CVE-2025-52578

# 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()

{"cve": {"id": "CVE-2025-52578", "sourceIdentifier": "[email protected]", "published": "2025-11-18T04:15:44.330", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Incorrect Usage of Seeds in Pseudo-Random Number Generator (CWE- 335) vulnerability in the High Sec ELM may allow a sophisticated attacker with physical access, to compromise internal device communications.\n\nThis issue affects Command Centre Server: \n\n9.30 prior to vCR9.30.251028a (distributed in 9.30.2881 (MR3)), 9.20 prior to vCR9.20.251028a (distributed in 9.20.3265 (MR5)), 9.10 prior to vCR9.10.251028a (distributed in 9.10.4135 (MR8)), all versions of 9.00 and prior."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "baseScore": 5.7, "baseSeverity": "MEDIUM", "attackVector": "PHYSICAL", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 0.5, "impactScore": 5.2}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-335"}]}], "references": [{"url": "https://security.gallagher.com/en-NZ/Security-Advisories/CVE-2025-52578", "source": "[email protected]"}]}}