監視カメラ1-2 - hyosida @ ウィキ

最初に解析した監視カメラの続き

nmapもう少し詳しく

$ nmap -AT4 192.168.11.5
Starting Nmap 7.70 ( https://nmap.org ) at 2021-05-04 14:55 JST
Nmap scan report for 192.168.11.5
Host is up (0.027s latency).
Not shown: 997 closed ports
PORT     STATE SERVICE        VERSION
21/tcp   open  ftp            BusyBox ftpd (D-Link DCS-932L IP-Cam camera)
| ftp-anon: Anonymous FTP login allowed (FTP code 230)
| total 32
| drwxrwxrwx    2 root     root          1029 Dec 17  2019 bin [NSE: writeable]
| drwxr-xr-x    4 root     root             0 Jan  1  1970 dev
| drwxrwxrwx    5 root     root           300 Dec 17  2019 etc [NSE: writeable]
| lrwxrwxrwx    1 root     root            11 Nov  4  2015 init -> bin/busybox
| drwxrwxrwx    3 root     root           998 Dec 17  2019 lib [NSE: writeable]
| drwxrwxrwx    5 root     root         32768 Jan  1  2010 mnt [NSE: writeable]
| dr-xr-xr-x   57 root     root             0 Jan  1  1970 proc
| drwxrwxrwx    2 root     root           752 Dec 17  2019 sbin [NSE: writeable]
| dr-xr-xr-x   13 root     root             0 Jan  1  1970 sys
| drwxr-xr-x    4 root     root             0 May  4 14:58 tmp
| drwxrwxrwx    8 root     root           102 Dec 17  2019 usr [NSE: writeable]
|_drwxr-xr-x    6 root     root             0 Jan  1  1970 var
|_ftp-bounce: bounce working!
|  ftp-syst: 
|   STAT: 
| Server status:
|  TYPE: BINARY
|_Ok
23/tcp   open  telnet         BusyBox telnetd
6789/tcp open  ibm-db2-admin?
Service Info: Host: anyka; Device: webcam; CPE: cpe:/h:dlink:dcs-932l

Service detection performed. Please report any incorrect results at  https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 157.84 seconds

ftpの応答を見ると、BusyBox ftpd (D-Link DCS-932L IP-Cam camera)とある。telnetはBusyBoxとある。BusyBoxとは何か。

BusyBox（ビジーボックス）は、Coreutilsなど標準UNIXコマンドで重要な多数のプログラムを単一の実行ファイルに「詰め込んで」提供する、特殊な方式のプログラムである（その詰め込み方法を指して呼ぶこともある）。

ははん。