CVE-2017-1000020

Critical

Published: 17/07/2017(UTC)Translated: 14/06/2026(UTC)NVD NIST

Summary

SYN Flood or FIN Flood attack in eCos 1 and other versions of embedded devices results in web Authentication Bypass. eCos Embedded Web Servers fail to validate and handle SYN and FIN packets, resulting in no authentication requirement.

Risk Assessment

An attacker can take complete advantage of this bug and take over the device remotely or locally, posing a serious threat to network and user data security.

Recommendation

It is recommended to update the device firmware to the latest version and implement additional security mechanisms against SYN and FIN Flood attacks.

Original NVD description (English source)

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."