CVE-2019-15801
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
Se descubrió un problema en los dispositivos Zyxel GS1900 con firmware anterior a la versión 2.50 (AAHH.0) C0. La imagen del firmware contiene contraseñas cifradas que se utilizan para autenticar a los usuarios que desean acceder a un menú de diagnóstico o recuperación de contraseña. Usando la clave criptográfica codificada que se encuentra en otra parte del firmware, estas contraseñas se pueden descifrar. Esto está relacionado con fds_sys_passDebugPasswd_ret () y fds_sys_passRecoveryPasswd_ret () en libfds.so.0.0.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2019-08-29 CVE Reserved
- 2019-11-14 CVE Published
- 2023-10-21 EPSS Updated
- 2024-08-05 CVE Updated
- 2024-08-05 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-798: Use of Hard-coded Credentials
CAPEC
References (2)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|---|---|
| https://jasper.la/exploring-zyxel-gs1900-firmware-with-ghidra.html | 2024-08-05 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.zyxel.com/support/gs1900-switch-vulnerabilities.shtml | 2021-07-21 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Zyxel Search vendor "Zyxel" | Gs1900-8 Firmware Search vendor "Zyxel" for product "Gs1900-8 Firmware" | < 2.50\(aahh.0\)c0 Search vendor "Zyxel" for product "Gs1900-8 Firmware" and version " < 2.50\(aahh.0\)c0" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Gs1900-8 Search vendor "Zyxel" for product "Gs1900-8" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Gs1900-8hp Firmware Search vendor "Zyxel" for product "Gs1900-8hp Firmware" | < 2.50\(aahi.0\)c0 Search vendor "Zyxel" for product "Gs1900-8hp Firmware" and version " < 2.50\(aahi.0\)c0" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Gs1900-8hp Search vendor "Zyxel" for product "Gs1900-8hp" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Gs1900-10hp Firmware Search vendor "Zyxel" for product "Gs1900-10hp Firmware" | < 2.50\(aazi.0\)c0 Search vendor "Zyxel" for product "Gs1900-10hp Firmware" and version " < 2.50\(aazi.0\)c0" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Gs1900-10hp Search vendor "Zyxel" for product "Gs1900-10hp" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Gs1900-16 Firmware Search vendor "Zyxel" for product "Gs1900-16 Firmware" | < 2.50\(aahj.0\)c0 Search vendor "Zyxel" for product "Gs1900-16 Firmware" and version " < 2.50\(aahj.0\)c0" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Gs1900-16 Search vendor "Zyxel" for product "Gs1900-16" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Gs1900-24e Firmware Search vendor "Zyxel" for product "Gs1900-24e Firmware" | < 2.50\(aahk.0\)c0 Search vendor "Zyxel" for product "Gs1900-24e Firmware" and version " < 2.50\(aahk.0\)c0" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Gs1900-24e Search vendor "Zyxel" for product "Gs1900-24e" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Gs1900-24 Firmware Search vendor "Zyxel" for product "Gs1900-24 Firmware" | < 2.50\(aahl.0\)c0 Search vendor "Zyxel" for product "Gs1900-24 Firmware" and version " < 2.50\(aahl.0\)c0" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Gs1900-24 Search vendor "Zyxel" for product "Gs1900-24" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Gs1900-24hp Firmware Search vendor "Zyxel" for product "Gs1900-24hp Firmware" | < 2.50\(aahm.0\)c0 Search vendor "Zyxel" for product "Gs1900-24hp Firmware" and version " < 2.50\(aahm.0\)c0" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Gs1900-24hp Search vendor "Zyxel" for product "Gs1900-24hp" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Gs1900-48 Firmware Search vendor "Zyxel" for product "Gs1900-48 Firmware" | < 2.50\(aahn.0\)c0 Search vendor "Zyxel" for product "Gs1900-48 Firmware" and version " < 2.50\(aahn.0\)c0" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Gs1900-48 Search vendor "Zyxel" for product "Gs1900-48" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Gs1900-48hp Firmware Search vendor "Zyxel" for product "Gs1900-48hp Firmware" | < 2.50\(aaho.0\)c0 Search vendor "Zyxel" for product "Gs1900-48hp Firmware" and version " < 2.50\(aaho.0\)c0" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Gs1900-48hp Search vendor "Zyxel" for product "Gs1900-48hp" | - | - |
Safe
|