cve-2023-6764
Vulnerability from cvelistv5
Published
2024-02-20 02:14
Modified
2024-08-02 08:42
Summary
A format string vulnerability in a function of the IPSec VPN feature in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 through 5.37 Patch 1, and USG20(W)-VPN series firmware versions from 4.16 through 5.37 Patch 1 could allow an attacker to achieve unauthorized remote code execution by sending a sequence of specially crafted payloads containing an invalid pointer; however, such an attack would require detailed knowledge of an affected device’s memory layout and configuration.
Impacted products
Vendor Product Version
Zyxel USG FLEX series firmware Version: version 4.50 through 5.37 Patch 1
Zyxel USG FLEX 50(W) series firmware Version: version 4.16 through 5.37 Patch 1
Zyxel USG20(W)-VPN series firmware Version: version 4.16 through 5.37 Patch 1
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:o:zyxel:atp_firmware:-:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "atp_firmware",
            "vendor": "zyxel",
            "versions": [
              {
                "lessThanOrEqual": "5.37patch1",
                "status": "affected",
                "version": "4.32",
                "versionType": "custom"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:zyxel:usg_flex_firmware:-:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "usg_flex_firmware",
            "vendor": "zyxel",
            "versions": [
              {
                "lessThanOrEqual": "5.37patch1",
                "status": "affected",
                "version": "4.50",
                "versionType": "custom"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:zyxel:usg_flex_50w_firmware:-:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "usg_flex_50w_firmware",
            "vendor": "zyxel",
            "versions": [
              {
                "lessThanOrEqual": "5.37patch1",
                "status": "affected",
                "version": "4.16",
                "versionType": "custom"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:zyxel:usg_20w-vpn_firmware:-:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "usg_20w-vpn_firmware",
            "vendor": "zyxel",
            "versions": [
              {
                "lessThanOrEqual": "5.37patch1",
                "status": "affected",
                "version": "4.16",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-6764",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-03-01T05:01:05.440386Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-27T20:53:09.347Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T08:42:07.430Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-aps-02-20-2024"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "ATP series firmware",
          "vendor": "Zyxel",
          "versions": [
            {
              "status": "affected",
              "version": "version 4.32 through 5.37 Patch 1"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "USG FLEX series firmware",
          "vendor": "Zyxel",
          "versions": [
            {
              "status": "affected",
              "version": "version 4.50 through 5.37 Patch 1"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "USG FLEX 50(W) series firmware",
          "vendor": "Zyxel",
          "versions": [
            {
              "status": "affected",
              "version": "version 4.16 through 5.37 Patch 1"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "USG20(W)-VPN series firmware",
          "vendor": "Zyxel",
          "versions": [
            {
              "status": "affected",
              "version": "version 4.16 through 5.37 Patch 1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\n\n\n\n\n\n\n\n\n\n\n\n\nA format string vulnerability in a function of the IPSec VPN feature in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 through 5.37 Patch 1, and USG20(W)-VPN series firmware versions from 4.16 through 5.37 Patch 1 could allow an attacker to achieve unauthorized remote code execution by sending a sequence of specially crafted payloads containing an invalid pointer; however, such an attack would require detailed knowledge of an affected device\u2019s memory layout and configuration.\n\n\n\n"
            }
          ],
          "value": "\n\n\n\n\n\n\n\n\n\n\n\nA format string vulnerability in a function of the IPSec VPN feature in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 through 5.37 Patch 1, and USG20(W)-VPN series firmware versions from 4.16 through 5.37 Patch 1 could allow an attacker to achieve unauthorized remote code execution by sending a sequence of specially crafted payloads containing an invalid pointer; however, such an attack would require detailed knowledge of an affected device\u2019s memory layout and configuration.\n\n\n\n"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-134",
              "description": "CWE-134 Use of Externally-Controlled Format String",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-02-20T02:14:09.814Z",
        "orgId": "96e50032-ad0d-4058-a115-4d2c13821f9f",
        "shortName": "Zyxel"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-aps-02-20-2024"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "96e50032-ad0d-4058-a115-4d2c13821f9f",
    "assignerShortName": "Zyxel",
    "cveId": "CVE-2023-6764",
    "datePublished": "2024-02-20T02:14:09.814Z",
    "dateReserved": "2023-12-13T08:39:31.993Z",
    "dateUpdated": "2024-08-02T08:42:07.430Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-6764\",\"sourceIdentifier\":\"security@zyxel.com.tw\",\"published\":\"2024-02-20T03:15:07.870\",\"lastModified\":\"2024-11-21T08:44:30.593\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\nA format string vulnerability in a function of the IPSec VPN feature in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 through 5.37 Patch 1, and USG20(W)-VPN series firmware versions from 4.16 through 5.37 Patch 1 could allow an attacker to achieve unauthorized remote code execution by sending a sequence of specially crafted payloads containing an invalid pointer; however, such an attack would require detailed knowledge of an affected device\u2019s memory layout and configuration.\\n\\n\\n\\n\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad de cadena de formato en una funci\u00f3n de la funci\u00f3n VPN IPSec en las versiones de firmware de la serie Zyxel ATP de 4.32 a 5.37 Parche 1, versiones de firmware de la serie USG FLEX de 4.50 a 5.37 Parche 1, versiones de firmware de la serie USG FLEX 50(W) de 4.16 a 5.37 El parche 1 y las versiones de firmware de la serie USG20(W)-VPN desde 4.16 hasta 5.37. El parche 1 podr\u00eda permitir a un atacante lograr la ejecuci\u00f3n remota no autorizada de c\u00f3digo enviando una secuencia de payloads especialmente manipulados que contengan un puntero no v\u00e1lido; sin embargo, un ataque de este tipo requerir\u00eda un conocimiento detallado del dise\u00f1o y la configuraci\u00f3n de la memoria del dispositivo afectado.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@zyxel.com.tw\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":8.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.2,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"security@zyxel.com.tw\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-134\"}]}],\"references\":[{\"url\":\"https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-aps-02-20-2024\",\"source\":\"security@zyxel.com.tw\"},{\"url\":\"https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-aps-02-20-2024\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.