Home/CVE/The ZyXEL P660HN-T1A v1 TCLinux Fw $7.3.15.0 v001 / 3.40(ULM.0)b31 router distributed by TrueOnline has two user account
CVE

CVE-2017-18374

The ZyXEL P660HN-T1A v1 TCLinux Fw $7.3.15.0 v001 / 3.40(ULM.0)b31 router distributed by TrueOnline has two user account

The ZyXEL P660HN-T1A v1 TCLinux Fw $7.3.15.0 v001 / 3.40(ULM.0)b31 router distributed by TrueOnline has two user accounts with default passwords, including a hardcoded service account with the username true and password true. These accounts can be used to login to the web interface, exploit authenticated command injections and change router settings for malicious purposes.

HIGH · CVSS 8.8 EPSS 0.05171
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  • EPSS percentile: top 10% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-798Use of Hard-coded Credentials
▤

Affected Products & Versions

3
billion 5200w-t firmwareall versions
zyxel p660hn-t1a v2 firmwareall versions
zyxel p660hn-t1a v1 firmwareall versions
⚠

Public Exploits & PoCs

2
pocraw.githubusercontent.com · zyxel_trueonline.txtraw.githubusercontent.com
pocssd-disclosure.com · 2910ssd-disclosure.com
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Scoring & Timeline

8.8
HIGH · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD02 May 2019 · 05:29 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.zyxel.com/support/announcement_unauthenticated.shtmlBroken Link
https://seclists.org/fulldisclosure/2017/Jan/40ExploitMailing ListThird Party Advisory
https://unit42.paloaltonetworks.com/new-mirai-variant-targets-enterprise-wireless-presentation-display-systems/Technical DescriptionThird Party Advisory
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