CVE-2021-25309
Published: 02 March 2021
Summary
CVE-2021-25309 is a critical-severity Improper Restriction of Excessive Authentication Attempts (CWE-307) vulnerability in Gigaset Dx600A Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 40.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-12209
Vulnerability details
The telnet administrator service running on port 650 on Gigaset DX600A v41.00-175 devices does not implement any lockout or throttling functionality. This situation (together with the weak password policy that forces a 4-digit password) allows remote attackers to easily obtain…
more
administrative access via brute-force attacks.
- 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.
This control directly enforces limits on consecutive invalid logon attempts and automatic response (e.g., lockout) to prevent brute-force exploitation of authentication mechanisms.
Configuration settings can define and enforce strong password requirements to avoid weak policies.
IA policy establishes password requirements, directly addressing weak password requirements.
Specific conditions can include excessive failed attempts, triggering stronger authentication that restricts brute-force exploitation.
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.