mirror of
https://github.com/carlospolop/hacktricks
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232 lines
6.4 KiB
Markdown
232 lines
6.4 KiB
Markdown
# I2C
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{% hint style="success" %}
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Jifunze na fanya mazoezi ya AWS Hacking:<img src="/.gitbook/assets/arte.png" alt="" data-size="line">[**HackTricks Training AWS Red Team Expert (ARTE)**](https://training.hacktricks.xyz/courses/arte)<img src="/.gitbook/assets/arte.png" alt="" data-size="line">\
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Jifunze na fanya mazoezi ya GCP Hacking: <img src="/.gitbook/assets/grte.png" alt="" data-size="line">[**HackTricks Training GCP Red Team Expert (GRTE)**<img src="/.gitbook/assets/grte.png" alt="" data-size="line">](https://training.hacktricks.xyz/courses/grte)
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<details>
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<summary>Support HackTricks</summary>
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* Angalia [**mpango wa usajili**](https://github.com/sponsors/carlospolop)!
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* **Jiunge na** 💬 [**kikundi cha Discord**](https://discord.gg/hRep4RUj7f) au [**kikundi cha telegram**](https://t.me/peass) au **tufuatilie** kwenye **Twitter** 🐦 [**@hacktricks\_live**](https://twitter.com/hacktricks\_live)**.**
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* **Shiriki mbinu za hacking kwa kuwasilisha PRs kwa** [**HackTricks**](https://github.com/carlospolop/hacktricks) na [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) repos za github.
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</details>
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{% endhint %}
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## Bus Pirate
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Ili kujaribu kama Bus Pirate inafanya kazi, ung'anisha +5V na VPU na 3.3V na ADC na upate ufikiaji wa bus pirate (Kwa kutumia Tera Term kwa mfano) na tumia amri `~`:
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```bash
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# Use command
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HiZ>~
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Disconnect any devices
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Connect (Vpu to +5V) and (ADC to +3.3V)
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Space to continue
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# Press space
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Ctrl
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AUX OK
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MODE LED OK
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PULLUP H OK
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PULLUP L OK
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VREG OK
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ADC and supply
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5V(4.96) OK
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VPU(4.96) OK
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3.3V(3.26) OK
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ADC(3.27) OK
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Bus high
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MOSI OK
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CLK OK
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MISO OK
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CS OK
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Bus Hi-Z 0
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MOSI OK
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CLK OK
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MISO OK
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CS OK
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Bus Hi-Z 1
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MOSI OK
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CLK OK
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MISO OK
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CS OK
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MODE and VREG LEDs should be on!
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Any key to exit
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#Press space
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Found 0 errors.
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```
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Kama unavyoona katika mstari wa amri uliopita, ilisema kwamba iligundua makosa 0. Hii ni muhimu sana kujua inafanya kazi baada ya kuununua au baada ya kubandika firmware.
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Ili kuungana na bus pirate unaweza kufuata nyaraka:
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.png>)
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Katika kesi hii, nitaungana na EPROM: ATMEL901 24C256 PU27:
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.png>)
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Ili kuzungumza na bus pirate nilitumia Tera Term iliyounganishwa na bandari ya COM ya pirate bus na Mipangilio --> Bandari ya Serial --> Kasi ya 115200.\
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Katika mawasiliano yafuatayo unaweza kupata jinsi ya kuandaa bus pirate kuzungumza I2C na jinsi ya kuandika na kusoma kutoka kwenye kumbukumbu (Maoni yanaonekana kwa kutumia "#", usitarajie sehemu hiyo katika mawasiliano):
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```bash
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# Check communication with buspirate
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i
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Bus Pirate v3.5
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Community Firmware v7.1 - goo.gl/gCzQnW [HiZ 1-WIRE UART I2C SPI 2WIRE 3WIRE KEYB LCD PIC DIO] Bootloader v4.5
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DEVID:0x0447 REVID:0x3046 (24FJ64GA00 2 B8)
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http://dangerousprototypes.com
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# Check voltages
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I2C>v
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Pinstates:
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1.(BR) 2.(RD) 3.(OR) 4.(YW) 5.(GN) 6.(BL) 7.(PU) 8.(GR) 9.(WT) 0.(Blk)
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GND 3.3V 5.0V ADC VPU AUX SCL SDA - -
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P P P I I I I I I I
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GND 3.27V 4.96V 0.00V 4.96V L H H L L
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#Notice how the VPU is in 5V becausethe EPROM needs 5V signals
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# Get mode options
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HiZ>m
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1. HiZ
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2. 1-WIRE
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3. UART
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4. I2C
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5. SPI
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6. 2WIRE
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7. 3WIRE
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8. KEYB
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9. LCD
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10. PIC
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11. DIO
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x. exit(without change)
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# Select I2C
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(1)>4
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I2C mode:
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1. Software
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2. Hardware
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# Select Software mode
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(1)>1
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Set speed:
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1. ~5kHz
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2. ~50kHz
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3. ~100kHz
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4. ~240kHz
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# Select communication spped
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(1)> 2
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Clutch disengaged!!!
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To finish setup, start up the power supplies with command 'W'
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Ready
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# Start communication
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I2C>W
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POWER SUPPLIES ON
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Clutch engaged!!!
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# Get macros
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I2C>(0)
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0.Macro menu
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1.7bit address search
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2.I2C sniffer
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#Get addresses of slaves connected
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I2C>(1)
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Searching I2C address space. Found devices at:
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0xA0(0x50 W) 0xA1(0x50 R)
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# Note that each slave will have a write address and a read address
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# 0xA0 ad 0xA1 in the previous case
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# Write "BBB" in address 0x69
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I2C>[0xA0 0x00 0x69 0x42 0x42 0x42]
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I2C START BIT
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WRITE: 0xA0 ACK
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WRITE: 0x00 ACK
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WRITE: 0x69 ACK
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WRITE: 0x42 ACK
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WRITE: 0x42 ACK
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WRITE: 0x42 ACK
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I2C STOP BIT
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# Prepare to read from address 0x69
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I2C>[0xA0 0x00 0x69]
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I2C START BIT
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WRITE: 0xA0 ACK
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WRITE: 0x00 ACK
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WRITE: 0x69 ACK
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I2C STOP BIT
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# Read 20B from address 0x69 configured before
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I2C>[0xA1 r:20]
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I2C START BIT
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WRITE: 0xA1 ACK
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READ: 0x42 ACK 0x42 ACK 0x42 ACK 0x20 ACK 0x48 ACK 0x69 ACK 0x20 ACK 0x44 ACK 0x72 ACK 0x65 ACK 0x67 ACK 0x21 ACK 0x20 ACK 0x41 ACK 0x41 ACK 0x41 ACK 0x00 ACK 0xFF ACK 0xFF ACK 0xFF
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NACK
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```
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### Sniffer
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Katika hali hii tutakuwa tunanusa mawasiliano ya I2C kati ya arduino na EPROM iliyopita, unahitaji tu kuwasiliana na vifaa vyote viwili kisha uunganishe bus pirate kwenye pini za SCL, SDA na GND:
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.png>)
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```bash
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I2C>m
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1. HiZ
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2. 1-WIRE
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3. UART
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4. I2C
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5. SPI
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6. 2WIRE
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7. 3WIRE
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8. KEYB
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9. LCD
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10. PIC
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11. DIO
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x. exit(without change)
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(1)>4
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I2C mode:
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1. Software
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2. Hardware
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(1)>1
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Set speed:
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1. ~5kHz
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2. ~50kHz
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3. ~100kHz
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4. ~240kHz
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(1)>1
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Clutch disengaged!!!
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To finish setup, start up the power supplies with command 'W'
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Ready
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# EVEN IF YOU ARE GOING TO SNIFF YOU NEED TO POWER ON!
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I2C>W
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POWER SUPPLIES ON
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Clutch engaged!!!
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# Start sniffing, you can see we sniffed a write command
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I2C>(2)
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Sniffer
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Any key to exit
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[0xA0+0x00+0x69+0x41+0x41+0x41+0x20+0x48+0x69+0x20+0x44+0x72+0x65+0x67+0x21+0x20+0x41+0x41+0x41+0x00+]
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```
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{% hint style="success" %}
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Jifunze na fanya mazoezi ya AWS Hacking:<img src="/.gitbook/assets/arte.png" alt="" data-size="line">[**HackTricks Training AWS Red Team Expert (ARTE)**](https://training.hacktricks.xyz/courses/arte)<img src="/.gitbook/assets/arte.png" alt="" data-size="line">\
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Jifunze na fanya mazoezi ya GCP Hacking: <img src="/.gitbook/assets/grte.png" alt="" data-size="line">[**HackTricks Training GCP Red Team Expert (GRTE)**<img src="/.gitbook/assets/grte.png" alt="" data-size="line">](https://training.hacktricks.xyz/courses/grte)
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<details>
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<summary>Support HackTricks</summary>
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* Angalia [**mpango wa usajili**](https://github.com/sponsors/carlospolop)!
|
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* **Jiunge na** 💬 [**kikundi cha Discord**](https://discord.gg/hRep4RUj7f) au [**kikundi cha telegram**](https://t.me/peass) au **tufuatilie** kwenye **Twitter** 🐦 [**@hacktricks\_live**](https://twitter.com/hacktricks\_live)**.**
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* **Shiriki mbinu za hacking kwa kuwasilisha PRs kwa** [**HackTricks**](https://github.com/carlospolop/hacktricks) na [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) repos za github.
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</details>
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{% endhint %}
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