{"id":"CVE-2021-42023","state":"PUBLISHED","title":"A vulnerability has been identified in ModelSim Simulation (All versions), Questa Simulation (All versions). The RSA white-box implementation in affected applications insufficientl","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.","publishedAt":"2021-12-14T00:00:00.000Z","updatedAt":"2024-08-04T03:22:25.772Z","severity":null,"assigner":"siemens","products":["Siemens ModelSim Simulation","Siemens Questa Simulation"],"affected":[{"vendor":"Siemens","product":"ModelSim Simulation","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":"Questa Simulation","versions":[{"version":"All versions","status":"affected"}]}],"references":["https://cert-portal.siemens.com/productcert/pdf/ssa-400332.pdf"],"weaknesses":["CWE-522"],"ingestedAt":"2026-10-29T19:49:04.473Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/42xxx/CVE-2021-42023.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-42023","state":"PUBLISHED","datePublished":"2021-12-14T00:00:00.000Z","dateUpdated":"2024-08-04T03:22:25.772Z","assignerShortName":"siemens","assignerOrgId":"cec7a2ec-15b4-4faf-bd53-b40f371f3a77","dateReserved":"2021-10-06T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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":[{"vendor":"Siemens","product":"ModelSim Simulation","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":"Questa Simulation","versions":[{"version":"All versions","status":"affected"}]}],"references":[{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-400332.pdf"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-522","type":"CWE","lang":"en","description":"CWE-522: Insufficiently Protected Credentials"}]}],"providerMetadata":{"shortName":"siemens","orgId":"cec7a2ec-15b4-4faf-bd53-b40f371f3a77","dateUpdated":"2022-11-08T00:00:00.000Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-400332.pdf","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T03:22:25.772Z"}}]}}}