CVE-2019-15804 - CVE House
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Status published High CVE-2019-15804

An issue was discovered on Zyxel GS1900 devices with firmware...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

gs1900-8 firmware, gs1900-8hp firmware, gs1900-10hp firmware, gs1900-16 firmware, gs1900-24e firmware, gs1900-24 firmware, gs1900-24hp firmware, gs1900-48 firmware, gs1900-48hp firmware
Vulnerable Versions:
0

Timeline

Official Publish: November 14th, 2019
Last Modified: August 5th, 2024
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.