| Room | Legacy |
| ------------------------------------ | ------------------------------------------ |
| Url | https://app.hackthebox.com/machines/Legacy |
| Sujets | Network / Vulnerability assesment |
| Active/Retired lors de la résolution | Retired |
| Difficulté | Easy |
---
### Nmap
```bash
PORT STATE SERVICE REASON VERSION
135/tcp open msrpc syn-ack Microsoft Windows RPC
139/tcp open netbios-ssn syn-ack Microsoft Windows netbios-ssn
445/tcp open �m`U syn-ack Windows XP microsoft-ds
Service Info: OSs: Windows, Windows XP; CPE: cpe:/o:microsoft:windows, cpe:/o:microsoft:windows_xp
Host script results:
| p2p-conficker:
| Checking for Conficker.C or higher...
| Check 1 (port 40600/tcp): CLEAN (Couldn't connect)
| Check 2 (port 53966/tcp): CLEAN (Couldn't connect)
| Check 3 (port 50902/udp): CLEAN (Failed to receive data)
| Check 4 (port 47445/udp): CLEAN (Failed to receive data)
|_ 0/4 checks are positive: Host is CLEAN or ports are blocked
| nbstat: NetBIOS name: LEGACY, NetBIOS user: <unknown>, NetBIOS MAC: 00:50:56:b9:7d:d3 (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>
| Statistics:
| 00:50:56:b9:7d:d3:00:00:00:00:00:00:00:00:00:00:00
| 00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00
|_ 00:00:00:00:00:00:00:00:00:00:00:00:00:00
| smb-security-mode:
| account_used: <blank>
| authentication_level: user
| challenge_response: supported
|_ message_signing: disabled (dangerous, but default)
|_smb2-time: Protocol negotiation failed (SMB2)
|_smb2-security-mode: Couldn't establish a SMBv2 connection.
| 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: 2023-09-08T22:42:35+03:00
|_clock-skew: mean: 5d00h27m39s, deviation: 2h07m17s, median: 4d22h57m38s
```
Du windows XP, du service SMB... Est-ce qu'on va vraiment aller chercher très loin ? Je ne pense pas :). Confirmons la présence de la CVE rapidement, pour le beau geste:
```
nmap -A --script="*vuln*" -vv 10.10.10.4
PORT STATE SERVICE REASON VERSION
135/tcp open msrpc syn-ack Microsoft Windows RPC
139/tcp open netbios-ssn syn-ack Microsoft Windows netbios-ssn
445/tcp open microsoft-ds syn-ack Microsoft Windows XP microsoft-ds
Service Info: OSs: Windows, Windows XP; CPE: cpe:/o:microsoft:windows, cpe:/o:microsoft:windows_xp
Host script results:
| smb-vuln-ms17-010:
| VULNERABLE:
| Remote Code Execution vulnerability in Microsoft SMBv1 servers (ms17-010)
| State: VULNERABLE
| IDs: CVE:CVE-2017-0143
| Risk factor: HIGH
| A critical remote code execution vulnerability exists in Microsoft SMBv1
| servers (ms17-010).
|
| Disclosure date: 2017-03-14
| References:
| https://technet.microsoft.com/en-us/library/security/ms17-010.aspx
| https://blogs.technet.microsoft.com/msrc/2017/05/12/customer-guidance-for-wannacrypt-attacks/
|_ https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-0143
|_samba-vuln-cve-2012-1182: NT_STATUS_ACCESS_DENIED
|_smb-vuln-ms10-061: ERROR: Script execution failed (use -d to debug)
|_smb-vuln-ms10-054: false
| smb-vuln-ms08-067:
| VULNERABLE:
| Microsoft Windows system vulnerable to remote code execution (MS08-067)
| State: VULNERABLE
| IDs: CVE:CVE-2008-4250
| The Server service in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2,
| Vista Gold and SP1, Server 2008, and 7 Pre-Beta allows remote attackers to execute arbitrary
| code via a crafted RPC request that triggers the overflow during path canonicalization.
|
| Disclosure date: 2008-10-23
| References:
| https://technet.microsoft.com/en-us/library/security/ms08-067.aspx
|_ https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4250
```
Tiens donc... Il ne reste plus qu'à lancer metasploit (on ne va pas se prendre la tête), avec le module qui va bien: ms08_067_netapi, pour la CVE CVE-2008-4250.
On entre les options adéquates (qui se limitent au RHOST/LHOST...), run, hop on est root.