{
  "id": "CVE-2023-38320",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2023-11-17T06:15:33.667",
  "lastModified": "2024-11-21T08:13:19.533",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in OpenNDS Captive Portal before version 10.1.2. It has a show_preauthpage NULL pointer dereference that can be triggered with a crafted GET HTTP with a missing User-Agent header. Triggering this issue results in crashing OpenNDS (a Denial-of-Service condition). This problem was fixed in OpenWrt master, OpenWrt 23.05 and OpenWrt 22.03 on 28. August 2023 by updating OpenNDS to version 10.1.3."
    },
    {
      "lang": "es",
      "value": "Se descubri\u00f3 un problema en OpenNDS Captive Portal antes de la versi\u00f3n 10.1.2. Tiene una desreferencia del puntero NULL show_preauthpage que se puede activar con un GET HTTP manipulado al que le falta un encabezado User-Agent. La activaci\u00f3n de este problema provoca el bloqueo de OpenNDS (una condici\u00f3n de denegaci\u00f3n de servicio)."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:opennds:captive_portal:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "10.1.2",
              "matchCriteriaId": "41C7501E-5FCE-4728-A6DC-9DD6C0468496"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/openNDS/openNDS/releases/tag/v10.1.2",
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://github.com/openwrt/routing/commit/0b19771fb2dd81e7c428759610aed583171eed80",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://source.sierrawireless.com/resources/security-bulletins/sierra-wireless-technical-bulletin---swi-psa-2023-006/#sthash.2vJg3d85.dpbs",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/openNDS/openNDS/releases/tag/v10.1.2",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://github.com/openwrt/routing/commit/0b19771fb2dd81e7c428759610aed583171eed80",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://source.sierrawireless.com/resources/security-bulletins/sierra-wireless-technical-bulletin---swi-psa-2023-006/#sthash.2vJg3d85.dpbs",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}