CVE-2025-52457

# CVE-2025-52457 PoC - Timing Analysis Attack Simulation # This PoC demonstrates the concept of timing analysis attack # Note: Actual attack requires physical access and specialized equipment import time import numpy as np def measure_response_time(device, input_data): """ Simulate measuring response time of HBUS device In real attack, use hardware timing analyzer """ start = time.perf_counter_ns() # Simulated device response response = device.process_input(input_data) end = time.perf_counter_ns() return end - start, response def timing_attack_simulation(): """ Simplified timing attack demonstration Shows how timing differences can leak key information """ print("[*] CVE-2025-52457 Timing Attack PoC") print("[*] Target: Gallagher Command Centre HBUS Device") print("[*] Attack Vector: Physical Access + Timing Analysis") # Simulated measurements measurements = [] for i in range(1000): # In real attack, vary input and measure response time base_time = 50 # Base response time in ns variance = np.random.normal(0, 5) # Random noise timing = base_time + variance measurements.append(timing) # Analyze timing patterns avg_time = np.mean(measurements) std_dev = np.std(measurements) print(f"[*] Collected {len(measurements)} timing measurements") print(f"[*] Average response time: {avg_time:.2f}ns") print(f"[*] Standard deviation: {std_dev:.2f}ns") print("[*] Analyzing timing patterns for key extraction...") # Detection of timing discrepancies if std_dev > 3: print("[!] Timing discrepancy detected!") print("[!] Potential information leakage via timing side channel") return measurements if __name__ == "__main__": timing_attack_simulation()

{"cve": {"id": "CVE-2025-52457", "sourceIdentifier": "[email protected]", "published": "2025-11-18T04:15:44.140", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Observable Timing Discrepancy (CWE-208) in HBUS devices may allow an attacker with physical access to the device to extract device-specific keys, potentially compromising further site security. \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-208"}]}], "references": [{"url": "https://security.gallagher.com/en-NZ/Security-Advisories/CVE-2025-52457", "source": "[email protected]"}]}}