Insufficiently protected credentials in Siemens Questa and ModelSim



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-42023
CWE-ID CWE-522
Exploitation vector Local
Public exploit N/A
Vulnerable software
ModelSim Simulation
Server applications / Other server solutions

Questa Simulation
Server applications / Other server solutions

Vendor Siemens

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Insufficiently protected credentials

EUVDB-ID: #VU59231

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 - Insufficiently Protected Credentials

Exploit availability: No

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

CPE2.3 External links

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


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.



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