Vulnerability Details : CVE-2021-42023
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.
Exploit prediction scoring system (EPSS) score for CVE-2021-42023
Probability of exploitation activity in the next 30 days: 0.06%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 22 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-42023
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:P/I:N/A:N |
3.9
|
2.9
|
NIST |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2021-42023
-
The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.Assigned by: productcert@siemens.com (Primary)
References for CVE-2021-42023
-
https://cert-portal.siemens.com/productcert/pdf/ssa-400332.pdf
Patch;Vendor Advisory
Products affected by CVE-2021-42023
- cpe:2.3:a:siemens:modelsim:*:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:questa:*:*:*:*:*:*:*:*