| タイトル | D-Link DIR822A_101 A_101 Buffer Overflow |
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| 説明 | An unauthenticated command injection vulnerability exists in the `udhcpd` DHCP service used by D-Link DIR-822 A1 firmware. While processing a `DHCPREQUEST` packet, the server reads the client-supplied hostname from DHCP Option 12 and concatenates it into a shell command that is executed via `system()` without sanitization.
As a result, an attacker on the local network can send a crafted DHCP packet containing shell metacharacters in the hostname field and trigger arbitrary command execution on the router. |
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| ソース | ⚠️ https://tzh00203.notion.site/D-Link-DIR-822-A1-Command-Injection-in-udhcpd-via-DHCP-Hostname-337b5c52018a80d9b638d0fa59969e6b |
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| ユーザー | tian (UID 93438) |
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| 送信 | 2026年04月07日 13:03 (20 日 ago) |
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| モデレーション | 2026年04月26日 09:27 (19 days later) |
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| ステータス | 承諾済み |
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| VulDBエントリ | 359642 [D-Link DIR-822 A_101 udhcpd DHCP Service /udhcpcd/dhcpd.c system ホスト名 特権昇格] |
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| ポイント | 17 |
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