CVE Vulnerability

CVE-2021-43393

STMicroelectronics STSAFE-J 1.1.4, J-SAFE3 1.2.5, and J-SIGN sometimes allow attackers to abuse signature verification. This is associated with the ECDSA signature algorithm on the Java Card J-SAFE3 and STSAFE-J platforms exposing a 3.0.4 Java Card API. It is exploitable for STSAFE-J in closed configuration and J-SIGN (when signature verification is activated) but not for J-SAFE3 EPASS BAC and EAC products. It might also impact other products based on the J-SAFE-3 Java Card platform.

1.9 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.4 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

6.2 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.5 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://www.cert.ssi.gouv.fr/avis/CERTFR-2022-AVI-169/ Third Party Advisory
https://community.st.com/s/toparticles Vendor Advisory
Configurations

Configuration 1
Information

Published : 2022-03-04 01:15

Updated : 2022-03-10 03:05

NVD link : CVE-2021-43393

Mitre link : CVE-2021-43393

Products Affected
No products.
CWE
CWE-347

Improper Verification of Cryptographic Signature