| 标题 | GL.iNet MT3000 4.4.5 Command Injection |
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| 描述 | 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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| 来源 | ⚠️ https://github.com/StrTzz123/iot_vul/tree/main/GL-iNet/MT3000/4.4.5/modem_set_upgrade_glc_rce |
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| 用户 | Strforexc2 (UID 98838) |
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| 提交 | 2026-06-08 15時23分 (2 月前) |
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| 管理 | 2026-08-03 17時50分 (2 months later) |
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| 状态 | 已接受 |
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| VulDB条目 | 385611 [GL.iNet GL-MT3000 直到 4.4.5 modem.so /cgi-bin/glc set_upgrade 权限提升] |
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| 积分 | 20 |
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