| タイトル | Tenda FH451 v1.0.0.9 Buffer Overflow |
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| 説明 | The router FH451V1.0.0.9 from Shenzhen Tenda Technology Co., Ltd. contains a binary stack overflow vulnerability located within the fromWizardHandle function. This function receives a parameter a1 via a POST request and extracts variables WANT and WANS from it. When WANS equals 1 and WANT equals 2, the execution enters a conditional branch. Within this branch, the function sub_3C434 is called, which unsafely copies the PPW value from a1 into a 256-byte buffer without performing any bounds checking. An attacker can exploit this vulnerability to cause a denial of service (DoS). Furthermore, it can be leveraged to construct a ROP (Return-Oriented Programming) chain to overwrite the return address, enabling privilege escalation or remote code execution (RCE). |
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| ソース | ⚠️ https://github.com/zezhifu1/cve_report/blob/main/FH451/fromWizardHandle.md |
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| ユーザー | zezhifu (UID 87457) |
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| 送信 | 2025年07月14日 04:31 (1 年 ago) |
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| モデレーション | 2025年07月17日 12:26 (3 days later) |
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| ステータス | 承諾済み |
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| VulDBエントリ | 316737 [Tenda FH451 1.0.0.9 POST Request /goform/WizardHandle fromWizardHandle PPW メモリ破損] |
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| ポイント | 20 |
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