CVE-2024-28183
Anti Rollback bypass with physical access and TOCTOU attack
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
ESP-IDF is the development framework for Espressif SoCs supported on Windows, Linux and macOS. A Time-of-Check to Time-of-Use (TOCTOU) vulnerability was discovered in the implementation of the ESP-IDF bootloader which could allow an attacker with physical access to flash of the device to bypass anti-rollback protection. Anti-rollback prevents rollback to application with security version lower than one programmed in eFuse of chip. This attack can allow to boot past (passive) application partition having lower security version of the same device even in the presence of the flash encryption scheme. The attack requires carefully modifying the flash contents after the anti-rollback checks have been performed by the bootloader (before loading the application). The vulnerability is fixed in 4.4.7 and 5.2.1.
ESP-IDF es el framework de desarrollo para los SoC de Espressif compatibles con Windows, Linux y macOS. Se descubrió una vulnerabilidad de tiempo de verificación a tiempo de uso (TOCTOU) en la implementación del gestor de arranque ESP-IDF que podría permitir a un atacante con acceso físico a la memoria flash del dispositivo eludir la protección anti-retroceso. Anti-rollback evita el retroceso a una aplicación con una versión de seguridad inferior a la programada en eFuse del chip. Este ataque puede permitir arrancar más allá de la partición de la aplicación (pasiva) que tiene una versión de menor seguridad del mismo dispositivo, incluso en presencia del esquema de cifrado flash. El ataque requiere modificar cuidadosamente el contenido flash después de que el gestor de arranque haya realizado las comprobaciones anti-retroceso (antes de cargar la aplicación). La vulnerabilidad se solucionó en 4.4.7 y 5.2.1.
CVSS Scores
SSVC
- Decision:Track
Timeline
- 2024-03-06 CVE Reserved
- 2024-03-25 CVE Published
- 2024-03-26 EPSS Updated
- 2024-08-02 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition
CAPEC
References (8)
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
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| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Espressif Search vendor "Espressif" | Esp-idf Search vendor "Espressif" for product "Esp-idf" | < 4.4.7 Search vendor "Espressif" for product "Esp-idf" and version " < 4.4.7" | en |
Affected
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| Espressif Search vendor "Espressif" | Esp-idf Search vendor "Espressif" for product "Esp-idf" | >= 5.0.0 <= 5.0.6 Search vendor "Espressif" for product "Esp-idf" and version " >= 5.0.0 <= 5.0.6" | en |
Affected
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| Espressif Search vendor "Espressif" | Esp-idf Search vendor "Espressif" for product "Esp-idf" | >= 5.1.0 <= 5.1.3 Search vendor "Espressif" for product "Esp-idf" and version " >= 5.1.0 <= 5.1.3" | en |
Affected
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| Espressif Search vendor "Espressif" | Esp-idf Search vendor "Espressif" for product "Esp-idf" | >= 5.2.0 < 5.2.1 Search vendor "Espressif" for product "Esp-idf" and version " >= 5.2.0 < 5.2.1" | en |
Affected
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