T09 · Insecure Skill Coding Practices
Warning
- Location
- fix_setup.sh:15
- Finding
- Setup Script Destructively Overwrites Existing Parser Implementations<![CDATA[ ## Vulnerability Details **File Location**: `fix_setup.sh:15-82` **Vulnerability Type**: Unconditional destructive file replacement **Risk Level**: Medium ### Vulnerable Code ```bash # 2. Create the missing parser placeholder file echo "Creating React parser placeholder..." cat > scripts/parser/react_parser.py << 'EOF' from .base import BaseCodeParser, ParsedComponent, ParsedAPI, ParsedRule from typing import List, Dict, Any class ReactParser(BaseCodeParser): """React component parser (placeholder implementation)""" def parse(self) -> Dict[str, Any]: return { "file_info": { "path": self.file_path, "type": "react", "note": "React parser is not fully implemented" }, "components": [], "apis": [], "business_rules": [], "complexity": self.calculate_complexity() } def extract_components(self) -> List[ParsedComponent]: return [] def extract_apis(self) -> List[ParsedAPI]: return [] def extract_business_rules(self) -> List[ParsedRule]: return [] EOF # 3. Create Angular parser placeholder echo "Creating Angular parser placeholder..." cat > scripts/parser/angular_parser.py << 'EOF' from .base import BaseCodeParser, ParsedComponent, ParsedAPI, ParsedRule from typing import List, Dict, Any class AngularParser(BaseCodeParser): """Angular component parser (placeholder implementation)""" def parse(self) -> Dict[str, Any]: return { "file_info": { "path": self.file_path, "type": "angular", "note": "Angular parser is not fully implemented" }, "components": [], "apis": [], "business_rules": [], "complexity": self.calculate_complexity() } def extract_components(self) -> List[ParsedComponent]: return [] ...[truncated 2095 chars]
- Remediation
- <![CDATA[ ## Remediation Suggestions 1. Create placeholder files only when they are absent: ```bash if [ ! -e scripts/parser/react_parser.py ]; then # Create the placeholder. fi ``` 2. Never overwrite an existing implementation by default. Require an explicit `--force` option and interactive confirmation for destructive replacement. 3. Back up an existing file before any authorized replacement. 4. Write new content to a securely created temporary file and atomically rename it into place only after successful validation. 5. Make the setup operation idempotent so repeated execution does not change a correctly configured installation. 6. Add automated tests verifying that running the setup script does not modify existing parser files. 7. Update the script comments and messages so they accurately disclose every file that may be created or replaced. ]]>