-Missing-Function-Level-Access-Control-on-Some-Smart-Managed-Plus-Switches-PSV-2020-0378"
          },
          {
            "name": "https://research.nccgroup.com/2021/03/08/technical-advisory-multiple-vulnerabilities-in-netgear-prosafe-plus-jgs516pe-gs116ev2-switches/",
            "refsource": "MISC",
            "url": "https://research.nccgroup.com/2021/03/08/technical-advisory-multiple-vulnerabilities-in-netgear-prosafe-plus-jgs516pe-gs116ev2-switches/"
          }
        ]
      }
    },
    "nvd.nist.gov": {
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                    "cpe23Uri": "cpe:2.3:o:netgear:jgs516pe_firmware:*:*:*:*:*:*:*:*",
                    "cpe_name": [],
                    "versionEndExcluding": "2.6.0.48",
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            "children": [
              {
                "children": [],
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                    "cpe23Uri": "cpe:2.3:o:netgear:gs116e_firmware:*:*:*:*:*:*:*:*",
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                    "versionEndExcluding": "2.6.0.48",
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              },
              {
                "children": [],
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          "ID": "CVE-2020-35782"
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        "data_type": "CVE",
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        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "Certain NETGEAR devices are affected by lack of access control at the function level. This affects JGS516PE before 2.6.0.48, JGS524Ev2 before 2.6.0.48, JGS524PE before 2.6.0.48, and GS116Ev2 before 2.6.0.48. The TFTP firmware update mechanism does not properly implement firmware validations, allowing remote attackers to write arbitrary data to internal memory."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "NVD-CWE-Other"
                }
              ]
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          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://kb.netgear.com/000062636/Security-Advisory-for-Missing-Function-Level-Access-Control-on-Some-Smart-Managed-Plus-Switches-PSV-2020-0378",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://kb.netgear.com/000062636/Security-Advisory-for-Missing-Function-Level-Access-Control-on-Some-Smart-Managed-Plus-Switches-PSV-2020-0378"
            },
            {
              "name": "https://research.nccgroup.com/2021/03/08/technical-advisory-multiple-vulnerabilities-in-netgear-prosafe-plus-jgs516pe-gs116ev2-switches/",
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              "tags": [
                "Exploit",
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              "url": "https://research.nccgroup.com/2021/03/08/technical-advisory-multiple-vulnerabilities-in-netgear-prosafe-plus-jgs516pe-gs116ev2-switches/"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 7.8,
            "confidentialityImpact": "NONE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:A/AC:L/Au:N/C:N/I:C/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 6.5,
          "impactScore": 9.2,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.2
        }
      },
      "lastModifiedDate": "2021-03-26T19:56Z",
      "publishedDate": "2020-12-30T00:15Z"
    }
  }
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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