Pishi Reloaded: Binary Only Address Sanitizer for macOS KEXT

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Link: r00tkitsmm.github.io

You Should Know:

Address sanitizers are critical tools for identifying memory corruption vulnerabilities in kernel extensions (KEXTs) on macOS. Pishi Reloaded enhances binary-only analysis, making it invaluable for security researchers and penetration testers.

Key Features of Pishi Reloaded:

  • Binary-Only Analysis: Works without source code, ideal for reverse engineering.
  • macOS KEXT Support: Specifically designed for kernel extensions.
  • Memory Error Detection: Catches use-after-free, buffer overflows, and other memory issues.

Practical Usage:

Installation (macOS):

 Clone the repository 
git clone https://github.com/r00tkitsmm/Pishi-Reloaded.git 
cd Pishi-Reloaded

Build the tool (requires Xcode) 
make

Run against a KEXT binary 
./pishi-reloaded /path/to/kext.bin 

Common Commands for macOS Security Testing:

 List loaded KEXTs 
kextstat

Unload a suspicious KEXT 
sudo kextunload -b com.example.kext

Check for memory leaks with Pishi 
./pishi-reloaded --leak-check /path/to/kext 

Linux Alternatives (for Comparison):

 Use Valgrind for Linux kernel modules 
valgrind --tool=memcheck --leak-check=yes /path/to/module.ko

Check kernel addresses 
sudo cat /proc/kallsyms | grep vulnerable_function 

Windows Memory Analysis (Cross-Reference):

 List loaded drivers 
driverquery

Scan for vulnerabilities with WinDbg 
!analyze -v 

What Undercode Say:

Pishi Reloaded fills a critical gap in macOS security research by enabling deep binary analysis without source access. Combining it with traditional tools like `kextstat` and `Valgrind` strengthens vulnerability detection across platforms. Always verify findings in a sandboxed environment before real-world exploitation.

Expected Output:

[Pishi-Reloaded] Scanning kext.bin... 
Detected potential buffer overflow at 0x7fff12345678 
[bash] Use-after-free in function _kext_internal_call 

For further reading, visit the official repository.

References:

Reported By: Florian Hansemann – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

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