Description

Presented at CODE BLUE 2023, this project titled Enhanced Vulnerability Hunting in WDM Drivers with Symbolic Execution and Taint Analysis introduces IOCTLance, a tool that enhances its capacity to detect various vulnerability types in Windows Driver Model (WDM) drivers. In a comprehensive evaluation involving 104 known vulnerable WDM drivers and 328 unknow n ones, IOCTLance successfully unveiled 117 previously unidentified vulnerabilities within 26 distinct drivers. As a result, 41 CVEs were reported, encompassing 25 cases of denial of service, 5 instances of insufficient access control, and 11 examples of elevation of privilege.

Features

Target Vulnerability Types

• map physical memory
• controllable process handle
• buffer overflow
• null pointer dereference
• read/write controllable address
• arbitrary shellcode execution
• arbitrary wrmsr
• arbitrary out
• dangerous file operation

Optional Customizations

• length limit
• loop bound
• total timeout
• IoControlCode timeout
• recursion
• symbolize data section

Build

Docker (Recommand)

docker build .

Local

dpkg --add-architecture i386
apt-get update
apt-get install git build-essential python3 python3-pip python3-dev htop vim sudo \
                openjdk-8-jdk zlib1g:i386 libtinfo5:i386 libstdc++6:i386 libgcc1:i386 \
                libc6:i386 libssl-dev nasm binutils-multiarch qtdeclarative5-dev libpixman-1-dev \
                libglib2.0-dev debian-archive-keyring debootstrap libtool libreadline-dev cmake \
                libffi-dev libxslt1-dev libxml2-dev

pip install angr==9.2.18 ipython==8.5.0 ipdb==0.13.9

Analysis

# python3 analysis/ioctlance.py -h
usage: ioctlance.py [-h] [-i IOCTLCODE] [-T TOTAL_TIMEOUT] [-t TIMEOUT] [-l LENGTH] [-b BOUND]
                    [-g GLOBAL_VAR] [-a ADDRESS] [-e EXCLUDE] [-o] [-r] [-c] [-d]
                    path

positional arguments:
  path                  dir (including subdirectory) or file path to the driver(s) to analyze

optional arguments:
  -h, --help            show this help message and exit
  -i IOCTLCODE, --ioctlcode IOCTLCODE
                        analyze specified IoControlCode (e.g. 22201c)
  -T TOTAL_TIMEOUT, --total_timeout TOTAL_TIMEOUT
                        total timeout for the whole symbolic execution (default 1200, 0 to unlimited)
  -t TIMEOUT, --timeout TIMEOUT
                        timeout for analyze each IoControlCode (default 40, 0 to unlimited)
  -l LENGTH, --length LENGTH
                        the limit of number of instructions for technique L   engthLimiter (default 0, 0
                        to unlimited)
  -b BOUND, --bound BOUND
                        the bound for technique LoopSeer (default 0, 0 to unlimited)
  -g GLOBAL_VAR, --global_var GLOBAL_VAR
                        symbolize how many bytes in .data section (default 0 hex)
  -a ADDRESS, --address ADDRESS
                        address of ioctl handler to directly start hunting with blank state (e.g.
                        140005c20)
  -e EXCLUDE, --exclude EXCLUDE
                        exclude function address split with , (e.g. 140005c20,140006c20)
  -o, --overwrite       overwrite x.sys.json if x.sys has been analyzed (default False)
  -r, --recursion       do not kill state if detecting recursion (default False)
  -c, --complete        get complete base state (default False)
  -d, --debug           print debug info while analyzing (default False)

Evaluation

# python3 evaluation/statistics.py -h
usage: statistics.py [-h] [-w] path

positional arguments:
  path        target dir or file path

optional arguments:
  -h, --help  show this help message and exit
  -w, --wdm   copy the wdm drivers into <path>/wdm

Test

1. Compile the testing examples in test to generate testing driver files.
2. Run IOCTLance against the drvier files.

Reference

• ucsb-seclab/popkorn-artifact
• eclypsium/Screwed-Drivers
• koutto/ioctlbf
• Living Off The Land Drivers

NTLM Relay Gat is a powerful tool designed to automate the exploitation of NTLM relays using ntlmrelayx.py from the Impacket tool suite. By leveraging the capabilities of ntlmrelayx.py, NTLM Relay Gat streamlines the process of exploiting NTLM relay vulnerabilities, offering a range of functionalities from listing SMB shares to executing commands on MSSQL databases.

Features

• Multi-threading Support: Utilize multiple threads to perform actions concurrently.
• SMB Shares Enumeration: List available SMB shares.
• SMB Shell Execution: Execute a shell via SMB.
• Secrets Dumping: Dump secrets from the target.
• MSSQL Database Enumeration: List available MSSQL databases.
• MSSQL Command Execution: Execute operating system commands via xp_cmdshell or start SQL Server Agent jobs.

Prerequisites

Before you begin, ensure you have met the following requirements:

• proxychains properly configured with ntlmrelayx SOCKS relay port
• Python 3.6+

Installation

To install NTLM Relay Gat, follow these steps:

1. Ensure that Python 3.6 or higher is installed on your system.

2. Clone NTLM Relay Gat repository:

git clone https://github.com/ad0nis/ntlm_relay_gat.git
cd ntlm_relay_gat

1. Install dependencies, if you don't have them installed already:

pip install -r requirements.txt

NTLM Relay Gat is now installed and ready to use.

Usage

To use NTLM Relay Gat, make sure you've got relayed sessions in ntlmrelayx.py's socks command output and that you have proxychains configured to use ntlmrelayx.py's proxy, and then execute the script with the desired options. Here are some examples of how to run NTLM Relay Gat:

# List available SMB shares using 10 threads
python ntlm_relay_gat.py --smb-shares -t 10

# Execute a shell via SMB
python ntlm_relay_gat.py --smb-shell --shell-path /path/to/shell

# Dump secrets from the target
python ntlm_relay_gat.py --dump-secrets

# List available MSSQL databases
python ntlm_relay_gat.py --mssql-dbs

# Execute an operating system command via xp_cmdshell
python ntlm_relay_gat.py --mssql-exec --mssql-method 1 --mssql-command 'whoami'

Disclaimer

NTLM Relay Gat is intended for educational and ethical penetration testing purposes only. Usage of NTLM Relay Gat for attacking targets without prior mutual consent is illegal. The developers of NTLM Relay Gat assume no liability and are not responsible for any misuse or damage caused by this tool.

License

This project is licensed under the MIT License - see the LICENSE file for details.