CVE-2017-1000020

9.8 CRITICAL
Published: July 17, 2017 Modified: May 13, 2026
View on NVD

Description

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."

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://ecos.sourceware.org/ecos/problemreport.html
Source: cve@mitre.org
Vendor Advisory
http://ecos.sourceware.org/ecos/problemreport.html
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory

2 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
2.9%
85th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

greatek totolink ecos