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.

CVSS v3.0 6.2 MEDIUM
CVSS v2.0 1.9 LOW

6.2^/10

CVSS v3.0 : MEDIUM

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

1.9^/10

CVSS v2.0 : LOW

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

Exploitability : 3.4 / Impact : 2.9

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

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

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Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:st:stsafe-j_firmware:1.1.4:*:*:*:*:*:*:*

cpe:2.3:h:st:stsafe-j:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:st:j-safe3_firmware:1.2.5:*:*:*:*:*:*:*

cpe:2.3:h:st:j-safe3:-:*:*:*:*:*:*:*

Information

Published : 2022-03-04 05:15

Updated : 2022-03-10 07:05

NVD link : CVE-2021-43393

Mitre link : CVE-2021-43393

JSON object : View

CWE

CWE-347

Improper Verification of Cryptographic Signature

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Products Affected

st

j-safe3
j-safe3_firmware
stsafe-j_firmware
stsafe-j

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