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CVE-2021-43393

Published: Mar 4, 2022Updated: Nov 21, 2024 Sources: CVE List NVDCWE-347
NVD MITRE
6.2CVSSMEDIUM
EPSS Score
0.1%
Top 96.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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 Vector Breakdown

AV:LAC:LPR:NUI:NS:UC:NI:HA:N
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-347

Affected Products

n/an/a
stsafe-j firmwarest
Embedded
Operating Systems / rtos-embedded-os
j-safe3 firmwarest
Embedded
Operating Systems / rtos-embedded-os
stcommercialCHOperating Systemsaka stm, stmicroelectronics, stmicroelectronics

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://community.st.com/s/toparticles
community.st.com
https://www.cert.ssi.gouv.fr/avis/CERTFR-2022-AVI-169/
cert.ssi.gouv.fr

Timeline

Published
Mar 4, 2022
Last Updated
Nov 21, 2024

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