CVE-2021-41290
Published: 30 September 2021
Summary
CVE-2021-41290 is a critical-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Ecoa Ecs Router Controller-Ecs Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 16.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-28320
Vulnerability details
ECOA BAS controller suffers from an arbitrary file write and path traversal vulnerability. Using the POST parameters, unauthenticated attackers can remotely set arbitrary values for location and content type and gain the possibility to execute arbitrary code on the affected…
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device.
- 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.
Requiring identifiable owners for portable devices reduces the attack surface for unrestricted uploads of dangerous file types via anonymous media.
Dangerous file uploads can be detonated in the chamber to determine malice before any production write or execution occurs.
Prevents unrestricted writing of arbitrary or malicious firmware by keeping hardware write-protect enabled except under tightly controlled manual procedures.
Validates pathnames and filenames to prevent traversal outside intended directories.
Scans files from external sources on download/open/execute, blocking unrestricted uploads of dangerous file types.