PS4 6.70 - 6.72 Kernel Exploit
Summary
In this project you will find a full implementation of the "ipv6 uaf" kernel exploit for the PlayStation 4 on 6.70 - 6.72. It will allow you to run arbitrary code as kernel, to allow jailbreaking and kernel-level modifications to the system. will launch the usual payload launcher (on port 9020).
This bug was originally discovered by Fire30, and subsequently found by Andy Nguyen
Patches Included
The following patches are applied to the kernel:
- Allow RWX (read-write-execute) memory mapping (mmap / mprotect)
- Syscall instruction allowed anywhere
- Dynamic Resolving (
sys_dynlib_dlsym) allowed from any process - Custom system call #11 (
kexec()) to execute arbitrary code in kernel mode - Allow unprivileged users to call
setuid(0)successfully. Works as a status check, doubles as a privilege escalation.
Notes
- The page will crash on successful kernel exploitation, this is normal
- There are a few races involved with this exploit, losing one of them and attempting the exploit again might not immediately crash the system but stability will take a hit.
Contributors
- Specter - advice + 5.05 webkit and (6.20) rop execution method
- kiwidog - advice
- Fire30 - bad_hoist
- Andy Nguyen - disclosed exploit code
- SocraticBliss - Shakespeare dev & crash test dummy