| Titolo | TRENDnet TEW-635BRM V1.00.03 Command Injection |
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| Descrizione | The /sbin/rc binary of the TRENDnet TEW-635BRM router contains a command injection vulnerability in the ipoa_test function. This function is called during IPoA (IP over ATM) WAN connection setup. It retrieves the NVRAM variable ipoa_ipaddr via nvram_scm_safe_get() and splices it into a shell command string through sprintf() without any sanitization, then passes the result directly to system() for execution. Because ipoa_ipaddr is fully attacker-controlled, an adversary can embed shell metacharacters (e.g., ;, `) into the configuration file to execute arbitrary commands as root and achieve complete device takeover. |
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| Fonte | ⚠️ https://github.com/glkfc/IoT-Vulnerability/blob/main/TRENDnet/TRENDnet_TEW635BRM_ipoa_cmdinj_EN.md |
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| Utente | jfkk (UID 79868) |
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| Sottomissione | 27/05/2026 05:35 (2 mesi fa) |
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| Moderazione | 11/07/2026 12:02 (2 months later) |
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| Stato | Accettato |
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| Voce VulDB | 377788 [Trendnet TEW-635BRM fino a 1.00.03 IPoA WAN Connection Setup /sbin/rc ipoa_test ipoa_ipaddr escalationi di privilegi] |
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| Punti | 20 |
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