#VU59231 Insufficiently protected credentials in ModelSim Simulation and Questa Simulation - CVE-2021-42023

Vulnerability identifier: #VU59231

Vulnerability risk: Low

CVSSv4.0: 6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-42023

CWE-ID: CWE-522

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
ModelSim Simulation
Server applications / Other server solutions
Questa Simulation
Server applications / Other server solutions

Vendor: Siemens

Description

The vulnerability allows a local attacker to compromise the target system.

The vulnerability exists due to insufficiently protected keys required for decrypting intellectual property data. A local attacker can discover the keys and bypass the protection.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

ModelSim Simulation: All versions

Questa Simulation: All versions

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External links
https://cert-portal.siemens.com/productcert/pdf/ssa-400332.pdf

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.