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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2019-15804 Detail

Description

An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. By sending a signal to the CLI process, undocumented functionality is triggered. Specifically, a menu can be triggered by sending the SIGQUIT signal to the CLI application (e.g., through CTRL+\ via SSH). The access control check for this menu does work and prohibits accessing the menu, which contains "Password recovery for specific user" options. The menu is believed to be accessible using a serial console.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://jasper.la/exploring-zyxel-gs1900-firmware-with-ghidra.html Exploit  Third Party Advisory 
https://jasper.la/exploring-zyxel-gs1900-firmware-with-ghidra.html Exploit  Third Party Advisory 
https://www.zyxel.com/support/gs1900-switch-vulnerabilities.shtml Vendor Advisory 
https://www.zyxel.com/support/gs1900-switch-vulnerabilities.shtml Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-noinfo Insufficient Information cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-15804
NVD Published Date:
11/14/2019
NVD Last Modified:
11/20/2024
Source:
MITRE