NullSec UDS

Unified Diagnostic Services (ISO 14229) security research and testing toolkit.

🔧 Features

• Full UDS Implementation: All standard diagnostic services
• Security Access Bypass: Multiple bypass techniques
• Seed-Key Algorithms: Reverse engineering support
• Flash Programming: Read/write ECU memory
• Routine Control: Execute diagnostic routines
• Session Management: Automated session handling

🔐 UDS Services

Diagnostic Session Control (0x10)

uds-cli --session default        # 0x01
uds-cli --session programming    # 0x02
uds-cli --session extended       # 0x03

Security Access (0x27)

# Request seed
uds-cli --security-seed --level 1

# Brute force key
uds-cli --bruteforce --level 1 --threads 4

# Use known algorithm
uds-cli --calc-key --algo vw_sa2 --seed 0xDEADBEEF

Read/Write Memory (0x23/0x3D)

# Dump ECU memory
uds-cli --read-memory 0x00080000 --size 0x10000 -o dump.bin

# Write calibration
uds-cli --write-memory 0x00080000 -i calibration.bin

Download/Upload (0x34/0x35/0x36/0x37)

# Extract firmware
uds-cli --upload --address 0x00000000 --size 0x200000

# Flash new firmware
uds-cli --download -i firmware.bin --address 0x00000000

🔓 Security Research

Seed-Key Analysis

• Algorithm identification
• Timing attacks
• Replay protection bypass
• Key generation reverse engineering

Common Bypasses

# Timing attack
uds-cli --timing-attack --service 0x27

# Session confusion
uds-cli --session-attack

# Diagnostic ID spoofing
uds-cli --spoof-tester-id 0xF1

📡 Protocol Support

Transport	Standard	Speed
CAN 2.0A	ISO 15765-2	500 kbps
CAN 2.0B	ISO 15765-2	500 kbps
CAN-FD	ISO 15765-2	2/5 Mbps
DoIP	ISO 13400	Ethernet
K-Line	ISO 14230	10.4 kbps

🔌 Hardware

• SocketCAN (Linux native)
• J2534 passthru devices
• CANtact / CANable
• Vector CANalyzer
• PEAK PCAN-USB

⚠️ Disclaimer

For authorized security research only. Modifying vehicle ECUs may void warranties and violate regulations.

📜 License

MIT License - Part of NullSec Linux v5.0

Twitter: x.com/AnonAntics