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CVE-2017-1000020

Published: Jul 13, 2017Updated: May 13, 2026 Sources: CVE List NVD BDUCWE-287
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
2.9%
Top 14.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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."

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-287

Affected Products

Embedded Web ServereCos community
On-prem
Web & CMS Plugins / site-builder
n/an/a
embedded web serversecos
Embedded
Hardware Firmware / bios-uefi
ecos communityoss-projectWeb & CMS Plugins
ecoscommercialHardware Firmware

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

http://ecos.sourceware.org/ecos/problemreport.html
ecos.sourceware.org

Timeline

Published
Jul 13, 2017
Last Updated
May 13, 2026

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