# iOS Binary Protection Missing

> Detects iOS app configurations missing binary hardening features like ASLR, stack canaries, and ARC.

- Skill: `zakirkun/ios-binary-protection-missing` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add zakirkun/ios-binary-protection-missing`
- Raw SKILL.md: https://api.skillmd.com/api/skills/zakirkun/ios-binary-protection-missing/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: zakirkun (https://skillmd.com/u/zakirkun)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/zakirkun/ios-binary-protection-missing

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# iOS Binary Protection Missing

## Overview
iOS binaries should be compiled with hardening flags:
- **PIE (ASLR)**: Randomizes memory addresses, making exploits harder
- **Stack Canaries**: Detects stack smashing before return address overwrite
- **ARC (Automatic Reference Counting)**: Reduces use-after-free vulnerabilities
- **Bitcode**: Allows Apple to re-optimize binary with future security improvements

Missing these protections makes reverse engineering and exploitation easier.

## Remediation
- Enable PIE: `-pie` linker flag
- Enable Stack Canaries: `-fstack-protector-all`
- Enable ARC in Objective-C projects
- Build with latest Xcode toolchain