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CVE-2023-34335

Estado: ModificadaCrítica (9.1)—

AMI BMC contains a vulnerability in the IPMI handler, where an unauthenticated host is allowed to write to a host SPI flash, bypassing secure boot protections. An exploitation of this vulnerability may lead to a loss of integrity or denial of service.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

AMI — Megarac SPX

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2023-34335",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-34335",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-01-03T18:57:01.151997Z"
        }
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    ],
    "cvssMetricV31": [
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        "cvssData": {
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          "baseScore": 7.7,
          "attackVector": "LOCAL",
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 2.5
      },
      {
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        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
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          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
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          "confidentialityImpact": "NONE"
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          "vendor": "AMI",
          "product": "MegaRAC_SPx",
          "versions": [
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          "platforms": [
            "ARM"
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          "defaultStatus": "unaffected"
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  "published": "2023-06-12T18:15:10.320",
  "references": [
    {
      "url": "https://9443417.fs1.hubspotusercontent-na1.net/hubfs/9443417/Security%20Advisories/AMI-SA-2023005.pdf",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "biossecurity@ami.com"
    },
    {
      "url": "https://9443417.fs1.hubspotusercontent-na1.net/hubfs/9443417/Security%20Advisories/AMI-SA-2023005.pdf",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "biossecurity@ami.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-288"
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    },
    {
      "type": "Primary",
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      "description": [
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          "value": "CWE-306"
        }
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    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "AMI BMC contains a vulnerability in the IPMI handler, where an\nunauthenticated host is allowed to write to a host SPI flash, bypassing secure\nboot protections. An exploitation of this vulnerability may lead to a loss of\nintegrity or denial of service.\n\n\n\n\n\n \n\n\n\n\n\n\n\n"
    }
  ],
  "lastModified": "2026-06-17T06:03:25.073",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:ami:megarac_spx:*:*:*:*:*:*:*:*",
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          "operator": "OR"
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  ],
  "sourceIdentifier": "biossecurity@ami.com"
}