Vulnerability-Lookup

BDU:2023-06986 (CVE-2023-36671)

Vulnerability from fstec – Published: 2023-10-21 – Updated: 2023-10-21 – View on bdu.fstec.ru Exploit publicly available No remediation information

Title

Уязвимость VPN-сервиса Clario, связанная с отсутствием защиты передаваемых данных, позволяющая нарушителю отправить произвольный IP-трафик в виде открытого текста за пределы VPN-туннеля

Summary

Уязвимость VPN-клиента Clario связана с отсутствием защиты передаваемых данных. Эксплуатация уязвимости может позволить нарушителю отправить произвольный IP-трафик в виде открытого текста за пределы VPN-туннеля

Severity

5.6 (Medium) CVSS 2.0


                      
                        AV:L/AC:H/Au:N/C:C/I:C/A:N

6.3 (Medium) CVSS 3.0


                      
                        CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Information gathering

Incidents

Being clarified

Remediation

Being clarified

CWE

CWE-319 - Передача секретной информации в виде открытого текста

Aliases

CVE-2023-36671

References

3 references

URL
https://clario.co/vpn-for-mac/
https://tunnelcrack.mathyvanhoef.com/details.html
https://www.kaspersky.ru/blog/how-to-fix-tunnelcrack-vpn-leak/35893/

Impacted products

1 product from 1 vendor

Vendors

Clario Tech Limited

Products

Clario

Versions

до 5.9.1.1662 включительно (Clario)

Product types

Security device, Security software

Platforms

Apple Inc. MacOS -

Mitigations

Компенсирующие меры: - отключение разрешений на доступ к локальной сети, либо опции «пропускать локальный трафик без VPN»; - использование средств межсетевого экранирования с внедрением механизма «белых» списков IP-адресов; - использование инструментов защищенного DNS.

JSON

To clipboard

{
  "CVSS 2.0": "AV:L/AC:H/Au:N/C:C/I:C/A:N",
  "CVSS 3.0": "AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "Clario Tech Limited",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "\u0434\u043e 5.9.1.1662 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Clario)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u041a\u043e\u043c\u043f\u0435\u043d\u0441\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u043c\u0435\u0440\u044b:\n- \u043e\u0442\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 \u0440\u0430\u0437\u0440\u0435\u0448\u0435\u043d\u0438\u0439 \u043d\u0430 \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u043b\u043e\u043a\u0430\u043b\u044c\u043d\u043e\u0439 \u0441\u0435\u0442\u0438, \u043b\u0438\u0431\u043e \u043e\u043f\u0446\u0438\u0438 \u00ab\u043f\u0440\u043e\u043f\u0443\u0441\u043a\u0430\u0442\u044c \u043b\u043e\u043a\u0430\u043b\u044c\u043d\u044b\u0439 \u0442\u0440\u0430\u0444\u0438\u043a \u0431\u0435\u0437 VPN\u00bb;\n- \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0440\u0435\u0434\u0441\u0442\u0432 \u043c\u0435\u0436\u0441\u0435\u0442\u0435\u0432\u043e\u0433\u043e \u044d\u043a\u0440\u0430\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0441 \u0432\u043d\u0435\u0434\u0440\u0435\u043d\u0438\u0435\u043c \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 \u00ab\u0431\u0435\u043b\u044b\u0445\u00bb \u0441\u043f\u0438\u0441\u043a\u043e\u0432 IP-\u0430\u0434\u0440\u0435\u0441\u043e\u0432;\n- \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u043e\u0432 \u0437\u0430\u0449\u0438\u0449\u0435\u043d\u043d\u043e\u0433\u043e DNS.",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "09.08.2023",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "21.10.2023",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "21.10.2023",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2023-06986",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2023-36671",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0443\u0435\u0442",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "Clario",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": "Apple Inc. MacOS - ",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c VPN-\u0441\u0435\u0440\u0432\u0438\u0441\u0430 Clario, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u0430\u044f \u0441 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435\u043c \u0437\u0430\u0449\u0438\u0442\u044b \u043f\u0435\u0440\u0435\u0434\u0430\u0432\u0430\u0435\u043c\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043e\u0442\u043f\u0440\u0430\u0432\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0439 IP-\u0442\u0440\u0430\u0444\u0438\u043a \u0432 \u0432\u0438\u0434\u0435 \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0433\u043e \u0442\u0435\u043a\u0441\u0442\u0430 \u0437\u0430 \u043f\u0440\u0435\u0434\u0435\u043b\u044b VPN-\u0442\u0443\u043d\u043d\u0435\u043b\u044f",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0421\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u0435\u0442 \u0432 \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u043c \u0434\u043e\u0441\u0442\u0443\u043f\u0435",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u041f\u0435\u0440\u0435\u0434\u0430\u0447\u0430 \u0441\u0435\u043a\u0440\u0435\u0442\u043d\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 \u0432 \u0432\u0438\u0434\u0435 \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0433\u043e \u0442\u0435\u043a\u0441\u0442\u0430 (CWE-319)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c VPN-\u043a\u043b\u0438\u0435\u043d\u0442\u0430 Clario \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435\u043c \u0437\u0430\u0449\u0438\u0442\u044b \u043f\u0435\u0440\u0435\u0434\u0430\u0432\u0430\u0435\u043c\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043e\u0442\u043f\u0440\u0430\u0432\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0439 IP-\u0442\u0440\u0430\u0444\u0438\u043a \u0432 \u0432\u0438\u0434\u0435 \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0433\u043e \u0442\u0435\u043a\u0441\u0442\u0430 \u0437\u0430 \u043f\u0440\u0435\u0434\u0435\u043b\u044b VPN-\u0442\u0443\u043d\u043d\u0435\u043b\u044f",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041d\u0435\u0441\u0430\u043d\u043a\u0446\u0438\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u0441\u0431\u043e\u0440 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://clario.co/vpn-for-mac/\nhttps://tunnelcrack.mathyvanhoef.com/details.html\nhttps://www.kaspersky.ru/blog/how-to-fix-tunnelcrack-vpn-leak/35893/",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u0421\u0440\u0435\u0434\u0441\u0442\u0432\u043e \u0437\u0430\u0449\u0438\u0442\u044b, \u041f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0435 \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u043e \u0437\u0430\u0449\u0438\u0442\u044b",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-319",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0421\u0440\u0435\u0434\u043d\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 5,6)\n\u0421\u0440\u0435\u0434\u043d\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 6,3)"
}

CVE-2023-36671 (GCVE-0-2023-36671)

Vulnerability from cvelistv5 – Published: 2023-08-09 00:00 – Updated: 2024-10-17 14:19

Summary

An issue was discovered in the Clario VPN client through 5.9.1.1662 for macOS. The VPN client insecurely configures the operating system such that all IP traffic to the VPN server's IP address is sent in plaintext outside the VPN tunnel even if this traffic is not generated by the VPN client. This allows an adversary to trick the victim into sending plaintext traffic to the VPN server's IP address and thereby deanonymize the victim. NOTE: the tunnelcrack.mathyvanhoef.com website uses this CVE ID to refer more generally to "ServerIP attack for only traffic to the real IP address of the VPN server" rather than to only Clario.

Severity

No CVSS data available.

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-10-17 14:18 UTC

CWE

Assigner

mitre mitre root

References

3 references

URL	Tags
https://clario.co/vpn-for-mac/
https://tunnelcrack.mathyvanhoef.com/details.html
https://psirt.global.sonicwall.com/vuln-detail/SN…

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T16:52:54.263Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://clario.co/vpn-for-mac/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://tunnelcrack.mathyvanhoef.com/details.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0015"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-36671",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-17T14:18:54.380458Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-17T14:19:08.185Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in the Clario VPN client through 5.9.1.1662 for macOS. The VPN client insecurely configures the operating system such that all IP traffic to the VPN server\u0027s IP address is sent in plaintext outside the VPN tunnel even if this traffic is not generated by the VPN client. This allows an adversary to trick the victim into sending plaintext traffic to the VPN server\u0027s IP address and thereby deanonymize the victim. NOTE: the tunnelcrack.mathyvanhoef.com website uses this CVE ID to refer more generally to \"ServerIP attack for only traffic to the real IP address of the VPN server\" rather than to only Clario."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-10-31T08:06:27.904Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://clario.co/vpn-for-mac/"
        },
        {
          "url": "https://tunnelcrack.mathyvanhoef.com/details.html"
        },
        {
          "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0015"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2023-36671",
    "datePublished": "2023-08-09T00:00:00.000Z",
    "dateReserved": "2023-06-26T00:00:00.000Z",
    "dateUpdated": "2024-10-17T14:19:08.185Z",
    "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.