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.

CVSS v3.0 6.8 MEDIUM
CVSS v2.0 7.2 HIGH

6.8^/10

CVSS v3.0 : MEDIUM

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

7.2^/10

CVSS v2.0 : HIGH

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

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

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Configurations

Configuration 1 (hide)

OR	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 09:15

Updated : 2020-08-24 10:37

NVD link : CVE-2019-15894

Mitre link : CVE-2019-15894

JSON object : View

CWE

CWE-755

Improper Handling of Exceptional Conditions

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Products Affected

espressif

esp-idf

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