Cyber Resilience

CVE-2021-28937

HighPublic PoC

Published: 29 March 2021

Published
29 March 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.3383 97.1th percentile
Risk Priority 35 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-28937 is a high-severity Cleartext Storage of Sensitive Information (CWE-312) vulnerability in Acexy Wireless-N Wifi Repeater Firmware. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 2.9% 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

Vulnerability details

The /password.html page of the Web management interface of the Acexy Wireless-N WiFi Repeater REV 1.0 (28.08.06.1) contains the administrator account password in plaintext. The page can be intercepted on HTTP.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

acexy
wireless-n wifi repeater firmware
28.08.06.1

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.

addresses: CWE-312

Training on secure data handling discourages cleartext storage of sensitive information.

addresses: CWE-312

Data action mapping can detect storage actions that leave sensitive information in cleartext.

addresses: CWE-312

Configuration policies can mandate secure storage methods to avoid cleartext storage of sensitive information.

addresses: CWE-312

Policy requires protection measures such as encryption for sensitive data stored on media, preventing cleartext exposure.

addresses: CWE-312

Key-management policy requires protected storage of key material, preventing cleartext storage of sensitive cryptographic keys.

addresses: CWE-312

Requiring confidentiality protection for information at rest eliminates cleartext storage of sensitive data on persistent media.

addresses: CWE-312

Reduces cleartext storage of sensitive data when OPSEC identifies and mandates protection of key information artifacts.

References