FKIE_CVE-2018-18068

Vulnerability from fkie_nvd - Published: 2019-04-04 20:29 - Updated: 2024-11-21 03:55
Severity ?
9.8 (Critical) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
The ARM-based hardware debugging feature on Raspberry Pi 3 module B+ and possibly other devices allows non-secure EL1 code to read/write any EL3 (the highest privilege level in ARMv8) memory/register via inter-processor debugging. With a debug host processor A running in non-secure EL1 and a debug target processor B running in any privilege level, the debugging feature allows A to halt B and promote B to any privilege level. As a debug host, A has full control of B even if B owns a higher privilege level than A. Accordingly, A can read/write any EL3 memory/register via B. Also, with this memory access, A can execute arbitrary code in EL3.
References
cve@mitre.orghttp://www.cs.wayne.edu/fengwei/paper/nailgun-sp19.pdfExploit, Technical Description, Third Party Advisory
cve@mitre.orghttps://www.computer.org/csdl/proceedings-article/sp/2019/666000b157/17D45WHONhvThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.cs.wayne.edu/fengwei/paper/nailgun-sp19.pdfExploit, Technical Description, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.computer.org/csdl/proceedings-article/sp/2019/666000b157/17D45WHONhvThird Party Advisory
Impacted products
Vendor Product Version
raspberrypi raspberry_pi_3_model_b\+_firmware -
raspberrypi raspberry_pi_3_model_b\+ -
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The ARM-based hardware debugging feature on Raspberry Pi 3 module B+ and possibly other devices allows non-secure EL1 code to read/write any EL3 (the highest privilege level in ARMv8) memory/register via inter-processor debugging. With a debug host processor A running in non-secure EL1 and a debug target processor B running in any privilege level, the debugging feature allows A to halt B and promote B to any privilege level. As a debug host, A has full control of B even if B owns a higher privilege level than A. Accordingly, A can read/write any EL3 memory/register via B. Also, with this memory access, A can execute arbitrary code in EL3."
    },
    {
      "lang": "es",
      "value": "La funcionalidad de depuraci\u00f3n de hardware basada en ARM en el m\u00f3dulo B+ de Raspberry Pi 3 y, posiblemente otros dispositivos, permite que un c\u00f3digo EL1 inseguro lea/escriba cualquier memoria/registro EL3 (el nivel de privilegios m\u00e1s alto en ARMv8) mediante un proceso de depuraci\u00f3n de interprocesador. Con un procesador de depuraci\u00f3n host \"A\" que opera con c\u00f3digo EL1 inseguro y un procesador de depuraci\u00f3n objetivo B que opera con cualquier nivel de privilegios, la funcionalidad de depuraci\u00f3n permite a \"A\" detener \"B\" y asciende \"B\" a cualquier nivel de privilegios. Como host de depuraci\u00f3n, A tiene el control total sobre B aunque B posee a nivel de privilegios m\u00e1s alto que A. Por consiguiente, A puede leer/escribir cualquier memoria/registro EL3 a trav\u00e9s de B. Asimismo, con este acceso a la memoria, A puede ejecutar c\u00f3digo arbitrario en EL3 tambi\u00e9n."
    }
  ],
  "id": "CVE-2018-18068",
  "lastModified": "2024-11-21T03:55:25.750",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 10.0,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
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    "cvssMetricV30": [
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        "cvssData": {
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          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.0"
        },
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        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
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  "published": "2019-04-04T20:29:00.220",
  "references": [
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      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Technical Description",
        "Third Party Advisory"
      ],
      "url": "http://www.cs.wayne.edu/fengwei/paper/nailgun-sp19.pdf"
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      "source": "cve@mitre.org",
      "tags": [
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      "url": "https://www.computer.org/csdl/proceedings-article/sp/2019/666000b157/17D45WHONhv"
    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://www.computer.org/csdl/proceedings-article/sp/2019/666000b157/17D45WHONhv"
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-668"
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      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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