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Unscored Public exploit CVE-2021-42023 EUVD-2021-29011GHSA-x8jw-8x39-62fp

A vulnerability has been identified in ModelSim Simulation (All versions), Questa Simulation (All versions). The RSA white-box implementati…

Published Dec 14, 2021 · Updated Aug 4, 2024 · Assigned by siemens

Vendor: Siemens Product: ModelSim Simulation Product: Questa Simulation Category: ICS / OT

Description

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.

Affected products

VendorProductAffectedFixed
Siemens ModelSim Simulation All versions —
Siemens Questa Simulation All versions —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Advisories 2

References