| Titel | GL.iNet MT3000 4.4.5 Command Injection |
|---|
| Beschreibung | An unauthenticated command injection vulnerability exists in the /cgi-bin/glc endpoint. The modem.so shared object exports a set_upgrade function that extracts the firmware_upload parameter from the JSON request body and passes it into sprintf(cmd, "/usr/bin/modem_upgrade_check %s %s %s %s %s %s", firmware_upload, modem_url, target_version, hash_type, current_version, hash_value) followed by fork_exec(cmd) (which invokes /bin/sh -c). The modem-existence gate (find_modem_by_bus) checks a different JSON field (modem_url) and does not validate firmware_upload. On devices with a real modem, an attacker can inject &(cmd);# to execute arbitrary commands as root without authentication. |
|---|
| Quelle | ⚠️ https://github.com/StrTzz123/iot_vul/tree/main/GL-iNet/MT3000/4.4.5/modem_set_upgrade_glc_rce |
|---|
| Benutzer | Strforexc2 (UID 98838) |
|---|
| Einreichung | 08.06.2026 15:23 (vor 2 Monaten) |
|---|
| Moderieren | 03.08.2026 17:50 (2 months later) |
|---|
| Status | Akzeptiert |
|---|
| VulDB Eintrag | 385611 [GL.iNet GL-MT3000 bis 4.4.5 modem.so /cgi-bin/glc set_upgrade erweiterte Rechte] |
|---|
| Punkte | 20 |
|---|