| タイトル | Trendnet TEW-821DAP v1.12B01 CWE-120 Buffer Copy without Checking Size of Input |
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| 説明 | During the firmware udpate process, there is buffer overflow vulnerability in the function auto_update_firmware() of program ssi. The variable str is a external data which stores the file name of the new firmware. It is copied to array s in strcpy without any size constraint such as strlen. The total size of array s is 1552 bytes and the offset of strcpy is 388 bytes. Since there is no size constraint on variable str, once the size of str is larger than 1163 bytes, a buffer overflow vulnerability occurs. The hackers could control the str and perform out-of-bounds writing to cause buffer overflow vulnerability which could further cause the denial of service. |
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| ソース | ⚠️ https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Trendnet/TEW-821DAP_BO.md |
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| ユーザー | IOT_Res (UID 81722) |
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| 送信 | 2026年04月16日 04:31 (2 月 ago) |
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| モデレーション | 2026年05月01日 14:07 (15 days later) |
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| ステータス | 承諾済み |
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| VulDBエントリ | 360564 [TRENDnet TEW-821DAP 1.12B01 Firmware Udpate auto_update_firmware str メモリ破損] |
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| ポイント | 20 |
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