CVE-2017-1000020

CRITICAL

eCos Embedded Web Servers < 1.3.1 - Unauthenticated Authentication Bypass via SYN/FIN Flood

Title source: llm
STIX 2.1

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."

References (1)

Core 1
Core References
Vendor Advisory x_refsource_misc
http://ecos.sourceware.org/ecos/problemreport.html

Scores

CVSS v3 9.8
EPSS 0.0292
EPSS Percentile 85.3%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-287
Status published
Products (1)
ecos/embedded_web_servers < 1.3.1
Published Jul 17, 2017
Tracked Since Feb 18, 2026