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.
History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: mitre

Published: 2019-11-14T20:15:46

Updated: 2019-11-14T20:15:46

Reserved: 2019-08-29T00:00:00


Link: CVE-2019-15804

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2019-11-14T21:15:11.953

Modified: 2020-08-24T17:37:01.140


Link: CVE-2019-15804

JSON object: View

cve-icon Redhat Information

No data.