T05 · Unauthorized Access and Privilege Escalation
Warning
- Location
api_utils_fixed.py:138- Finding
Fail-Open Fallback Permits File Access Outside the Skill Directory
- Content
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Tuple[bool, str]: """ Verify an image file path with strict path restrictions. """ try: # Check whether the path validator is available if not HAS_PATH_VALIDATOR: logger.warning("Path validator unavailable; using basic validation") return _basic_file_path_validation(file_path) # Get validator validator = get_validator() if validator is None: return False, "Path validator is not initialized; file path cannot be verified" ``` The fallback implementation does not enforce a trusted base directory: ```python def _basic_file_path_validation(file_path: str) -> Tuple[bool, str]: """ Basic file path validation used when the path validator is unavailable. """ try: # Check for path traversal if ".." in file_path or file_path.startswith("~"): return False, "Possible path traversal attack detected" # Resolve the absolute path abs_path = Path(file_path).resolve() # Check whether the file exists if not abs_path.exists(): return False, f"File does not exist: {file_path}" # Check whether the path is a file if not abs_path.is_file(): return False, f"Path is not a file: {file_path}" # Check file size max_size_mb = 50 file_size_mb = abs_path.stat().st_size / (1024 * 1024) if file_size_mb > max_size_mb: return False, ( f"File is too large: {file_size_mb:.2f} MB " f"(limit: {max_size_mb} MB)" ) # Check file extension allowed_extensions = { '.jpg', '.jpeg', '.png', '.bmp', '.gif', '.tiff', ...[truncated 2880 chars]- Remediation
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