FKIE_CVE-2018-18558

Vulnerability from fkie_nvd - Published: 2019-05-13 13:29 - Updated: 2024-11-21 03:56
Severity ?
6.4 (Medium) - CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
An issue was discovered in Espressif ESP-IDF 2.x and 3.x before 3.0.6 and 3.1.x before 3.1.1. Insufficient validation of input data in the 2nd stage bootloader allows a physically proximate attacker to bypass secure boot checks and execute arbitrary code, by crafting an application binary that overwrites a bootloader code segment in process_segment in components/bootloader_support/src/esp_image_format.c. The attack is effective when the flash encryption feature is not enabled, or if the attacker finds a different vulnerability that allows them to write this binary to flash memory.
References
cve@mitre.orghttps://github.com/espressif/esp-idf/releasesRelease Notes, Third Party Advisory
cve@mitre.orghttps://www.espressif.com/en/news/Espressif_Product_Security_Advisory_Concerning_Secure_Boot_%28CVE-2018-18558%29
af854a3a-2127-422b-91ae-364da2661108https://github.com/espressif/esp-idf/releasesRelease Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.espressif.com/en/news/Espressif_Product_Security_Advisory_Concerning_Secure_Boot_%28CVE-2018-18558%29
Impacted products
Vendor Product Version
espressif esp-idf *
espressif esp-idf *
To clipboard 

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    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:espressif:esp-idf:*:*:*:*:*:*:*:*",
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  "descriptions": [
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      "value": "An issue was discovered in Espressif ESP-IDF 2.x and 3.x before 3.0.6 and 3.1.x before 3.1.1. Insufficient validation of input data in the 2nd stage bootloader allows a physically proximate attacker to bypass secure boot checks and execute arbitrary code, by crafting an application binary that overwrites a bootloader code segment in process_segment in components/bootloader_support/src/esp_image_format.c. The attack is effective when the flash encryption feature is not enabled, or if the attacker finds a different vulnerability that allows them to write this binary to flash memory."
    },
    {
      "lang": "es",
      "value": "Se descubri\u00f3 un problema en Espressif ESP-IDF versi\u00f3n 2.x y versi\u00f3n 3.x anterior a 3.0.6 y versi\u00f3n 3.1.x anterior a 3.1.1. La comprobaci\u00f3n insuficiente de los datos de entrada en el gestor de arranque de la segunda etapa permite que un atacante f\u00edsicamente pr\u00f3ximo omita las comprobaciones de arranque seguras y ejecute c\u00f3digo arbitrario, creando un binario de aplicaci\u00f3n que sobrescriba un segmento de c\u00f3digo del gestor de arranque en el par\u00e1metro process_segment en el archivo components/bootloader_support/src/esp_image_format.c. El ataque es exitoso cuando la funci\u00f3n de cifrado flash est\u00e1 inhabilitada, o si el atacante encuentra una vulnerabilidad distinta que le permite escribir este binario en la memoria flash."
    }
  ],
  "id": "CVE-2018-18558",
  "lastModified": "2024-11-21T03:56:09.217",
  "metrics": {
    "cvssMetricV2": [
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        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
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          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 6.9,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
          "version": "2.0"
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        "exploitabilityScore": 3.4,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
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        "userInteractionRequired": false
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          "baseScore": 6.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
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  "published": "2019-05-13T13:29:02.103",
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    },
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  "vulnStatus": "Modified",
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          "value": "CWE-20"
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      "source": "nvd@nist.gov",
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}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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