National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-18374 Detail

Current Description

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.

Source:  MITRE
Description Last Modified:  05/02/2019
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 8.8 HIGH
Vector: AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 2.8


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 9.0 HIGH
Vector: (AV:N/AC:L/Au:S/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 8.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): Single
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink 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 Exploit Mailing List 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

Technical Details

Vulnerability Type (View All)

  • Use of Hard-coded Credentials (CWE-798)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:billion:5200w-t_firmware:7.3.8.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:h:billion:5200w-t:-:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:o:zyxel:p660hn-t1a_v2_firmware:7.3.15.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:p660hn-t1a_v2:-:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:2.3:o:zyxel:p660hn-t1a_v1_firmware:7.3.15.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:p660hn-t1a_v1:-:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-18374
NVD Published Date:
05/02/2019
NVD Last Modified:
05/03/2019