CVE-2023-4474 (GCVE-0-2023-4474)

Vulnerability from cvelistv5 – Published: 2023-11-30 01:45 – Updated: 2025-02-13 17:13
VLAI?
Summary
The improper neutralization of special elements in the WSGI server of the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands by sending a crafted URL to a vulnerable device.
Severity ?
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
Impacted products
Vendor Product Version
Zyxel NAS326 firmware Affected: V5.21(AAZF.14)C0
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:o:zyxel:nas326_firmware:5.21\\(aazf.14\\)c0:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "nas326_firmware",
            "vendor": "zyxel",
            "versions": [
              {
                "status": "affected",
                "version": "5.21\\(aazf.14\\)c0"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:zyxel:nas542_firmware:5.21\\(abag.11\\)c0:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "nas542_firmware",
            "vendor": "zyxel",
            "versions": [
              {
                "status": "affected",
                "version": "5.21\\(abag.11\\)c0"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-4474",
                "options": [
                  {
                    "Exploitation": "PoC"
                  },
                  {
                    "Automatable": "Yes"
                  },
                  {
                    "Technical Impact": "Total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-03T04:00:16.790117Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:27:14.751Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T07:31:05.490Z",
          "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-authentication-bypass-and-command-injection-vulnerabilities-in-nas-products"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugprove.com/knowledge-hub/cve-2023-4473-and-cve-2023-4474-authentication-bypass-and-multiple-blind-os-command-injection-vulnerabilities-in-zyxel-s-nas-326-devices/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "NAS326 firmware",
          "vendor": "Zyxel",
          "versions": [
            {
              "status": "affected",
              "version": "V5.21(AAZF.14)C0"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "NAS542 firmware",
          "vendor": "Zyxel",
          "versions": [
            {
              "status": "affected",
              "version": "V5.21(ABAG.11)C0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "The improper neutralization of special elements in the WSGI server of the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands by sending a crafted URL to a vulnerable device."
            }
          ],
          "value": "The improper neutralization of special elements in the WSGI server of the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands by sending a crafted URL to a vulnerable device."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/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-78",
              "description": "CWE-78 Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-12-06T01:37:39.050Z",
        "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-authentication-bypass-and-command-injection-vulnerabilities-in-nas-products"
        },
        {
          "url": "https://bugprove.com/knowledge-hub/cve-2023-4473-and-cve-2023-4474-authentication-bypass-and-multiple-blind-os-command-injection-vulnerabilities-in-zyxel-s-nas-326-devices/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "96e50032-ad0d-4058-a115-4d2c13821f9f",
    "assignerShortName": "Zyxel",
    "cveId": "CVE-2023-4474",
    "datePublished": "2023-11-30T01:45:29.920Z",
    "dateReserved": "2023-08-22T06:51:34.440Z",
    "dateUpdated": "2025-02-13T17:13:42.559Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "fkie_nvd": {
      "configurations": "[{\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:zyxel:nas326_firmware:*:*:*:*:*:*:*:*\", \"versionEndIncluding\": \"5.21\\\\(aazf.14\\\\)c0\", \"matchCriteriaId\": \"897157F4-9F3E-4F03-91DF-6223C1BAA451\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:zyxel:nas326:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"E0A01B19-4A91-4FBC-8447-2E854346DAC5\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:zyxel:nas542_firmware:*:*:*:*:*:*:*:*\", \"versionEndIncluding\": \"5.21\\\\(abag.11\\\\)c0\", \"matchCriteriaId\": \"0A0D05F3-0FBD-43D0-8041-2AAF822B83C5\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:zyxel:nas542:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"31C4DD0F-28D0-4BF7-897B-5EEC32AA7277\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"The improper neutralization of special elements in the WSGI server of the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands by sending a crafted URL to a vulnerable device.\"}, {\"lang\": \"es\", \"value\": \"La neutralizaci\\u00f3n inadecuada de elementos especiales en el servidor WSGI del firmware Zyxel NAS326 versi\\u00f3n V5.21(AAZF.14)C0 y NAS542 versi\\u00f3n V5.21(ABAG.11)C0 podr\\u00eda permitir que un atacante no autenticado ejecute alg\\u00fan sistema operativo (OS ) comandos enviando una URL manipulada a un dispositivo vulnerable.\"}]",
      "id": "CVE-2023-4474",
      "lastModified": "2024-11-21T08:35:14.640",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"security@zyxel.com.tw\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 9.8, \"baseSeverity\": \"CRITICAL\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 5.9}]}",
      "published": "2023-11-30T02:15:43.553",
      "references": "[{\"url\": \"https://bugprove.com/knowledge-hub/cve-2023-4473-and-cve-2023-4474-authentication-bypass-and-multiple-blind-os-command-injection-vulnerabilities-in-zyxel-s-nas-326-devices/\", \"source\": \"security@zyxel.com.tw\"}, {\"url\": \"https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-authentication-bypass-and-command-injection-vulnerabilities-in-nas-products\", \"source\": \"security@zyxel.com.tw\", \"tags\": [\"Patch\", \"Vendor Advisory\"]}, {\"url\": \"https://bugprove.com/knowledge-hub/cve-2023-4473-and-cve-2023-4474-authentication-bypass-and-multiple-blind-os-command-injection-vulnerabilities-in-zyxel-s-nas-326-devices/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-authentication-bypass-and-command-injection-vulnerabilities-in-nas-products\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\", \"Vendor Advisory\"]}]",
      "sourceIdentifier": "security@zyxel.com.tw",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"security@zyxel.com.tw\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-78\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-4474\",\"sourceIdentifier\":\"security@zyxel.com.tw\",\"published\":\"2023-11-30T02:15:43.553\",\"lastModified\":\"2024-11-21T08:35:14.640\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The improper neutralization of special elements in the WSGI server of the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands by sending a crafted URL to a vulnerable device.\"},{\"lang\":\"es\",\"value\":\"La neutralizaci\u00f3n inadecuada de elementos especiales en el servidor WSGI del firmware Zyxel NAS326 versi\u00f3n V5.21(AAZF.14)C0 y NAS542 versi\u00f3n V5.21(ABAG.11)C0 podr\u00eda permitir que un atacante no autenticado ejecute alg\u00fan sistema operativo (OS ) comandos enviando una URL manipulada a un dispositivo vulnerable.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@zyxel.com.tw\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"security@zyxel.com.tw\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-78\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:zyxel:nas326_firmware:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"5.21\\\\(aazf.14\\\\)c0\",\"matchCriteriaId\":\"897157F4-9F3E-4F03-91DF-6223C1BAA451\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:zyxel:nas326:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E0A01B19-4A91-4FBC-8447-2E854346DAC5\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:zyxel:nas542_firmware:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"5.21\\\\(abag.11\\\\)c0\",\"matchCriteriaId\":\"0A0D05F3-0FBD-43D0-8041-2AAF822B83C5\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:zyxel:nas542:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"31C4DD0F-28D0-4BF7-897B-5EEC32AA7277\"}]}]}],\"references\":[{\"url\":\"https://bugprove.com/knowledge-hub/cve-2023-4473-and-cve-2023-4474-authentication-bypass-and-multiple-blind-os-command-injection-vulnerabilities-in-zyxel-s-nas-326-devices/\",\"source\":\"security@zyxel.com.tw\"},{\"url\":\"https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-authentication-bypass-and-command-injection-vulnerabilities-in-nas-products\",\"source\":\"security@zyxel.com.tw\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://bugprove.com/knowledge-hub/cve-2023-4473-and-cve-2023-4474-authentication-bypass-and-multiple-blind-os-command-injection-vulnerabilities-in-zyxel-s-nas-326-devices/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-authentication-bypass-and-command-injection-vulnerabilities-in-nas-products\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Vendor Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-authentication-bypass-and-command-injection-vulnerabilities-in-nas-products\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://bugprove.com/knowledge-hub/cve-2023-4473-and-cve-2023-4474-authentication-bypass-and-multiple-blind-os-command-injection-vulnerabilities-in-zyxel-s-nas-326-devices/\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T07:31:05.490Z\"}}, {\"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-4474\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"PoC\"}, {\"Automatable\": \"Yes\"}, {\"Technical Impact\": \"Total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-05-03T04:00:16.790117Z\"}}}], \"affected\": [{\"cpes\": [\"cpe:2.3:o:zyxel:nas326_firmware:5.21\\\\(aazf.14\\\\)c0:*:*:*:*:*:*:*\"], \"vendor\": \"zyxel\", \"product\": \"nas326_firmware\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.21\\\\(aazf.14\\\\)c0\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:o:zyxel:nas542_firmware:5.21\\\\(abag.11\\\\)c0:*:*:*:*:*:*:*\"], \"vendor\": \"zyxel\", \"product\": \"nas542_firmware\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.21\\\\(abag.11\\\\)c0\"}], \"defaultStatus\": \"unknown\"}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-03T13:14:19.981Z\"}, \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"source\": {\"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 9.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Zyxel\", \"product\": \"NAS326 firmware\", \"versions\": [{\"status\": \"affected\", \"version\": \"V5.21(AAZF.14)C0\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"Zyxel\", \"product\": \"NAS542 firmware\", \"versions\": [{\"status\": \"affected\", \"version\": \"V5.21(ABAG.11)C0\"}], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-authentication-bypass-and-command-injection-vulnerabilities-in-nas-products\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://bugprove.com/knowledge-hub/cve-2023-4473-and-cve-2023-4474-authentication-bypass-and-multiple-blind-os-command-injection-vulnerabilities-in-zyxel-s-nas-326-devices/\"}], \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-dev\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"The improper neutralization of special elements in the WSGI server of the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands by sending a crafted URL to a vulnerable device.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"The improper neutralization of special elements in the WSGI server of the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands by sending a crafted URL to a vulnerable device.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-78\", \"description\": \"CWE-78 Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"96e50032-ad0d-4058-a115-4d2c13821f9f\", \"shortName\": \"Zyxel\", \"dateUpdated\": \"2023-12-06T01:37:39.050Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-4474\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-02-13T17:13:42.559Z\", \"dateReserved\": \"2023-08-22T06:51:34.440Z\", \"assignerOrgId\": \"96e50032-ad0d-4058-a115-4d2c13821f9f\", \"datePublished\": \"2023-11-30T01:45:29.920Z\", \"assignerShortName\": \"Zyxel\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.