cve-2024-53845
Vulnerability from cvelistv5
Published
2024-12-11 22:35
Modified
2024-12-12 16:35
Severity ?
EPSS score ?
Summary
ESPTouch is a connection protocol for internet of things devices. In the ESPTouchV2 protocol, while there is an option to use a custom AES key, there is no option to set the IV (Initialization Vector) prior to versions 5.3.2, 5.2.4, 5.1.6, and 5.0.8. The IV is set to zero and remains constant throughout the product's lifetime. In AES/CBC mode, if the IV is not properly initialized, the encrypted output becomes deterministic, leading to potential data leakage. To address the aforementioned issues, the application generates a random IV when activating the AES key starting in versions 5.3.2, 5.2.4, 5.1.6, and 5.0.8. This IV is then transmitted along with the provision data to the provision device. The provision device has also been equipped with a parser for the AES IV. The upgrade is applicable for all applications and users of ESPTouch v2 component from ESP-IDF. As it is implemented in the ESP Wi-Fi stack, there is no workaround for the user to fix the application layer without upgrading the underlying firmware.
References
Impacted products
{
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"content": {
"id": "CVE-2024-53845",
"options": [
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"Exploitation": "none"
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"Automatable": "no"
},
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"Technical Impact": "partial"
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"role": "CISA Coordinator",
"timestamp": "2024-12-12T16:34:50.853994Z",
"version": "2.0.3"
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"cna": {
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"vendor": "espressif",
"versions": [
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"version": "\u003e= 5.3.0, \u003c 5.3.2"
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"version": "\u003e= 5.2.0, \u003c 5.2.4"
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"value": "ESPTouch is a connection protocol for internet of things devices. In the ESPTouchV2 protocol, while there is an option to use a custom AES key, there is no option to set the IV (Initialization Vector) prior to versions 5.3.2, 5.2.4, 5.1.6, and 5.0.8. The IV is set to zero and remains constant throughout the product\u0027s lifetime. In AES/CBC mode, if the IV is not properly initialized, the encrypted output becomes deterministic, leading to potential data leakage. To address the aforementioned issues, the application generates a random IV when activating the AES key starting in versions 5.3.2, 5.2.4, 5.1.6, and 5.0.8. This IV is then transmitted along with the provision data to the provision device. The provision device has also been equipped with a parser for the AES IV. The upgrade is applicable for all applications and users of ESPTouch v2 component from ESP-IDF. As it is implemented in the ESP Wi-Fi stack, there is no workaround for the user to fix the application layer without upgrading the underlying firmware."
}
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"url": "https://github.com/espressif/esp-idf/commit/de69895f38d563e22228f5ba23fffa02feabc3a9"
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"url": "https://github.com/espressif/esp-idf/commit/fd224e83bbf133833638b277c767be7f7cdd97c7"
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"url": "https://github.com/EspressifApp/EsptouchForAndroid/tree/master/esptouch-v2"
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{
"name": "https://github.com/EspressifApp/EsptouchForIOS/tree/master/EspTouchDemo/ESPTouchV2",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/EspressifApp/EsptouchForIOS/tree/master/EspTouchDemo/ESPTouchV2"
},
{
"name": "https://github.com/espressif/esp-idf/tree/master/components/esp_wifi",
"tags": [
"x_refsource_MISC"
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"url": "https://github.com/espressif/esp-idf/tree/master/components/esp_wifi"
}
],
"source": {
"advisory": "GHSA-wm57-466g-mhrr",
"discovery": "UNKNOWN"
},
"title": "AES/CBC Constant IV Vulnerability in ESPTouch v2"
}
},
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"cveId": "CVE-2024-53845",
"datePublished": "2024-12-11T22:35:48.528Z",
"dateReserved": "2024-11-22T17:30:02.139Z",
"dateUpdated": "2024-12-12T16:35:00.685Z",
"state": "PUBLISHED"
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"nvd": "{\"cve\":{\"id\":\"CVE-2024-53845\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2024-12-12T02:15:29.087\",\"lastModified\":\"2024-12-12T02:15:29.087\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"ESPTouch is a connection protocol for internet of things devices. In the ESPTouchV2 protocol, while there is an option to use a custom AES key, there is no option to set the IV (Initialization Vector) prior to versions 5.3.2, 5.2.4, 5.1.6, and 5.0.8. The IV is set to zero and remains constant throughout the product\u0027s lifetime. In AES/CBC mode, if the IV is not properly initialized, the encrypted output becomes deterministic, leading to potential data leakage. To address the aforementioned issues, the application generates a random IV when activating the AES key starting in versions 5.3.2, 5.2.4, 5.1.6, and 5.0.8. This IV is then transmitted along with the provision data to the provision device. The provision device has also been equipped with a parser for the AES IV. The upgrade is applicable for all applications and users of ESPTouch v2 component from ESP-IDF. As it is implemented in the ESP Wi-Fi stack, there is no workaround for the user to fix the application layer without upgrading the underlying firmware.\"},{\"lang\":\"es\",\"value\":\"ESPTouch es un protocolo de conexi\u00f3n para dispositivos de Internet de las cosas. En el protocolo ESPTouchV2, si bien existe una opci\u00f3n para usar una clave AES personalizada, no existe una opci\u00f3n para configurar el IV (vector de inicializaci\u00f3n) en versiones anteriores a 5.3.2, 5.2.4, 5.1.6 y 5.0.8. El IV se configura en cero y permanece constante durante toda la vida \u00fatil del producto. En el modo AES/CBC, si el IV no se inicializa correctamente, la salida cifrada se vuelve determinista, lo que genera una posible fuga de datos. Para solucionar los problemas mencionados anteriormente, la aplicaci\u00f3n genera un IV aleatorio al activar la clave AES a partir de las versiones 5.3.2, 5.2.4, 5.1.6 y 5.0.8. Luego, este IV se transmite junto con los datos de provisi\u00f3n al dispositivo de provisi\u00f3n. El dispositivo de provisi\u00f3n tambi\u00e9n ha sido equipado con un analizador para el IV AES. La actualizaci\u00f3n es aplicable para todas las aplicaciones y usuarios del componente ESPTouch v2 de ESP-IDF. Como est\u00e1 implementado en la pila Wi-Fi ESP, no existe ninguna soluci\u00f3n alternativa para que el usuario arregle la capa de aplicaci\u00f3n sin actualizar el firmware subyacente.\"}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":6.6,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnerableSystemConfidentiality\":\"HIGH\",\"vulnerableSystemIntegrity\":\"NONE\",\"vulnerableSystemAvailability\":\"NONE\",\"subsequentSystemConfidentiality\":\"NONE\",\"subsequentSystemIntegrity\":\"NONE\",\"subsequentSystemAvailability\":\"NONE\",\"exploitMaturity\":\"UNREPORTED\",\"confidentialityRequirements\":\"NOT_DEFINED\",\"integrityRequirements\":\"NOT_DEFINED\",\"availabilityRequirements\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnerableSystemConfidentiality\":\"NOT_DEFINED\",\"modifiedVulnerableSystemIntegrity\":\"NOT_DEFINED\",\"modifiedVulnerableSystemAvailability\":\"NOT_DEFINED\",\"modifiedSubsequentSystemConfidentiality\":\"NOT_DEFINED\",\"modifiedSubsequentSystemIntegrity\":\"NOT_DEFINED\",\"modifiedSubsequentSystemAvailability\":\"NOT_DEFINED\",\"safety\":\"NOT_DEFINED\",\"automatable\":\"NOT_DEFINED\",\"recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-327\"},{\"lang\":\"en\",\"value\":\"CWE-909\"}]}],\"references\":[{\"url\":\"https://github.com/EspressifApp/EsptouchForAndroid/tree/master/esptouch-v2\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/EspressifApp/EsptouchForIOS/tree/master/EspTouchDemo/ESPTouchV2\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/espressif/esp-idf/commit/4f85a2726e04b737c8646d865b44ddd837b703db\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/espressif/esp-idf/commit/8fb28dcedcc49916a5206456a3a61022d4302cd8\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/espressif/esp-idf/commit/d47ed7d6f814e21c5bc8997ab0bc68e2360e5cb2\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/espressif/esp-idf/commit/de69895f38d563e22228f5ba23fffa02feabc3a9\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/espressif/esp-idf/commit/fd224e83bbf133833638b277c767be7f7cdd97c7\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/espressif/esp-idf/security/advisories/GHSA-wm57-466g-mhrr\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/espressif/esp-idf/tree/master/components/esp_wifi\",\"source\":\"security-advisories@github.com\"}]}}"
}
}
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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.