CVE Vulnerability

CVE-2019-15894

An issue was discovered in Espressif ESP-IDF 2.x, 3.0.x through 3.0.9, 3.1.x through 3.1.6, 3.2.x through 3.2.3, and 3.3.x through 3.3.1. An attacker who uses fault injection to physically disrupt the ESP32 CPU can bypass the Secure Boot digest verification at startup, and boot unverified code from flash. The fault injection attack does not disable the Flash Encryption feature, so if the ESP32 is configured with the recommended combination of Secure Boot and Flash Encryption, then the impact is minimized. If the ESP32 is configured without Flash Encryption then successful fault injection allows arbitrary code execution. To protect devices with Flash Encryption and Secure Boot enabled against this attack, a firmware change must be made to permanently enable Flash Encryption in the field if it is not already permanently enabled.

7.2 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

6.8 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 0.9 / Impact : 5.9

Attack Vector PHYSICAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://www.espressif.com/en/news/Espressif_Security_Advisory_Concerning_Fault_Injection_and_Secure_Boot Mitigation Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:espressif:esp-idf:*:*:*:*:*:*:*:*
cpe:2.3:a:espressif:esp-idf:*:*:*:*:*:*:*:*
cpe:2.3:a:espressif:esp-idf:*:*:*:*:*:*:*:*
cpe:2.3:a:espressif:esp-idf:*:*:*:*:*:*:*:*
Information

Published : 2019-10-07 04:15

Updated : 2020-08-24 05:37

NVD link : CVE-2019-15894

Mitre link : CVE-2019-15894

Products Affected
No products.
CWE
CWE-1332

Improper Handling of Faults that Lead to Instruction Skips