CyberRota Analysis
This is a high severity vulnerability with a CVSS score of 7.5. See the original NVD description below for full technical details.
CVE
CVE-2019-15804
Severity
HIGH
CVSS
7.5
EPSS
0.93%
Original NVD 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.
Related CVEs
Other vulnerabilities affecting the same vendor(s)