| Título | Trendnet TEW-821DAP v1.12B01 CWE-120 Buffer Copy without Checking Size of Input |
|---|
| Descripción | During the firmware udpate process, there is buffer overflow vulnerability in the function auto_update_firmware() of program ssi. The variable str is a external data which stores the file name of the new firmware. It is copied to array s in strcpy without any size constraint such as strlen. The total size of array s is 1552 bytes and the offset of strcpy is 388 bytes. Since there is no size constraint on variable str, once the size of str is larger than 1163 bytes, a buffer overflow vulnerability occurs. The hackers could control the str and perform out-of-bounds writing to cause buffer overflow vulnerability which could further cause the denial of service. |
|---|
| Fuente | ⚠️ https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Trendnet/TEW-821DAP_BO.md |
|---|
| Usuario | IOT_Res (UID 81722) |
|---|
| Sumisión | 2026-04-16 04:31 (hace 2 meses) |
|---|
| Moderación | 2026-05-01 14:07 (15 days later) |
|---|
| Estado | Aceptado |
|---|
| Entrada de VulDB | 360564 [TRENDnet TEW-821DAP 1.12B01 Firmware Udpate auto_update_firmware str desbordamiento de búfer] |
|---|
| Puntos | 20 |
|---|