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https://github.com/AbdullahRizwan101/CTF-Writeups
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111 lines
5 KiB
Markdown
111 lines
5 KiB
Markdown
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# HackTheBox-Legacy
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## NMAP
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```bash
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PORT STATE SERVICE VERSION
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139/tcp open netbios-ssn Microsoft Windows netbios-ssn
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445/tcp open microsoft-ds Windows XP microsoft-ds
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3389/tcp closed ms-wbt-server
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Service Info: OSs: Windows, Windows XP; CPE: cpe:/o:microsoft:windows, cpe:/o:microsoft:windows_xp
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Host script results:
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|_clock-skew: mean: 5d00h31m36s, deviation: 2h07m16s, median: 4d23h01m36s
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| nbstat: NetBIOS name: LEGACY, NetBIOS user: <unknown>, NetBIOS MAC: 00:50:56:b9:cc:42 (VMware)
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| Names:
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| LEGACY<00> Flags: <unique><active>
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| HTB<00> Flags: <group><active>
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| LEGACY<20> Flags: <unique><active>
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| HTB<1e> Flags: <group><active>
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| HTB<1d> Flags: <unique><active>
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|_ \x01\x02__MSBROWSE__\x02<01> Flags: <group><active>
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| smb-os-discovery:
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| OS: Windows XP (Windows 2000 LAN Manager)
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| OS CPE: cpe:/o:microsoft:windows_xp::-
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| Computer name: legacy
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| NetBIOS computer name: LEGACY\x00
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| Workgroup: HTB\x00
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|_ System time: 2021-05-18T01:01:14+03:00
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| smb-security-mode:
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| account_used: guest
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```
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## PORT 139/445 (SMB)
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Let's see if we can access any shares on the machine
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<img src="https://imgur.com/tHZtw5N.png"/>
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Seems like we can't so knowing this is a windows xp machine , it might be vulnerable to SMB exploit since this is a very old windows operating system , so let's run nmap `vuln` script to confirm the vulnerability.
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```bash
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nmap -p 445 --script vuln 10.10.10.4
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Starting Nmap 7.80 ( https://nmap.org ) at 2021-05-13 01:02 PKT
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Nmap scan report for 10.10.10.4
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Host is up (0.19s latency).
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PORT STATE SERVICE
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445/tcp open microsoft-ds
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|_clamav-exec: ERROR: Script execution failed (use -d to debug)
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Host script results:
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|_samba-vuln-cve-2012-1182: NT_STATUS_ACCESS_DENIED
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| smb-vuln-ms08-067:
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| VULNERABLE:
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| Microsoft Windows system vulnerable to remote code execution (MS08-067)
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| State: VULNERABLE
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| IDs: CVE:CVE-2008-4250
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| The Server service in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2,
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| Vista Gold and SP1, Server 2008, and 7 Pre-Beta allows remote attackers to execute arbitrary
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| code via a crafted RPC request that triggers the overflow during path canonicalization.
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| Disclosure date: 2008-10-23
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| References:
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| https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4250
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|_ https://technet.microsoft.com/en-us/library/security/ms08-067.aspx
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|_smb-vuln-ms10-054: false
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|_smb-vuln-ms10-061: ERROR: Script execution failed (use -d to debug)
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| smb-vuln-ms17-010:
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```
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This confirms that this machine is vulnerable to smb exploit so here I'll show case using with and without metasploit
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## Metasploit
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This CVE for this exploit is MS08-067
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<img src="https://imgur.com/qYIjQSk.png"/>
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<img src="https://i.imgur.com/hlDuzVn.png"/>
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Configure the options in the exploit
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<img src="https://imgur.com/2y2hq9x.png"/>
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<img src="https://imgur.com/0RZ7Ns3.png"/>
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## Without Metasploit
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Download the POC for MS 08-067
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<img src="https://imgur.com/JAa8Jzj.png"/>
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Here we can see that it's using a shell code of msfvenom reverse shell payload so we need to generate one
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<img src="https://imgur.com/VWr1TNl.png"/>
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Replace the shellcode which is in the script
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<img src="https://imgur.com/EikundA.png"/>
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Now let's run the script
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<img src="https://imgur.com/Jg6R9SU.png"/>
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Here it says it needs the target IP and port also the version of windows xp so I ran the aggressive scan to know which version of windows xp is this and chances were that it is XP 3
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<img src="https://i.imgur.com/T3uXpvg.png"/>
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<img src="https://i.imgur.com/xPbhu3H.png"/>
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And we get a shell
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