CVE-2017-18371 Information

Description

The ZyXEL P660HN-T1A v2 TCLinux Fw 7.3.37.6 router distributed by TrueOnline has three user accounts with default passwords including two hardcoded service accounts: one with the username true and password true and another with the username supervisor and password zyad1234. These accounts can be used to login to the web interface exploit authenticated command injections and change router settings for malicious purposes.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.zyxel.com/support/announcement_unauthenticated.shtml https://raw.githubusercontent.com/pedrib/PoC/master/advisories/zyxel_trueonline.txt https://seclists.org/fulldisclosure/2017/Jan/40 https://ssd-disclosure.com/index.php/archives/2910 https://unit42.paloaltonetworks.com/new-mirai-variant-targets-enterprise-wireless-presentation-display-systems/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8