CVE-2021-40520
Published: 10 November 2021
Summary
CVE-2021-40520 is a critical-severity Weak Password Requirements (CWE-521) vulnerability in Airangel Hsmx-App-25 Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 38.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-27696
Vulnerability details
Airangel HSMX Gateway devices through 5.2.04 have Weak SSH Credentials.
- 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.
Configuration settings can define and enforce strong password requirements to avoid weak policies.
IA policy establishes password requirements, directly addressing weak password requirements.
Ensuring authenticators have sufficient strength of mechanism for intended use addresses weak password requirements.
Organization-wide password and authentication policies are applied uniformly, preventing weak local password requirements.
Facilitated training and awareness of current practices improves definition and enforcement of sufficiently strong password requirements.
Dedicated security resources support deployment of strong authentication systems and enforcement of robust password policies.
Vulnerability scans assess password policies and weak credential requirements against benchmarks.
User documentation on maintaining security includes password requirements, directly mitigating weak password policies.