| タイトル | GL.iNet GL-MT3000 4.4.5 Command Injection |
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| 説明 | An unauthenticated command injection vulnerability exists in the `/cgi-bin/glc` endpoint of the affected product. The `nas-web.so` plugin forwards the `set_user_pwd` JSON request via libcurl HTTP POST to the local `gl_nas_sys` root daemon. The `gl_nas_sys` SET_USER_PWD handler (route 0x65, `FUN_0043db80`) extracts the `password` parameter and passes it through `FUN_0042e200` → `FUN_0042e0b0` → `FUN_0042d340`, which constructs a shell command via `snprintf(cmd, 0x100, "printf \"%s\\n%s\\n\" | smbpasswd -a -s %s", password, password, name)` followed by `system(cmd)`. Because the `password` value is placed inside double quotes, shell command substitution (`$()` and backticks) is still expanded by `/bin/sh -c`, allowing an attacker to execute arbitrary commands as root without requiring any quote-escaping. |
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| ソース | ⚠️ https://github.com/StrTzz123/iot_vul/blob/main/GL-iNet/MT3000/4.4.5/nas_set_user_pwd_glc_rce/Readme.md |
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| ユーザー | strforexc (UID 94617) |
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| 送信 | 2026年05月12日 05:06 (1 月 ago) |
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| モデレーション | 2026年06月06日 12:33 (25 days later) |
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| ステータス | 承諾済み |
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| VulDBエントリ | 369072 [GL.iNet GL-MT3000 迄 4.4.5 SET_USER_PWD /cgi-bin/glc FUN_0042e200 パスワード 特権昇格] |
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| ポイント | 20 |
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