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15.5 kB
| #!/usr/bin/env python3 | |
| """ | |
| Hugging Face Inference Engine for CVE Cybersecurity LLM | |
| Uses Llama 3.1 8B model for CVE analysis and security recommendations. | |
| Supports both base model and fine-tuned models. | |
| """ | |
| import json | |
| import logging | |
| import time | |
| import os | |
| from pathlib import Path | |
| from typing import Dict, List, Any, Optional | |
| import sys | |
| # Add project root to path | |
| project_root = Path(__file__).parent.parent.parent | |
| sys.path.insert(0, str(project_root)) | |
| from config import Config | |
| # Import transformers | |
| try: | |
| from transformers import AutoTokenizer, AutoModelForCausalLM | |
| from peft import PeftModel, PeftConfig | |
| import torch | |
| from torch.nn import functional as F | |
| from huggingface_hub import login | |
| except ImportError as e: | |
| print(f"Error importing transformers: {e}") | |
| print("Please install: pip install transformers torch accelerate peft") | |
| sys.exit(1) | |
| # Configure logging | |
| logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s') | |
| logger = logging.getLogger(__name__) | |
| class HFCVEInferenceEngine: | |
| """Hugging Face inference engine for CVE cybersecurity analysis""" | |
| def __init__(self, model_name: str = "meta-llama/Meta-Llama-3-8B", use_fine_tuned: bool = False, fine_tuned_path: str = "models/fine_tuned_cve_production"): | |
| self.config = Config() | |
| self.model_name = model_name | |
| self.device = "cuda" if torch.cuda.is_available() else "cpu" | |
| self.use_fine_tuned = use_fine_tuned | |
| self.fine_tuned_path = Path(fine_tuned_path) | |
| # Load and authenticate with token | |
| self.token = self._load_token() | |
| self._authenticate() | |
| # Initialize model and tokenizer | |
| self.tokenizer = None | |
| self.model = None | |
| # System prompts for different analysis types | |
| self.system_prompts = { | |
| 'vulnerability_analysis': """You are a cybersecurity expert. Analyze the CVE and provide: | |
| - Severity assessment (Critical/High/Medium/Low) | |
| - Key technical details | |
| - Impact analysis | |
| - Brief remediation steps | |
| Keep responses concise and actionable.""", | |
| 'remediation': """You are a cybersecurity specialist. Provide specific remediation steps: | |
| - Immediate actions | |
| - Patch information | |
| - Workarounds | |
| - Verification steps | |
| Focus on practical solutions.""", | |
| 'technical_analysis': """You are a technical security analyst. Provide: | |
| - Root cause analysis | |
| - Attack mechanism | |
| - Technical impact | |
| - Detection recommendations | |
| Use technical depth for security professionals.""", | |
| 'product_analysis': """You are a product security analyst. Analyze: | |
| - Vulnerability trends | |
| - Risk assessment | |
| - Security recommendations | |
| - Vendor practices | |
| Provide actionable insights.""" | |
| } | |
| logger.info(f"Initializing HF inference engine on {self.device}") | |
| if self.use_fine_tuned: | |
| logger.info(f"Using fine-tuned model from: {self.fine_tuned_path}") | |
| else: | |
| logger.info(f"Using base model: {self.model_name}") | |
| self._load_model() | |
| def _load_token(self) -> str: | |
| """Load Hugging Face token from file""" | |
| token_file = Path("llama_token.txt") | |
| if token_file.exists(): | |
| with open(token_file, 'r') as f: | |
| token = f.read().strip() | |
| logger.info("✅ Hugging Face token loaded") | |
| return token | |
| else: | |
| raise FileNotFoundError("llama_token.txt not found. Please create this file with your Hugging Face token.") | |
| def _authenticate(self): | |
| """Authenticate with Hugging Face""" | |
| try: | |
| # Set environment variable for token | |
| os.environ["HF_TOKEN"] = self.token | |
| login(token=self.token) | |
| logger.info("✅ Successfully authenticated with Hugging Face") | |
| except Exception as e: | |
| logger.error(f"❌ Authentication failed: {e}") | |
| raise | |
| def _load_model(self): | |
| """Load the model and tokenizer""" | |
| try: | |
| if self.use_fine_tuned: | |
| self._load_fine_tuned_model() | |
| else: | |
| self._load_base_model() | |
| except Exception as e: | |
| logger.error(f"Error loading model: {e}") | |
| raise | |
| def _load_fine_tuned_model(self): | |
| """Load fine-tuned model with LoRA adapter""" | |
| if not self.fine_tuned_path.exists(): | |
| logger.error(f"Fine-tuned model not found at {self.fine_tuned_path}") | |
| logger.info("Falling back to base model...") | |
| self.use_fine_tuned = False | |
| self._load_base_model() | |
| return | |
| logger.info(f"Loading fine-tuned model from {self.fine_tuned_path}") | |
| try: | |
| # Load LoRA configuration | |
| config = PeftConfig.from_pretrained(self.fine_tuned_path) | |
| logger.info(f"Base model: {config.base_model_name_or_path}") | |
| logger.info(f"Adapter type: {config.peft_type}") | |
| # Load tokenizer from fine-tuned model | |
| logger.info("Loading tokenizer...") | |
| self.tokenizer = AutoTokenizer.from_pretrained(self.fine_tuned_path) | |
| if self.tokenizer.pad_token is None: | |
| self.tokenizer.pad_token = self.tokenizer.eos_token | |
| # Load base model | |
| logger.info("Loading base model...") | |
| base_model = AutoModelForCausalLM.from_pretrained( | |
| config.base_model_name_or_path, | |
| token=self.token, | |
| torch_dtype=torch.float16 if self.device == "cuda" else torch.float32, | |
| device_map="auto" if self.device == "cuda" else None, | |
| trust_remote_code=True | |
| ) | |
| # Load LoRA adapter | |
| logger.info("Loading LoRA adapter...") | |
| self.model = PeftModel.from_pretrained(base_model, self.fine_tuned_path) | |
| if self.device == "cpu": | |
| self.model = self.model.to(self.device) | |
| logger.info("✅ Fine-tuned model loaded successfully!") | |
| except Exception as e: | |
| logger.error(f"Failed to load fine-tuned model: {e}") | |
| logger.info("Falling back to base model...") | |
| self.use_fine_tuned = False | |
| self._load_base_model() | |
| def _load_base_model(self): | |
| """Load base model""" | |
| logger.info(f"Loading tokenizer for {self.model_name}...") | |
| self.tokenizer = AutoTokenizer.from_pretrained( | |
| self.model_name, | |
| token=self.token, | |
| trust_remote_code=True | |
| ) | |
| logger.info(f"Loading model for {self.model_name}...") | |
| self.model = AutoModelForCausalLM.from_pretrained( | |
| self.model_name, | |
| token=self.token, | |
| torch_dtype=torch.float16 if self.device == "cuda" else torch.float32, | |
| device_map="auto" if self.device == "cuda" else None, | |
| trust_remote_code=True | |
| ) | |
| if self.device == "cpu": | |
| self.model = self.model.to(self.device) | |
| logger.info("✅ Base model and tokenizer loaded successfully") | |
| def generate_response(self, query: str, context: List[Dict[str, Any]], | |
| analysis_type: str = 'vulnerability_analysis') -> str: | |
| """Generate response using the loaded model""" | |
| if not self.model or not self.tokenizer: | |
| return "Error: Model not loaded" | |
| try: | |
| # Build context text | |
| context_text = self._build_context_text(context) | |
| # Choose prompt format based on model type | |
| if self.use_fine_tuned: | |
| # Use instruction format for fine-tuned model | |
| full_prompt = self._format_prompt_for_fine_tuned(query, context_text, analysis_type) | |
| else: | |
| # Use system prompt format for base model | |
| full_prompt = self._format_prompt_for_base_model(query, context_text, analysis_type) | |
| # Tokenize | |
| inputs = self.tokenizer(full_prompt, return_tensors="pt", truncation=True, max_length=2048) | |
| inputs = {k: v.to(self.device) for k, v in inputs.items()} | |
| # Generate | |
| with torch.no_grad(): | |
| outputs = self.model.generate( | |
| **inputs, | |
| max_new_tokens=512, | |
| temperature=0.3, | |
| top_p=0.9, | |
| do_sample=True, | |
| pad_token_id=self.tokenizer.eos_token_id | |
| ) | |
| # Decode response and clean up | |
| response = self.tokenizer.decode(outputs[0][inputs['input_ids'].shape[1]:], skip_special_tokens=True) | |
| # Clean up any artifacts from the model output | |
| response = response.replace('<|eot_id|>', '').replace('ocausticassist', '').strip() | |
| return response | |
| except Exception as e: | |
| logger.error(f"Error generating response: {e}") | |
| return f"Error: {str(e)}" | |
| def _format_prompt_for_fine_tuned(self, query: str, context_text: str, analysis_type: str) -> str: | |
| """Format prompt for fine-tuned model using instruction format""" | |
| # Map analysis type to instruction | |
| instruction_map = { | |
| 'vulnerability_analysis': "Analyze this CVE vulnerability and provide a comprehensive security assessment.", | |
| 'remediation': "Provide comprehensive remediation guidance with MITRE ATT&CK mitigations for this CVE vulnerability.", | |
| 'technical_analysis': "Provide a detailed technical analysis with MITRE ATT&CK context for this CVE vulnerability.", | |
| 'detection': "Create comprehensive detection strategies for this CVE vulnerability.", | |
| 'mitigation': "Develop a comprehensive mitigation strategy for this CVE vulnerability." | |
| } | |
| instruction = instruction_map.get(analysis_type, "Analyze this cybersecurity query and provide a comprehensive response.") | |
| return f"""### Instruction: | |
| {instruction} | |
| ### Input: | |
| CVE Information: | |
| {context_text} | |
| Question: {query} | |
| ### Response: | |
| """ | |
| def _format_prompt_for_base_model(self, query: str, context_text: str, analysis_type: str) -> str: | |
| """Format prompt for base model using system prompt format""" | |
| # Get system prompt | |
| system_prompt = self.system_prompts.get(analysis_type, self.system_prompts['vulnerability_analysis']) | |
| # Build full prompt for Llama 3 | |
| return f"""<|begin_of_text|><|start_header_id|>system<|end_header_id|> | |
| {system_prompt}<|eot_id|><|start_header_id|>user<|end_header_id|> | |
| CVE Information: | |
| {context_text} | |
| Question: {query}<|eot_id|><|start_header_id|>assistant<|end_header_id|> | |
| """ | |
| def _build_context_text(self, context: List[Dict[str, Any]]) -> str: | |
| """Build context text from CVE data""" | |
| if not context: | |
| return "No CVE data provided." | |
| context_parts = [] | |
| for item in context: | |
| if isinstance(item, dict): | |
| if 'cve_id' in item: | |
| context_parts.append(f"CVE ID: {item['cve_id']}") | |
| if 'description' in item: | |
| context_parts.append(f"Description: {item['description']}") | |
| if 'cvss_v3' in item and 'base_score' in item['cvss_v3']: | |
| context_parts.append(f"CVSS Score: {item['cvss_v3']['base_score']}") | |
| if 'products' in item: | |
| products = ", ".join(item['products'][:5]) # Limit to 5 products | |
| context_parts.append(f"Affected Products: {products}") | |
| return "\n".join(context_parts) | |
| def analyze_cve(self, cve_id: str, cve_data: Dict[str, Any]) -> str: | |
| """Analyze a specific CVE""" | |
| context = [cve_data] | |
| return self.generate_response(f"Analyze CVE {cve_id}", context, 'vulnerability_analysis') | |
| def get_remediation_plan(self, cve_id: str, cve_data: Dict[str, Any]) -> str: | |
| """Get remediation plan for a CVE""" | |
| context = [cve_data] | |
| return self.generate_response(f"Provide remediation plan for CVE {cve_id}", context, 'remediation') | |
| def analyze_product_security(self, product_name: str, cve_list: List[Dict[str, Any]]) -> str: | |
| """Analyze security for a specific product""" | |
| context = cve_list[:5] # Limit to top 5 CVEs | |
| return self.generate_response(f"Analyze security for {product_name}", context, 'product_analysis') | |
| def main(): | |
| """Main function to test the inference engine""" | |
| import argparse | |
| parser = argparse.ArgumentParser(description="CVE LLM Inference Engine") | |
| parser.add_argument("--use_fine_tuned", action="store_true", | |
| help="Use fine-tuned model instead of base model") | |
| parser.add_argument("--fine_tuned_path", default="models/fine_tuned_cve_production", | |
| help="Path to fine-tuned model") | |
| parser.add_argument("--query", default="Analyze CVE-2021-44228 Log4j vulnerability", | |
| help="Test query to run") | |
| args = parser.parse_args() | |
| try: | |
| # Initialize inference engine | |
| engine = HFCVEInferenceEngine( | |
| use_fine_tuned=args.use_fine_tuned, | |
| fine_tuned_path=args.fine_tuned_path | |
| ) | |
| # Test with sample CVE data | |
| sample_cve = { | |
| 'cve_id': 'CVE-2021-44228', | |
| 'description': 'Apache Log4j2 2.0-beta9 through 2.14.1 JNDI features used in configuration, log messages, and parameters do not protect against attacker controlled LDAP and other JNDI related endpoints.', | |
| 'cvss_v3': {'base_score': 10.0, 'base_severity': 'CRITICAL'}, | |
| 'products': ['Apache Log4j2'] | |
| } | |
| # Test different analysis types | |
| print("\n" + "="*60) | |
| print("TESTING CVE ANALYSIS") | |
| print("="*60) | |
| # Vulnerability analysis | |
| print("\n1. VULNERABILITY ANALYSIS:") | |
| print("-" * 40) | |
| response = engine.analyze_cve('CVE-2021-44228', sample_cve) | |
| print(response) | |
| # Remediation plan | |
| print("\n2. REMEDIATION PLAN:") | |
| print("-" * 40) | |
| response = engine.get_remediation_plan('CVE-2021-44228', sample_cve) | |
| print(response) | |
| # Custom query | |
| print("\n3. CUSTOM QUERY:") | |
| print("-" * 40) | |
| response = engine.generate_response(args.query, [sample_cve], 'vulnerability_analysis') | |
| print(response) | |
| print(f"\n✅ Inference engine test completed successfully!") | |
| print(f"Model type: {'Fine-tuned' if args.use_fine_tuned else 'Base'}") | |
| except Exception as e: | |
| logger.error(f"❌ Inference engine test failed: {e}") | |
| raise | |
| if __name__ == "__main__": | |
| main() |