GSD-2020-36382

Vulnerability from gsd - Updated: 2023-12-13 01:21
Details
OpenVPN Access Server 2.7.3 to 2.8.7 allows remote attackers to trigger an assert during the user authentication phase via incorrect authentication token data in an early phase of the user authentication resulting in a denial of service.
Aliases
Aliases
CVE-2020-36382
To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-36382",
    "description": "OpenVPN Access Server 2.7.3 to 2.8.7 allows remote attackers to trigger an assert during the user authentication phase via incorrect authentication token data in an early phase of the user authentication resulting in a denial of service.",
    "id": "GSD-2020-36382",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-36382.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-36382"
      ],
      "details": "OpenVPN Access Server 2.7.3 to 2.8.7 allows remote attackers to trigger an assert during the user authentication phase via incorrect authentication token data in an early phase of the user authentication resulting in a denial of service.",
      "id": "GSD-2020-36382",
      "modified": "2023-12-13T01:21:55.584541Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@openvpn.net",
        "ID": "CVE-2020-36382",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "OpenVPN Access Server",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "2.7.3 to 2.8.7"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
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      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
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          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-754: Improper Check for Unusual or Exceptional Conditions"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://openvpn.net/vpn-server-resources/release-notes/",
            "refsource": "MISC",
            "url": "https://openvpn.net/vpn-server-resources/release-notes/"
          },
          {
            "name": "https://openvpn.net/security-advisory/access-server-security-update-cve-2020-15077-cve-2020-36382/",
            "refsource": "MISC",
            "url": "https://openvpn.net/security-advisory/access-server-security-update-cve-2020-15077-cve-2020-36382/"
          }
        ]
      }
    },
    "nvd.nist.gov": {
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        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:openvpn:openvpn_access_server:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "2.8.7",
                "versionStartIncluding": "2.7.3",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security@openvpn.net",
          "ID": "CVE-2020-36382"
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "OpenVPN Access Server 2.7.3 to 2.8.7 allows remote attackers to trigger an assert during the user authentication phase via incorrect authentication token data in an early phase of the user authentication resulting in a denial of service."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-617"
                }
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          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://openvpn.net/security-advisory/access-server-security-update-cve-2020-15077-cve-2020-36382/",
              "refsource": "MISC",
              "tags": [
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              "url": "https://openvpn.net/security-advisory/access-server-security-update-cve-2020-15077-cve-2020-36382/"
            },
            {
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              ],
              "url": "https://openvpn.net/vpn-server-resources/release-notes/"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "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": "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
        }
      },
      "lastModifiedDate": "2022-09-20T19:28Z",
      "publishedDate": "2021-06-04T11:15Z"
    }
  }
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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