| ID |
CVE-2019-15803
|
| Sažetak |
An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. Through an undocumented sequence of keypresses, undocumented functionality is triggered. A diagnostics shell is triggered via CTRL-ALT-t, which prompts for the password returned by fds_sys_passDebugPasswd_ret(). The firmware contains access control checks that determine if remote users are allowed to access this functionality. The function that performs this check (fds_sys_remoteDebugEnable_ret in libfds.so) always return TRUE with no actual checks performed. The diagnostics menu allows for reading/writing arbitrary registers and various other configuration parameters which are believed to be related to the network interface chips. |
| Reference |
|
| CVSS |
| Base: | 6.4 |
| Impact: | 4.9 |
| Exploitability: | 10.0 |
|
| Pristup |
| Vektor | Složenost | Autentikacija |
| NETWORK |
LOW |
NONE |
|
| Impact |
| Povjerljivost | Cjelovitost | Dostupnost |
| PARTIAL |
PARTIAL |
NONE |
|
| CVSS vektor |
AV:N/AC:L/Au:N/C:P/I:P/A:N |
| Zadnje važnije ažuriranje |
24-08-2020 - 17:37 |
| Objavljeno |
14-11-2019 - 21:15 |
