PPPwn - OpenwWrt for 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 7.50 / 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

• Router with installed openwrt
• Usb flash for router memory
• Some skills

Usage

I won't show you how to install openwrt, I'll give you a ready-made script my router is configured in repeater mode(see video on youtube)

On your computer, install mobaxterm: https://mobaxterm.mobatek.net/download-home-edition.html

session > SSH > enter router ip(I changed the router's IP so that there are no conflicts with the main routers in repeater mode)

unpack my repository into a folder and move it to this folder

cd PPPwn_openwrt-master/

and run script 1st_step.sh

sh 1st_step.sh

your router will reboot check if the flash drive is detected

df /overlay /

your output should look like this

Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sda1              7760088     28120   7316276   0% /overlay
overlayfs:/overlay     7760088     28120   7316276   0% /

cd PPPwn_openwrt-master/

and run script 2ns_step.sh

sh 2nd_step.sh

the script will ask for your version

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 you console to show the message "Cannot connect to network: (NW-31274-7)" before trying this PPOE 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