fkie_cve-2018-18558
Vulnerability from fkie_nvd
Published
2019-05-13 13:29
Modified
2024-11-21 03:56
Severity ?
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
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:espressif:esp-idf:*:*:*:*:*:*:*:*",
"matchCriteriaId": "A16A6B0D-D949-4CD3-B16B-66B56E381F6C",
"versionEndExcluding": "3.0.6",
"versionStartIncluding": "2.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:espressif:esp-idf:*:*:*:*:*:*:*:*",
"matchCriteriaId": "B969656A-0BC9-4869-96FE-0D08C9EBB83D",
"versionEndIncluding": "3.1.1",
"versionStartIncluding": "3.1",
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"negate": false,
"operator": "OR"
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"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",
"cvssData": {
"accessComplexity": "MEDIUM",
"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"
},
"exploitabilityScore": 3.4,
"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": {
"attackComplexity": "HIGH",
"attackVector": "PHYSICAL",
"availabilityImpact": "HIGH",
"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",
"version": "3.0"
},
"exploitabilityScore": 0.5,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
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},
"published": "2019-05-13T13:29:02.103",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Release Notes",
"Third Party Advisory"
],
"url": "https://github.com/espressif/esp-idf/releases"
},
{
"source": "cve@mitre.org",
"url": "https://www.espressif.com/en/news/Espressif_Product_Security_Advisory_Concerning_Secure_Boot_%28CVE-2018-18558%29"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"url": "https://github.com/espressif/esp-idf/releases"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://www.espressif.com/en/news/Espressif_Product_Security_Advisory_Concerning_Secure_Boot_%28CVE-2018-18558%29"
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"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
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"description": [
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"lang": "en",
"value": "CWE-20"
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],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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