Vulnerability-Lookup

CNVD-2020-14760

Vulnerability from cnvd - Published: 2020-03-01

Title

openfortivpn证书验证处理不当漏洞

Description

openfortivpn是一款PPP（点对点协议）+SSL（传输层安全协议） VPN隧道服务的客户端程序。 openfortivpn 1.11.0版本（使用OpenSSL 1.0.2之前版本）中存在安全漏洞，该漏洞源于在比较主机名时未能考虑到‘’字符，导致tunnel.c文件无法正确处理证书的校验。攻击者可利用该漏洞绕过安全限制，获取系统的访问权限。

Severity

低

Patch Name

openfortivpn证书验证处理不当漏洞的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://github.com/adrienverge/openfortivpn/commit/cd9368c6a1b4ef91d77bb3fdbe2e5bc34aa6f4c4

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-7043

Impacted products

Name
adrienverge openfortivpn 1.11.0

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-7043",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-7043"
    }
  },
  "description": "openfortivpn\u662f\u4e00\u6b3ePPP\uff08\u70b9\u5bf9\u70b9\u534f\u8bae\uff09+SSL\uff08\u4f20\u8f93\u5c42\u5b89\u5168\u534f\u8bae\uff09 VPN\u96a7\u9053\u670d\u52a1\u7684\u5ba2\u6237\u7aef\u7a0b\u5e8f\u3002\n\nopenfortivpn 1.11.0\u7248\u672c\uff08\u4f7f\u7528OpenSSL 1.0.2\u4e4b\u524d\u7248\u672c\uff09\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728\u6bd4\u8f83\u4e3b\u673a\u540d\u65f6\u672a\u80fd\u8003\u8651\u5230\u2018\u2019\u5b57\u7b26\uff0c\u5bfc\u81f4tunnel.c\u6587\u4ef6\u65e0\u6cd5\u6b63\u786e\u5904\u7406\u8bc1\u4e66\u7684\u6821\u9a8c\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u5b89\u5168\u9650\u5236\uff0c\u83b7\u53d6\u7cfb\u7edf\u7684\u8bbf\u95ee\u6743\u9650\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/adrienverge/openfortivpn/commit/cd9368c6a1b4ef91d77bb3fdbe2e5bc34aa6f4c4",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-14760",
  "openTime": "2020-03-01",
  "patchDescription": "openfortivpn\u662f\u4e00\u6b3ePPP\uff08\u70b9\u5bf9\u70b9\u534f\u8bae\uff09+SSL\uff08\u4f20\u8f93\u5c42\u5b89\u5168\u534f\u8bae\uff09 VPN\u96a7\u9053\u670d\u52a1\u7684\u5ba2\u6237\u7aef\u7a0b\u5e8f\u3002\r\n\r\nopenfortivpn 1.11.0\u7248\u672c\uff08\u4f7f\u7528OpenSSL 1.0.2\u4e4b\u524d\u7248\u672c\uff09\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728\u6bd4\u8f83\u4e3b\u673a\u540d\u65f6\u672a\u80fd\u8003\u8651\u5230\u2018\u2019\u5b57\u7b26\uff0c\u5bfc\u81f4tunnel.c\u6587\u4ef6\u65e0\u6cd5\u6b63\u786e\u5904\u7406\u8bc1\u4e66\u7684\u6821\u9a8c\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u5b89\u5168\u9650\u5236\uff0c\u83b7\u53d6\u7cfb\u7edf\u7684\u8bbf\u95ee\u6743\u9650\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "openfortivpn\u8bc1\u4e66\u9a8c\u8bc1\u5904\u7406\u4e0d\u5f53\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "adrienverge openfortivpn 1.11.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-7043",
  "serverity": "\u4f4e",
  "submitTime": "2020-02-28",
  "title": "openfortivpn\u8bc1\u4e66\u9a8c\u8bc1\u5904\u7406\u4e0d\u5f53\u6f0f\u6d1e"
}

CVE-2020-7043 (GCVE-0-2020-7043)

Vulnerability from cvelistv5 – Published: 2020-02-27 17:30 – Updated: 2024-08-04 09:18

Summary

An issue was discovered in openfortivpn 1.11.0 when used with OpenSSL before 1.0.2. tunnel.c mishandles certificate validation because hostname comparisons do not consider '\0' characters, as demonstrated by a good.example.com\x00evil.example.com attack.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

8 references

URL	Tags
https://github.com/adrienverge/openfortivpn/issues/536	x_refsource_MISC
https://github.com/adrienverge/openfortivpn/commi…	x_refsource_MISC
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://github.com/adrienverge/openfortivpn/commi…	x_refsource_CONFIRM

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T09:18:03.013Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/adrienverge/openfortivpn/issues/536"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/adrienverge/openfortivpn/commit/cd9368c6a1b4ef91d77bb3fdbe2e5bc34aa6f4c4"
          },
          {
            "name": "openSUSE-SU-2020:0301",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00009.html"
          },
          {
            "name": "openSUSE-SU-2020:0305",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00011.html"
          },
          {
            "name": "FEDORA-2020-42eb8821db",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SRVVNXCNTNMPCIAZIVR4FAGYCSU53FNA/"
          },
          {
            "name": "FEDORA-2020-c96ab3c813",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FF6HYIBREQGATRM5COF57MRQWKOKCWZ3/"
          },
          {
            "name": "FEDORA-2020-dcdffcc368",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CKNKSGBVYGRRVRLFEFBEKUEJYJR5LWOF/"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/adrienverge/openfortivpn/commit/6328a070ddaab16faaf008cb9a8a62439c30f2a8"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in openfortivpn 1.11.0 when used with OpenSSL before 1.0.2. tunnel.c mishandles certificate validation because hostname comparisons do not consider \u0027\\0\u0027 characters, as demonstrated by a good.example.com\\x00evil.example.com attack."
        }
      ],
      "problemTypes": [
        {
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            {
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      "providerMetadata": {
        "dateUpdated": "2020-09-24T22:05:45.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
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          "tags": [
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          "url": "https://github.com/adrienverge/openfortivpn/issues/536"
        },
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          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/adrienverge/openfortivpn/commit/cd9368c6a1b4ef91d77bb3fdbe2e5bc34aa6f4c4"
        },
        {
          "name": "openSUSE-SU-2020:0301",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00009.html"
        },
        {
          "name": "openSUSE-SU-2020:0305",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00011.html"
        },
        {
          "name": "FEDORA-2020-42eb8821db",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SRVVNXCNTNMPCIAZIVR4FAGYCSU53FNA/"
        },
        {
          "name": "FEDORA-2020-c96ab3c813",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FF6HYIBREQGATRM5COF57MRQWKOKCWZ3/"
        },
        {
          "name": "FEDORA-2020-dcdffcc368",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CKNKSGBVYGRRVRLFEFBEKUEJYJR5LWOF/"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/adrienverge/openfortivpn/commit/6328a070ddaab16faaf008cb9a8a62439c30f2a8"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-7043",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
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              "lang": "eng",
              "value": "An issue was discovered in openfortivpn 1.11.0 when used with OpenSSL before 1.0.2. tunnel.c mishandles certificate validation because hostname comparisons do not consider \u0027\\0\u0027 characters, as demonstrated by a good.example.com\\x00evil.example.com attack."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/adrienverge/openfortivpn/issues/536",
              "refsource": "MISC",
              "url": "https://github.com/adrienverge/openfortivpn/issues/536"
            },
            {
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              "refsource": "MISC",
              "url": "https://github.com/adrienverge/openfortivpn/commit/cd9368c6a1b4ef91d77bb3fdbe2e5bc34aa6f4c4"
            },
            {
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              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00009.html"
            },
            {
              "name": "openSUSE-SU-2020:0305",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00011.html"
            },
            {
              "name": "FEDORA-2020-42eb8821db",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SRVVNXCNTNMPCIAZIVR4FAGYCSU53FNA/"
            },
            {
              "name": "FEDORA-2020-c96ab3c813",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FF6HYIBREQGATRM5COF57MRQWKOKCWZ3/"
            },
            {
              "name": "FEDORA-2020-dcdffcc368",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CKNKSGBVYGRRVRLFEFBEKUEJYJR5LWOF/"
            },
            {
              "name": "https://github.com/adrienverge/openfortivpn/commit/6328a070ddaab16faaf008cb9a8a62439c30f2a8",
              "refsource": "CONFIRM",
              "url": "https://github.com/adrienverge/openfortivpn/commit/6328a070ddaab16faaf008cb9a8a62439c30f2a8"
            }
          ]
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  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2020-7043",
    "datePublished": "2020-02-27T17:30:51.000Z",
    "dateReserved": "2020-01-14T00:00:00.000Z",
    "dateUpdated": "2024-08-04T09:18:03.013Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.