CVE-2021-33017
Published: 27 December 2021
Summary
CVE-2021-33017 is a high-severity Authentication Bypass Using an Alternate Path or Channel (CWE-288) vulnerability in Philips Intellibridge Ec40 Firmware. Its CVSS base score is 8.1 (High).
Operationally, ranked at the 19.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-19738
Vulnerability details
The standard access path of the IntelliBridge EC 40 and 60 Hub (C.00.04 and prior) requires authentication, but the product has an alternate path or channel that does not require authentication.
- 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.
Authorizing remote access reduces the ability to bypass authentication via unauthorized alternate remote channels.
Users can identify logons via alternate paths or channels by reviewing the previous logon time.
Adaptive requirements can apply across access paths, reducing the ability to bypass authentication via alternate channels or paths.
Centralized IdPs close alternate authentication paths that enable bypass.
Enforces authentication for non-organizational users, making it harder to bypass via alternate paths or channels.
Requires authentication to occur exclusively over the isolated trusted path, directly preventing bypass via alternate or untrusted channels.