CVE-2017-18371

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 v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

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

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://www.zyxel.com/support/announcement_unauthenticated.shtml	Broken Link
https://raw.githubusercontent.com/pedrib/PoC/master/advisories/zyxel_trueonline.txt	Exploit Third Party Advisory
https://seclists.org/fulldisclosure/2017/Jan/40	Mailing List Exploit Third Party Advisory
https://ssd-disclosure.com/index.php/archives/2910	Exploit Technical Description Third Party Advisory
https://unit42.paloaltonetworks.com/new-mirai-variant-targets-enterprise-wireless-presentation-display-systems/	Technical Description Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:billion:5200w-t_firmware:7.3.8.0:*:*:*:*:*:*:*

cpe:2.3:h:billion:5200w-t:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:zyxel:p660hn-t1a_v2_firmware:7.3.37.6:*:*:*:*:*:*:*

cpe:2.3:h:zyxel:p660hn-t1a_v2:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:o:zyxel:p660hn-t1a_v1_firmware:7.3.37.6:*:*:*:*:*:*:*

cpe:2.3:h:zyxel:p660hn-t1a_v1:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2019-05-02 17:29

Updated : 2019-05-03 19:20

NVD link : CVE-2017-18371

Mitre link : CVE-2017-18371

CVE.ORG link : CVE-2017-18371

JSON object : View

Products Affected

zyxel

p660hn-t1a_v1_firmware
p660hn-t1a_v2
p660hn-t1a_v2_firmware
p660hn-t1a_v1

billion

5200w-t
5200w-t_firmware

CWE

CWE-798

Use of Hard-coded Credentials

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