| 제목 | WAYOS FBM220G and others 24.10.19 Command Injection |
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| 설명 | A command injection vulnerability exists in WAYOS FBM220G and other related models running firmware version FBM_220G-24.10.19V-vue-aiv3.trx. The vulnerability is located in the `sub_40F820` function within the `rc` binary. When processing configuration items such as `upnp_waniface`, `upnp_ssdp_interval`, and `upnp_max_age`, the program retrieves their values using `nvram_get` without proper sanitization. These values are then concatenated into a shell command string via `snprintf` and executed through `jhl_system`. An attacker who can tamper with the relevant configuration parameters may inject arbitrary commands, potentially leading to remote code execution and full device compromise.
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| 원천 | ⚠️ https://github.com/glkfc/IoT-Vulnerability/blob/main/wayos/wayos.md |
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| 사용자 | jfkk (UID 79868) |
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| 제출 | 2026. 01. 31. PM 03:36 (9 개월 ago) |
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| 모더레이션 | 2026. 02. 15. PM 05:04 (15 days later) |
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| 상태 | 수락 |
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| VulDB 항목 | 346157 [WAYOS FBM-220G 24.10.19 rc sub_40F820 upnp_waniface/upnp_ssdp_interval/upnp_max_age 권한 상승] |
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| 포인트들 | 20 |
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