Vulnerability-Lookup

CNVD-2021-40157

Vulnerability from cnvd - Published: 2021-06-08

Title

OpenVPN存在未明漏洞

Description

Openvpn OpenVPN是美国OpenVPN（Openvpn）公司的一个用于创建虚拟专用网络（VPN）加密通道的软件包，它使用OpenSSL库来加密数据与控制信息，并允许创建的VPN使用公开密钥、电子证书或者用户名/密码来进行身份验证。 OpenVPN 存在安全漏洞，该漏洞源于专用隧道安装程序中可通过 mp目录中的符号链接访问。攻击者可通过该漏洞损坏系统关键文件。

Severity

高

Patch Name

OpenVPN存在未明漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://swupdate.openvpn.net/downloads/privatetunnel/changelog.txt

Reference

https://swupdate.openvpn.net/downloads/privatetunnel/changelog.txt

Impacted products

Name
OpenVPN Openvpn for macOS <=3.0.1

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-15076",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-15076"
    }
  },
  "description": "Openvpn OpenVPN\u662f\u7f8e\u56fdOpenVPN\uff08Openvpn\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u7528\u4e8e\u521b\u5efa\u865a\u62df\u4e13\u7528\u7f51\u7edc\uff08VPN\uff09\u52a0\u5bc6\u901a\u9053\u7684\u8f6f\u4ef6\u5305\uff0c\u5b83\u4f7f\u7528OpenSSL\u5e93\u6765\u52a0\u5bc6\u6570\u636e\u4e0e\u63a7\u5236\u4fe1\u606f\uff0c\u5e76\u5141\u8bb8\u521b\u5efa\u7684VPN\u4f7f\u7528\u516c\u5f00\u5bc6\u94a5\u3001\u7535\u5b50\u8bc1\u4e66\u6216\u8005\u7528\u6237\u540d/\u5bc6\u7801\u6765\u8fdb\u884c\u8eab\u4efd\u9a8c\u8bc1\u3002\n\nOpenVPN \u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u4e13\u7528\u96a7\u9053\u5b89\u88c5\u7a0b\u5e8f\u4e2d\u53ef\u901a\u8fc7\tmp\u76ee\u5f55\u4e2d\u7684\u7b26\u53f7\u94fe\u63a5\u8bbf\u95ee\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8be5\u6f0f\u6d1e\u635f\u574f\u7cfb\u7edf\u5173\u952e\u6587\u4ef6\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://swupdate.openvpn.net/downloads/privatetunnel/changelog.txt",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-40157",
  "openTime": "2021-06-08",
  "patchDescription": "Openvpn OpenVPN\u662f\u7f8e\u56fdOpenVPN\uff08Openvpn\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u7528\u4e8e\u521b\u5efa\u865a\u62df\u4e13\u7528\u7f51\u7edc\uff08VPN\uff09\u52a0\u5bc6\u901a\u9053\u7684\u8f6f\u4ef6\u5305\uff0c\u5b83\u4f7f\u7528OpenSSL\u5e93\u6765\u52a0\u5bc6\u6570\u636e\u4e0e\u63a7\u5236\u4fe1\u606f\uff0c\u5e76\u5141\u8bb8\u521b\u5efa\u7684VPN\u4f7f\u7528\u516c\u5f00\u5bc6\u94a5\u3001\u7535\u5b50\u8bc1\u4e66\u6216\u8005\u7528\u6237\u540d/\u5bc6\u7801\u6765\u8fdb\u884c\u8eab\u4efd\u9a8c\u8bc1\u3002\r\n\r\nOpenVPN \u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u4e13\u7528\u96a7\u9053\u5b89\u88c5\u7a0b\u5e8f\u4e2d\u53ef\u901a\u8fc7\tmp\u76ee\u5f55\u4e2d\u7684\u7b26\u53f7\u94fe\u63a5\u8bbf\u95ee\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8be5\u6f0f\u6d1e\u635f\u574f\u7cfb\u7edf\u5173\u952e\u6587\u4ef6\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": "OpenVPN\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "OpenVPN Openvpn for macOS \u003c=3.0.1"
  },
  "referenceLink": "https://swupdate.openvpn.net/downloads/privatetunnel/changelog.txt",
  "serverity": "\u9ad8",
  "submitTime": "2021-06-03",
  "title": "OpenVPN\u5b58\u5728\u672a\u660e\u6f0f\u6d1e"
}

CVE-2020-15076 (GCVE-0-2020-15076)

Vulnerability from cvelistv5 – Published: 2021-05-26 18:17 – Updated: 2024-08-04 13:08

Summary

Private Tunnel installer for macOS version 3.0.1 and older versions may corrupt system critical files it should not have access via symlinks in /tmp.

Severity

No CVSS data available.

CWE

CWE-61 - UNIX Symbolic Link (Symlink) Following

Assigner

OpenVPN mitre root

References

1 reference

URL	Tags
https://swupdate.openvpn.net/downloads/privatetun…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	Private Tunnel	Affected: 3.0.1 and prior versions

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T13:08:21.820Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://swupdate.openvpn.net/downloads/privatetunnel/changelog.txt"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Private Tunnel",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "3.0.1 and prior versions"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Private Tunnel installer for macOS version 3.0.1 and older versions may corrupt system critical files it should not have access via symlinks in /tmp."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-61",
              "description": "CWE-61: UNIX Symbolic Link (Symlink) Following",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-05-26T18:17:56.000Z",
        "orgId": "36a55730-e66d-4d39-8ca6-3c3b3017965e",
        "shortName": "OpenVPN"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://swupdate.openvpn.net/downloads/privatetunnel/changelog.txt"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@openvpn.net",
          "ID": "CVE-2020-15076",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Private Tunnel",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "3.0.1 and prior versions"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Private Tunnel installer for macOS version 3.0.1 and older versions may corrupt system critical files it should not have access via symlinks in /tmp."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-61: UNIX Symbolic Link (Symlink) Following"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://swupdate.openvpn.net/downloads/privatetunnel/changelog.txt",
              "refsource": "MISC",
              "url": "https://swupdate.openvpn.net/downloads/privatetunnel/changelog.txt"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "36a55730-e66d-4d39-8ca6-3c3b3017965e",
    "assignerShortName": "OpenVPN",
    "cveId": "CVE-2020-15076",
    "datePublished": "2021-05-26T18:17:57.000Z",
    "dateReserved": "2020-06-25T00:00:00.000Z",
    "dateUpdated": "2024-08-04T13:08:21.820Z",
    "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.