CVE-2021-42023

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability has been identified in ModelSim Simulation (All versions), Questa Simulation (All versions). The RSA white-box implementation in affected applications insufficiently protects the built-in private keys that are required to decrypt electronic intellectual property (IP) data in accordance with the IEEE 1735 recommended practice. This could allow a sophisticated attacker to discover the keys, bypassing the protection intended by the IEEE 1735 recommended practice.

Se ha identificado una vulnerabilidad en ModelSim Simulation (Todas las versiones), Questa Simulation (Todas las versiones). La implementación de caja blanca RSA en las aplicaciones afectadas no protege suficientemente las claves privadas incorporadas que son requeridas para descifrar datos electrónicos de propiedad intelectual (IP) de acuerdo con la práctica recomendada por el IEEE 1735. Esto podría permitir a un atacante sofisticado detectar las claves, omitiendo la protección prevista por la práctica recomendada IEEE 1735

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-10-06 CVE Reserved
2021-12-14 CVE Published
2023-07-07 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-522: Insufficiently Protected Credentials

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://cert-portal.siemens.com/productcert/pdf/ssa-400332.pdf	2021-12-20

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Siemens Search vendor "Siemens"		Modelsim Search vendor "Siemens" for product "Modelsim"				*		-		Affected
Siemens Search vendor "Siemens"		Questa Search vendor "Siemens" for product "Questa"				*		-		Affected