CVE-2021-27389
Published: 22 April 2021
Summary
CVE-2021-27389 is a critical-severity Use of Hard-coded Cryptographic Key (CWE-321) vulnerability in Siemens Opcenter Quality. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 38.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-14144
Vulnerability details
A vulnerability has been identified in Opcenter Quality (All versions < V12.2), QMS Automotive (All versions < V12.30). A private sign key is shipped with the product without adequate protection.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Supply chain protection includes scrutiny of cryptographic implementations, reducing hard-coded keys planted by untrusted vendors.
Functional and assurance requirements specified in acquisition can prohibit hard-coded cryptographic keys in delivered products.
Proper key establishment and management processes directly preclude embedding static cryptographic keys in source code or binaries.
Approved PKI issuance and trust stores replace ad-hoc or hard-coded keys with properly managed, signed certificates.
Assessments can uncover and prevent suppliers from shipping components that contain hard-coded cryptographic keys.