CVE-2019-15801

A

n 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.

Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:zyxel:gs1900-8_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:gs1900-8:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND
cpe:2.3:o:zyxel:gs1900-8hp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:gs1900-8hp:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND
cpe:2.3:o:zyxel:gs1900-10hp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:gs1900-10hp:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND
cpe:2.3:o:zyxel:gs1900-16_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:gs1900-16:-:*:*:*:*:*:*:*

Configuration 5 (hide)

AND
cpe:2.3:o:zyxel:gs1900-24e_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:gs1900-24e:-:*:*:*:*:*:*:*

Configuration 6 (hide)

AND
cpe:2.3:o:zyxel:gs1900-24_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:gs1900-24:-:*:*:*:*:*:*:*

Configuration 7 (hide)

AND
cpe:2.3:o:zyxel:gs1900-24hp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:gs1900-24hp:-:*:*:*:*:*:*:*

Configuration 8 (hide)

AND
cpe:2.3:o:zyxel:gs1900-48_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:gs1900-48:-:*:*:*:*:*:*:*

Configuration 9 (hide)

AND
cpe:2.3:o:zyxel:gs1900-48hp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:gs1900-48hp:-:*:*:*:*:*:*:*

History

21 Nov 2024, 04:29

Type Values Removed Values Added
References () 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
References () https://www.zyxel.com/support/gs1900-switch-vulnerabilities.shtml - Vendor Advisory () https://www.zyxel.com/support/gs1900-switch-vulnerabilities.shtml - Vendor Advisory