| 제목 | GL.iNet MT3000 4.4.5 Command Injection |
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| 설명 | 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. |
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| 원천 | ⚠️ https://github.com/StrTzz123/iot_vul/tree/main/GL-iNet/MT3000/4.4.5/modem_set_upgrade_glc_rce |
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| 사용자 | Strforexc2 (UID 98838) |
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| 제출 | 2026. 06. 08. PM 03:23 (2 개월 ago) |
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| 모더레이션 | 2026. 08. 03. PM 05:50 (2 months later) |
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| 상태 | 수락 |
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| VulDB 항목 | 385611 [GL.iNet GL-MT3000 까지 4.4.5 modem.so /cgi-bin/glc set_upgrade 권한 상승] |
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| 포인트들 | 20 |
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