Vulnerability 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 Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Billion | 5200W-T Firmware | 7.3.8.0 |
| Billion | 5200W-T | - |
| Zyxel | P660Hn-T1A V2 Firmware | 7.3.37.6 |
| Zyxel | P660Hn-T1A V2 | - |
| Zyxel | P660Hn-T1A V1 Firmware | 7.3.37.6 |
| Zyxel | P660Hn-T1A V1 | - |
Related Weaknesses (CWE)
References
- http://www.zyxel.com/support/announcement_unauthenticated.shtmlBroken Link
- https://raw.githubusercontent.com/pedrib/PoC/master/advisories/zyxel_trueonline.ExploitThird Party Advisory
- https://seclists.org/fulldisclosure/2017/Jan/40ExploitMailing ListThird Party Advisory
- https://ssd-disclosure.com/index.php/archives/2910ExploitTechnical DescriptionThird Party Advisory
- https://unit42.paloaltonetworks.com/new-mirai-variant-targets-enterprise-wirelesTechnical DescriptionThird Party Advisory
- http://www.zyxel.com/support/announcement_unauthenticated.shtmlBroken Link
- https://raw.githubusercontent.com/pedrib/PoC/master/advisories/zyxel_trueonline.ExploitThird Party Advisory
- https://seclists.org/fulldisclosure/2017/Jan/40ExploitMailing ListThird Party Advisory
- https://ssd-disclosure.com/index.php/archives/2910ExploitTechnical DescriptionThird Party Advisory
- https://unit42.paloaltonetworks.com/new-mirai-variant-targets-enterprise-wirelesTechnical DescriptionThird Party Advisory
FAQ
What is CVE-2017-18371?
CVE-2017-18371 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 p...
How severe is CVE-2017-18371?
CVE-2017-18371 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2017-18371?
Check the references section above for vendor advisories and patch information. Affected products include: Billion 5200W-T Firmware, Billion 5200W-T, Zyxel P660Hn-T1A V2 Firmware, Zyxel P660Hn-T1A V2, Zyxel P660Hn-T1A V1 Firmware.