An issue was discovered on Zyxel GS1900 devices with...
Moderate severity
Unreviewed
Published
May 24, 2022
to the GitHub Advisory Database
•
Updated Jan 28, 2023
Description
Published by the National Vulnerability Database
Nov 14, 2019
Published to the GitHub Advisory Database
May 24, 2022
Last updated
Jan 28, 2023
An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. The firmware image contains encrypted passwords that are used to authenticate users wishing to access a diagnostics or password-recovery menu. Using the hardcoded cryptographic key found elsewhere in the firmware, these passwords can be decrypted. This is related to fds_sys_passDebugPasswd_ret() and fds_sys_passRecoveryPasswd_ret() in libfds.so.0.0.
References