| タイトル | D-Link Router D-Link DWR-M921 V1.1.52 Command Injection |
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| 説明 | A vulnerability has been found in D-Link DWR-M921 firmware V1.1.52. It can be triggered through the route /boafrm/formLtefotaUpgradeQuectel. The manipulation of the argument fota_url leads to OS command injection. The attack is possible remotely after authentication (default admin/admin).
The vulnerable handler is sub_41A294 at address 0x41A294 in /bin/boa.
Vulnerable parameter: fota_url, retrieved via sub_415F84 with no sanitization.
Authentication: Required (webuicookie session).
Prefix check: Only verifies that the value starts with http://, https:// or ftp://; shell metacharacters (;, |, &) are not filtered.
Command template: sprintf(v6, "/var/upgrade_quectel %s&", fota_url); system(v6);
Injection method: Semicolon injection — http://x;CMD.
Branch condition: fota_url is non-empty and contains a protocol prefix. |
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| ソース | ⚠️ https://gist.github.com/H3rmesk1t/6d63f4f182e5c0c3b007671165a54201 |
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| ユーザー | H3rmesk1t (UID 70306) |
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| 送信 | 2026年08月06日 20:22 (1 月 ago) |
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| モデレーション | 2026年09月13日 09:57 (1 month later) |
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| ステータス | 重複 |
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| VulDBエントリ | 344870 [D-Link DWR-M921 1.1.50 formLtefotaUpgradeQuectel sub_419920 fota_url 特権昇格] |
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| ポイント | 0 |
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