FKIE_CVE-2020-27212

Vulnerability from fkie_nvd - Published: 2021-05-21 12:15 - Updated: 2024-11-21 05:20
Severity ?
7.0 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
STMicroelectronics STM32L4 devices through 2020-10-19 have incorrect access control. The flash read-out protection (RDP) can be degraded from RDP level 2 (no access via debug interface) to level 1 (limited access via debug interface) by injecting a fault during the boot phase.
References
cve@mitre.orghttps://eprint.iacr.org/2021/640Third Party Advisory
cve@mitre.orghttps://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.htmlThird Party Advisory
cve@mitre.orghttps://www.aisec.fraunhofer.de/en/FirmwareProtection.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://eprint.iacr.org/2021/640Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.aisec.fraunhofer.de/en/FirmwareProtection.htmlThird Party Advisory
Impacted products
Vendor Product Version
st stm32cubel4_firmware *
st stm32l412c8 -
st stm32l412cb -
st stm32l412k8 -
st stm32l412kb -
st stm32l412r8 -
st stm32l412rb -
st stm32l412t8 -
st stm32l412tb -
st stm32l422cb -
st stm32l422kb -
st stm32l422rb -
st stm32l422tb -
st stm32l431cb -
st stm32l431cc -
st stm32l431kb -
st stm32l431kc -
st stm32l431rb -
st stm32l431rc -
st stm32l431vc -
st stm32l432kb -
st stm32l432kc -
st stm32l433cb -
st stm32l433cc -
st stm32l433rb -
st stm32l433rc -
st stm32l433vc -
st stm32l442kc -
st stm32l443cc -
st stm32l443rc -
st stm32l443vc -
st stm32l451cc -
st stm32l451ce -
st stm32l451rc -
st stm32l451re -
st stm32l451vc -
st stm32l451ve -
st stm32l452cc -
st stm32l452ce -
st stm32l452rc -
st stm32l452re -
st stm32l452vc -
st stm32l452ve -
st stm32l462ce -
st stm32l462re -
st stm32l462ve -
st stm32l471qe -
st stm32l471qg -
st stm32l471re -
st stm32l471rg -
st stm32l471ve -
st stm32l471vg -
st stm32l471ze -
st stm32l471zg -
st stm32l475rc -
st stm32l475re -
st stm32l475rg -
st stm32l475vc -
st stm32l475ve -
st stm32l475vg -
st stm32l476je -
st stm32l476jg -
st stm32l476me -
st stm32l476mg -
st stm32l476qe -
st stm32l476qg -
st stm32l476rc -
st stm32l476re -
st stm32l476rg -
st stm32l476vc -
st stm32l476ve -
st stm32l476vg -
st stm32l476ze -
st stm32l476zg -
st stm32l486jg -
st stm32l486qg -
st stm32l486rg -
st stm32l486vg -
st stm32l486zg -
st stm32l496ae -
st stm32l496ag -
st stm32l496qe -
st stm32l496qg -
st stm32l496re -
st stm32l496rg -
st stm32l496ve -
st stm32l496vg -
st stm32l496wg -
st stm32l496ze -
st stm32l496zg -
st stm32l4a6ag -
st stm32l4a6qg -
st stm32l4a6rg -
st stm32l4a6vg -
st stm32l4a6zg -
To clipboard 

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          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "STMicroelectronics STM32L4 devices through 2020-10-19 have incorrect access control. The flash read-out protection (RDP) can be degraded from RDP level 2 (no access via debug interface) to level 1 (limited access via debug interface) by injecting a fault during the boot phase."
    },
    {
      "lang": "es",
      "value": "Los dispositivos STMicroelectronics STM32L4 versi\u00f3n hasta el 2020-10-19, presentan un control de acceso incorrecto.\u0026#xa0;La protecci\u00f3n de lectura flash (RDP) se puede degradar desde el nivel 2 de RDP (sin acceso por medio de la interfaz de depuraci\u00f3n) al nivel 1 (acceso limitado por medio de la interfaz de depuraci\u00f3n) inyectando un fallo durante la fase de arranque"
    }
  ],
  "id": "CVE-2020-27212",
  "lastModified": "2024-11-21T05:20:51.937",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.4,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 3.4,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.0,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-05-21T12:15:07.730",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://eprint.iacr.org/2021/640"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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      ],
      "url": "https://www.aisec.fraunhofer.de/en/FirmwareProtection.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      ],
      "url": "https://eprint.iacr.org/2021/640"
    },
    {
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      "tags": [
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      ],
      "url": "https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html"
    },
    {
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      "tags": [
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      ],
      "url": "https://www.aisec.fraunhofer.de/en/FirmwareProtection.html"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-74"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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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.