Auth bypass in Ecos Embedded Web Servers
CVE-2017-1000020
SYN Flood or FIN Flood attack in ECos 1 and other versions embedded devices results in web Authentication Bypass. "eCos Embedded Web Servers used by Multiple Routers and Home devices, while sending SYN Flood or FIN Flood packets fails to validate and handle the packets and does not ask for any sign of authentication resulting in Authentication Bypass. An attacker can take complete advantage of this bug and take over the device remotely or locally. The bug has been successfully tested and reproduced in some versions of SOHO Routers manufactured by TOTOLINK, GREATEK and others."
Vulnerability class: Broken Authentication
EPSS: 0.029 (85.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Ecos Embedded_web_servers
- Greatek Soho
- Totolink Soho
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2017-1000020?
- CVE-2017-1000020 is a critical-severity vulnerability in Ecos Embedded Web Servers, classified under Improper Authentication. CVSS score: 9.8/10. Published 2017-07-17.
- How severe is CVE-2017-1000020?
- Critical severity. CVSS v3 base score is 9.8 out of 10.