| tiêu đề | WAVLINK NU516U1 2026-05-15 (build 708c073-mt7628) Command Injection |
|---|
| Mô tả | WAVLINK NU516U1 has an OS command injection vulnerability in the `adm.cgi` init handler. The `set_sys_adm` page handler stores the admin password to UCI config without sanitization. At boot time, the init handler reads the password back and interpolates it into a double-quoted shell command via `sprintf()` → `system()`. An authenticated attacker can set the password to `$(cmd)` which is evaluated by the shell when `system()` executes the resulting string at next boot, achieving persistent code execution as root.
Unlike typical command injection where the payload executes immediately, this is a stored injection: the payload persists in flash config and triggers on every boot cycle. |
|---|
| Nguồn | ⚠️ https://github.com/oduoke567/WAVLINK-NU516U1-2026-05-1/blob/main/report3.md |
|---|
| Người dùng | oduoke (UID 98772) |
|---|
| Đệ trình | 06/06/2026 12:32 (cách đây 5 các tháng) |
|---|
| Kiểm duyệt | 02/08/2026 22:34 (2 months later) |
|---|
| Trạng thái | Bản sao |
|---|
| Mục VulDB | 385418 [Wavlink WL-NU516U1 708c073-mt7628 Admin Password adm.cgi set_sys_adm nâng cao đặc quyền] |
|---|
| điểm | 0 |
|---|