CVE-2020-25754
Published: 16 June 2021
Summary
CVE-2020-25754 is a high-severity Use of Password Hash With Insufficient Computational Effort (CWE-916) vulnerability in Enphase Envoy Firmware. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 41.9% 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-2020-18405
Vulnerability details
An issue was discovered on Enphase Envoy R3.x and D4.x devices. There is a custom PAM module for user authentication that circumvents traditional user authentication. This module uses a password derived from the MD5 hash of the username and serial…
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number. The serial number can be retrieved by an unauthenticated user at /info.xml. Attempts to change the user password via passwd or other tools have no effect.
- 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.
Information from security contacts highlights password hashing methods with insufficient computational effort, preventing their adoption.