Auth bypass in Librewireless Ls9
CVE-2020-35758
An issue was discovered on Libre Wireless LS9 LS1.5/p7040 devices. There is a Authentication Bypass in the Web Interface. This interface does not properly restrict access to internal functionality. Despite presenting a password login page on first access, authentication is not required to access privileged functionality. As such, it's possible to directly access APIs that should not be exposed to an unauthenticated user.
Vulnerability class: Broken Authentication
EPSS: 0.016 (72.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Librewireless Ls9
- Librewireless Ls9_firmware — versions 7040
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-35758?
- CVE-2020-35758 is a critical-severity vulnerability in Librewireless Ls9, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2021-05-03.
- How severe is CVE-2020-35758?
- Critical severity. CVSS v3 base score is 9.8 out of 10.