298d0b8e25
New recon + analysis toolkit: - CAN Bus: OBD/automotive frame sniffer, multirate, SD logging - UART+: auto-baudrate detection (parallel test all), session logging - Protocol: unified UART/SPI/I2C sniffer with real-time stats - MemSearch: post-dump analysis (strings, magic bytes, IPs) - Logger: persistent session metadata to JSON (NVS + SD) - Injector: AT commands, OBD-II, credential injection + capture - Scope: ASCII oscilloscope (GPIO waveform at ~100kHz) - Wizard: two-wire auto-detect + I2C/SWD register RW - Settings: persist scan params, voltage thresholds, config JSON Now 18 total modules covering discovery, sniffing, dump, analysis, injection. README updated with the module table and category breakdown. Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AAhMHMRAQLQ9hSbBECKNfn
79 lines
4.3 KiB
Markdown
79 lines
4.3 KiB
Markdown
# Card-Crack
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A manual-trigger hardware/network **recon toolkit** for the
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[M5Stack Cardputer](https://docs.m5stack.com/en/core/Cardputer) (ESP32-S3),
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built for **home-lab pentesting of devices you own** — your router, a car's
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OBD/USB port, a PC, smart appliances.
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> ⚠️ **Authorized use only.** Every tool here is scoped for your own bench:
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> single targets you enter by hand, curated default-credential lists (not
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> brute-force), rate-limited network checks, and read-only descriptor/ID
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> reads. Nothing scans, transmits, or replays on its own — you press the
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> action key. Don't point it at anything you don't own or run.
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## Modules
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| Module | What it does |
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|-------------|---------------------------------------------------------------------|
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| **Pin Scan**| JTAGulator-style detection of **UART / JTAG / SWD** pins on the probe header. UART baud estimation; JTAG & SWD IDCODE reads. |
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| **V-Sense** | Live target-voltage probe through a divider; guesses the logic family so you know what you're touching before driving a pin. |
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| **UART Sniff** | Passive UART capture (hex+ascii, selectable baud); freeze a frame and **replay it on a keypress** (manual TX only). |
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| **USB Enum**| ESP32-S3 as USB host — reads **descriptors** (VID/PID, class, strings, config) to fingerprint an unknown device. Read-only. |
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| **DefCred** | Checks a single host (default: gateway) against a short list of **factory-default logins** over HTTP Basic Auth. Stops on first hit. |
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| **Bus Dump**| Reads **SPI-NOR (25-series)** and **I2C EEPROM (24-series)** chips on your own boards to `/dump/*.bin` on microSD. Read-only. |
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| **Crypto Lab** | Offline analysis of a dumped blob: **Shannon entropy**, magic-byte **file-ID**, single-byte **XOR** brute, **AES-128-ECB** known-key decrypt. |
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| **Exfil** | Browse the SD card and **stream a dump to the host** over USB serial as base64 (`base64 -d`); writes a manifest of what you pulled. |
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| **Theme** | Live **UI theme switcher** — 5 palettes, saved to NVS, restyles everything instantly. |
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| **CAN Bus** | OBD/automotive **CAN frame sniffer** — listen on MCP2515 over SPI, log frames to SD, cycle bus speeds. |
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| **UART+** | Enhanced UART with **parallel auto-baudrate detection**, session logging to binary, protocol hints. |
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| **Protocol**| Unified **UART/SPI/I2C sniffer** — real-time stats (packets/sec, data rate, frame errors). |
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| **MemSearch** | Post-dump **binary analysis** — find strings, magic bytes, hardcoded IPs, entropy spikes in captured blobs. |
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| **Logger** | **Persistent session logging** — auto-log to JSON with metadata (voltage, pins, targets, timestamps). Export logs. |
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| **Injector**| **Manual credential/command injection** — AT commands, OBD-II queries, Telnet login attempts. Capture responses. |
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| **Scope** | Simple **ASCII oscilloscope** — sample GPIO at ~100kHz, display waveform, spot edges and DC bias. |
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| **Wizard** | **Two-wire protocol auto-detect** — sniff I2C/SWD on pin pairs, register read/write on found slave. |
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| **Settings**| Persist configuration (scan delay, voltage thresholds, timeouts, baud list) to NVS. JSON export/import. |
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## 18 modules total
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**Discover**: Pin Scan, V-Sense, USB Enum, CAN Bus, Wizard
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**Sniff & Replay**: UART Sniff, UART+, Protocol, Scope
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**Dump & Export**: Bus Dump, Logger, Exfil
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**Analyse**: Crypto Lab, MemSearch
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**Inject & Test**: Injector, DefCred
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**System**: Theme, Settings
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## Look & feel
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Boot splash with a sweeping-glow logo, CRT scanlines, a breathing menu
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cursor, wipe-in transitions, spinners and progress bars. Switch palettes any
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time in the **Theme** module.
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## Build & flash
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Requires [PlatformIO](https://platformio.org/).
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```bash
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# set your lab Wi-Fi for the DefCred module (or edit defcred.cpp)
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pio run -e cardputer \
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-a "--build-property build.flags=-DCC_WIFI_SSID='\"MyAP\"' -DCC_WIFI_PASS='\"secret\"'"
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pio run -e cardputer -t upload
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pio device monitor
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```
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## Controls
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- Menu: `;` up · `.` down · `Enter` open
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- In a module: <code>`</code> (backtick) back · per-module hints on the bottom bar
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## Layout
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```
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src/core/ shell, module interface, UI helpers, pin map
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src/modules/ one file per recon tool
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docs/ HARDWARE.md wiring + safety
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```
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See **[docs/HARDWARE.md](docs/HARDWARE.md)** before wiring — the S3 is a 3V3
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part and 5V on a bare GPIO will destroy it.
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