diff --git a/docs/audit/outline.md b/docs/audit/outline.md new file mode 100644 index 0000000..81e6232 --- /dev/null +++ b/docs/audit/outline.md @@ -0,0 +1,514 @@ +""" +Security Audit Framework for JNexus + +This module provides a comprehensive framework for conducting third-party security audits +of the JNexus application, which handles sensitive credentials and performs destructive operations. +The framework supports multiple auditor types, generates detailed reports, and tracks vulnerabilities +throughout the audit lifecycle. +""" + +from __future__ import annotations + +import enum +import logging +import re +from dataclasses import dataclass, field +from datetime import datetime, timedelta +from typing import Dict, List, Optional, Sequence, Tuple, Union +from uuid import UUID, uuid4 + +# Configure module logger +logger = logging.getLogger(__name__) + +# Constants +MAX_SCORE: float = 100.0 +MIN_SCORE: float = 0.0 +MAX_CVSS_SCORE: float = 10.0 +MIN_CVSS_SCORE: float = 0.0 +MAX_DESCRIPTION_LENGTH: int = 5000 +MAX_NAME_LENGTH: int = 200 +MIN_DURATION_DAYS: int = 1 +MAX_DURATION_DAYS: int = 365 + + +class SecurityGrade(enum.Enum): + """Enumeration of possible security grades with associated score ranges.""" + + A_PLUS = "A+" + A = "A" + B = "B" + C = "C" + D = "D" + F = "F" + + @classmethod + def from_score(cls, score: float) -> SecurityGrade: + """ + Determine security grade from numeric score. + + Args: + score: Numeric score between 0 and 100 + + Returns: + Corresponding SecurityGrade + + Raises: + ValueError: If score is outside valid range + """ + if not MIN_SCORE <= score <= MAX_SCORE: + raise ValueError(f"Score must be between {MIN_SCORE} and {MAX_SCORE}, got {score}") + + if score >= 99: + return cls.A_PLUS + elif score >= 90: + return cls.A + elif score >= 80: + return cls.B + elif score >= 70: + return cls.C + elif score >= 60: + return cls.D + else: + return cls.F + + +class SeverityLevel(enum.Enum): + """Enumeration of vulnerability severity levels with CVSS score ranges.""" + + CRITICAL = "Critical" + HIGH = "High" + MEDIUM = "Medium" + LOW = "Low" + INFORMATIONAL = "Informational" + + @classmethod + def from_cvss_score(cls, cvss_score: float) -> SeverityLevel: + """ + Determine severity level from CVSS score. + + Args: + cvss_score: CVSS score between 0 and 10 + + Returns: + Corresponding SeverityLevel + + Raises: + ValueError: If CVSS score is outside valid range + """ + if not MIN_CVSS_SCORE <= cvss_score <= MAX_CVSS_SCORE: + raise ValueError(f"CVSS score must be between {MIN_CVSS_SCORE} and {MAX_CVSS_SCORE}, got {cvss_score}") + + if cvss_score >= 9.0: + return cls.CRITICAL + elif cvss_score >= 7.0: + return cls.HIGH + elif cvss_score >= 4.0: + return cls.MEDIUM + elif cvss_score >= 0.1: + return cls.LOW + else: + return cls.INFORMATIONAL + + +class AuditPhase(enum.Enum): + """Enumeration of audit phases in chronological order.""" + + PRE_AUDIT_PREPARATION = "Pre-Audit Preparation" + STATIC_ANALYSIS = "Static Analysis" + DYNAMIC_TESTING = "Dynamic Testing" + REPORT_GENERATION = "Report Generation" + REMEDIATION = "Remediation" + RETESTING = "Retesting" + FINAL_REPORT = "Final Report" + + @property + def order(self) -> int: + """Get the chronological order of this phase.""" + phase_order = { + AuditPhase.PRE_AUDIT_PREPARATION: 0, + AuditPhase.STATIC_ANALYSIS: 1, + AuditPhase.DYNAMIC_TESTING: 2, + AuditPhase.REPORT_GENERATION: 3, + AuditPhase.REMEDIATION: 4, + AuditPhase.RETESTING: 5, + AuditPhase.FINAL_REPORT: 6 + } + return phase_order[self] + + +class AuditorType(enum.Enum): + """Enumeration of auditor types with associated cost estimates.""" + + OWASP = "OWASP Security Audit Project" + PROFESSIONAL_FIRM = "Professional Security Firm" + BUG_BOUNTY = "Bug Bounty Program" + + @property + def cost_estimate(self) -> str: + """Get cost estimate for this auditor type.""" + cost_estimates = { + AuditorType.OWASP: "Free/Low-cost", + AuditorType.PROFESSIONAL_FIRM: "$15,000 - $50,000", + AuditorType.BUG_BOUNTY: "Variable (pay per finding)" + } + return cost_estimates[self] + + +@dataclass(frozen=True) +class SecurityScore: + """ + Immutable data class representing a security score. + + Attributes: + grade: Security grade (A+, A, B, etc.) + score: Numeric score (0-100) + timestamp: When the score was calculated + """ + + grade: SecurityGrade + score: float + timestamp: datetime = field(default_factory=datetime.utcnow) + + def __post_init__(self) -> None: + """Validate score range after initialization.""" + if not MIN_SCORE <= self.score <= MAX_SCORE: + raise ValueError(f"Score must be between {MIN_SCORE} and {MAX_SCORE}, got {self.score}") + logger.debug(f"SecurityScore created: grade={self.grade.value}, score={self.score}") + + def to_dict(self) -> Dict[str, Union[str, float, str]]: + """ + Convert to dictionary representation. + + Returns: + Dictionary with grade, score, and timestamp + """ + return { + "grade": self.grade.value, + "score": self.score, + "timestamp": self.timestamp.isoformat() + } + + @classmethod + def from_dict(cls, data: Dict[str, Union[str, float]]) -> SecurityScore: + """ + Create SecurityScore from dictionary. + + Args: + data: Dictionary with grade, score, and optional timestamp + + Returns: + New SecurityScore instance + + Raises: + ValueError: If required fields are missing or invalid + """ + try: + grade = SecurityGrade(data["grade"]) + score = float(data["score"]) + timestamp = datetime.fromisoformat(data.get("timestamp", datetime.utcnow().isoformat())) + return cls(grade=grade, score=score, timestamp=timestamp) + except (KeyError, ValueError, TypeError) as e: + logger.error(f"Failed to create SecurityScore from dict: {e}") + raise ValueError(f"Invalid SecurityScore data: {e}") + + +@dataclass(frozen=True) +class AuditScope: + """ + Immutable data class defining the scope of a security audit. + + Attributes: + credential_security: Whether to audit credential security + input_validation: Whether to audit input validation + destructive_operations: Whether to audit destructive operations + network_security: Whether to audit network security + authentication: Whether to audit authentication/authorization + data_protection: Whether to audit data protection + dependency_security: Whether to audit dependency security + """ + + credential_security: bool = True + input_validation: bool = True + destructive_operations: bool = True + network_security: bool = True + authentication: bool = True + data_protection: bool = True + dependency_security: bool = True + + def __post_init__(self) -> None: + """Validate that at least one scope area is selected.""" + if not any([self.credential_security, self.input_validation, self.destructive_operations, + self.network_security, self.authentication, self.data_protection, + self.dependency_security]): + raise ValueError("At least one audit scope area must be selected") + logger.debug(f"AuditScope created with {len(self.to_list())} active areas") + + def to_list(self) -> List[str]: + """ + Convert scope to list of active audit areas. + + Returns: + List of active audit area names + """ + areas: List[str] = [] + if self.credential_security: + areas.append("Credential Security") + if self.input_validation: + areas.append("Input Validation") + if self.destructive_operations: + areas.append("Destructive Operations") + if self.network_security: + areas.append("Network Security") + if self.authentication: + areas.append("Authentication & Authorization") + if self.data_protection: + areas.append("Data Protection") + if self.dependency_security: + areas.append("Dependency Security") + return areas + + def to_dict(self) -> Dict[str, bool]: + """ + Convert scope to dictionary representation. + + Returns: + Dictionary with scope area names as keys and boolean values + """ + return { + "credential_security": self.credential_security, + "input_validation": self.input_validation, + "destructive_operations": self.destructive_operations, + "network_security": self.network_security, + "authentication": self.authentication, + "data_protection": self.data_protection, + "dependency_security": self.dependency_security + } + + +@dataclass(frozen=True) +class Vulnerability: + """ + Immutable data class representing a discovered vulnerability. + + Attributes: + id: Unique identifier for the vulnerability + severity: Severity level + description: Description of the vulnerability + affected_components: List of affected components + cve_id: Optional CVE identifier + cvss_score: Optional CVSS score + proof_of_concept: Optional proof of concept + remediation: Optional remediation steps + file_path: Optional file path where vulnerability was found + line_number: Optional line number + """ + + id: UUID + severity: SeverityLevel + description: str + affected_components: List[str] + cve_id: Optional[str] = None + cvss_score: Optional[float] = None + proof_of_concept: Optional[str] = None + remediation: Optional[str] = None + file_path: Optional[str] = None + line_number: Optional[int] = None + + def __post_init__(self) -> None: + """Validate vulnerability data after initialization.""" + # Validate description + if not self.description or not self.description.strip(): + raise ValueError("Description cannot be empty") + if len(self.description) > MAX_DESCRIPTION_LENGTH: + raise ValueError(f"Description exceeds maximum length of {MAX_DESCRIPTION_LENGTH}") + + # Validate affected components + if not self.affected_components: + raise ValueError("At least one affected component is required") + for component in self.affected_components: + if not component or not component.strip(): + raise ValueError("Affected component cannot be empty") + + # Validate CVSS score + if self.cvss_score is not None and not MIN_CVSS_SCORE <= self.cvss_score <= MAX_CVSS_SCORE: + raise ValueError(f"CVSS score must be between {MIN_CVSS_SCORE} and {MAX_CVSS_SCORE}, got {self.cvss_score}") + + # Validate CVE ID format if provided + if self.cve_id is not None: + cve_pattern = re.compile(r'^CVE-\d{4}-\d{4,}$') + if not cve_pattern.match(self.cve_id): + raise ValueError(f"Invalid CVE ID format: {self.cve_id}") + + # Validate line number + if self.line_number is not None and self.line_number < 0: + raise ValueError(f"Line number cannot be negative, got {self.line_number}") + + logger.debug(f"Vulnerability created: id={self.id}, severity={self.severity.value}") + + def to_dict(self) -> Dict[str, Union[str, float, int, List[str], None]]: + """ + Convert to dictionary representation. + + Returns: + Dictionary with all vulnerability fields + """ + return { + "id": str(self.id), + "severity": self.severity.value, + "description": self.description, + "affected_components": self.affected_components, + "cve_id": self.cve_id, + "cvss_score": self.cvss_score, + "proof_of_concept": self.proof_of_concept, + "remediation": self.remediation, + "file_path": self.file_path, + "line_number": self.line_number + } + + @classmethod + def from_dict(cls, data: Dict[str, Union[str, float, int, List[str], None]]) -> Vulnerability: + """ + Create Vulnerability from dictionary. + + Args: + data: Dictionary with vulnerability fields + + Returns: + New Vulnerability instance + + Raises: + ValueError: If required fields are missing or invalid + """ + try: + vuln_id = UUID(data["id"]) if isinstance(data.get("id"), str) else uuid4() + severity = SeverityLevel(data["severity"]) + description = str(data["description"]) + affected_components = list(data["affected_components"]) + cve_id = str(data["cve_id"]) if data.get("cve_id") else None + cvss_score = float(data["cvss_score"]) if data.get("cvss_score") is not None else None + proof_of_concept = str(data["proof_of_concept"]) if data.get("proof_of_concept") else None + remediation = str(data["remediation"]) if data.get("remediation") else None + file_path = str(data["file_path"]) if data.get("file_path") else None + line_number = int(data["line_number"]) if data.get("line_number") is not None else None + + return cls( + id=vuln_id, + severity=severity, + description=description, + affected_components=affected_components, + cve_id=cve_id, + cvss_score=cvss_score, + proof_of_concept=proof_of_concept, + remediation=remediation, + file_path=file_path, + line_number=line_number + ) + except (KeyError, ValueError, TypeError) as e: + logger.error(f"Failed to create Vulnerability from dict: {e}") + raise ValueError(f"Invalid Vulnerability data: {e}") + + +@dataclass(frozen=True) +class AuditDeliverable: + """ + Immutable data class representing an audit deliverable. + + Attributes: + name: Name of the deliverable + description: Description of the deliverable + content_type: Type of content (e.g., PDF, JSON, XML) + generated_at: When the deliverable was generated + """ + + name: str + description: str + content_type: str + generated_at: datetime = field(default_factory=datetime.utcnow) + + def __post_init__(self) -> None: + """Validate deliverable data after initialization.""" + if not self.name or not self.name.strip(): + raise ValueError("Deliverable name cannot be empty") + if len(self.name) > MAX_NAME_LENGTH: + raise ValueError(f"Deliverable name exceeds maximum length of {MAX_NAME_LENGTH}") + + if not self.description or not self.description.strip(): + raise ValueError("Deliverable description cannot be empty") + + if not self.content_type or not self.content_type.strip(): + raise ValueError("Content type cannot be empty") + + valid_content_types = {"PDF", "JSON", "XML", "HTML", "CSV", "TXT", "DOCX", "XLSX"} + if self.content_type.upper() not in valid_content_types: + logger.warning(f"Unusual content type: {self.content_type}") + + logger.debug(f"AuditDeliverable created: name={self.name}, type={self.content_type}") + + def to_dict(self) -> Dict[str, Union[str, datetime]]: + """ + Convert to dictionary representation. + + Returns: + Dictionary with deliverable fields + """ + return { + "name": self.name, + "description": self.description, + "content_type": self.content_type, + "generated_at": self.generated_at.isoformat() + } + + +@dataclass(frozen=True) +class AuditTimeline: + """ + Immutable data class representing the audit timeline. + + Attributes: + phase: Current audit phase + duration_days: Duration in days for this phase + activities: List of activities in this phase + start_date: When the phase starts + end_date: When the phase ends + """ + + phase: AuditPhase + duration_days: int + activities: List[str] + start_date: Optional[datetime] = None + end_date: Optional[datetime] = None + + def __post_init__(self) -> None: + """Validate timeline data after initialization.""" + if self.duration_days < MIN_DURATION_DAYS: + raise ValueError(f"Duration must be at least {MIN_DURATION_DAYS} day, got {self.duration_days}") + if self.duration_days > MAX_DURATION_DAYS: + raise ValueError(f"Duration cannot exceed {MAX_DURATION_DAYS} days, got {self.duration_days}") + + if not self.activities: + raise ValueError("At least one activity is required") + for activity in self.activities: + if not activity or not activity.strip(): + raise ValueError("Activity cannot be empty") + + if self.start_date and self.end_date and self.start_date >= self.end_date: + raise ValueError("Start date must be before end date") + + logger.debug(f"AuditTimeline created: phase={self.phase.value}, duration={self.duration_days}d") + + def calculate_end_date(self) -> Optional[datetime]: + """ + Calculate end date based on start date and duration. + + Returns: + Calculated end date or None if start date is not set + """ + if self.start_date is None: + logger.warning("Cannot calculate end date: start date is not set") + return None + + end_date = self.start_date + timedelta(days=self.duration_days) + logger.debug(f"Calculated end date: {end_date.isoformat()}") + return end_date + + def to_dict(self) -> Dict[str, Union[str, \ No newline at end of file diff --git a/docs/audit/report_template.md b/docs/audit/report_template.md new file mode 100644 index 0000000..f86436a --- /dev/null +++ b/docs/audit/report_template.md @@ -0,0 +1,493 @@ +""" +JNexus Security Audit Module + +This module provides comprehensive security audit capabilities for the JNexus system, +including credential security, input validation, destructive operations safeguards, +network security, authentication, data protection, and dependency security analysis. + +Author: JNexus Security Team +Version: 2.0.0 +""" + +import asyncio +import hashlib +import json +import logging +import os +import re +import tempfile +from abc import ABC, abstractmethod +from dataclasses import dataclass, field +from datetime import datetime, timedelta +from enum import Enum, auto +from pathlib import Path +from typing import ( + Any, + Dict, + List, + Optional, + Set, + Tuple, + Union, + final, +) +from urllib.parse import urlparse, urljoin + +import aiohttp +import cryptography +from cryptography.fernet import Fernet +from cryptography.hazmat.primitives.ciphers.aead import AESGCM +from pydantic import BaseModel, Field, validator +from typing_extensions import Protocol, runtime_checkable + +# Configure logging +logger = logging.getLogger(__name__) +logging.basicConfig( + level=logging.INFO, + format='%(asctime)s - %(name)s - %(levelname)s - %(message)s' +) + + +# ============================================================================= +# Enums and Constants +# ============================================================================= + +class SecurityLevel(Enum): + """Security level enumeration for audit classification.""" + CRITICAL = auto() + HIGH = auto() + MEDIUM = auto() + LOW = auto() + INFO = auto() + + +class AuditStatus(Enum): + """Audit status enumeration.""" + PENDING = auto() + IN_PROGRESS = auto() + COMPLETED = auto() + FAILED = auto() + PARTIALLY_COMPLETED = auto() + + +class VulnerabilityType(Enum): + """Types of vulnerabilities that can be detected.""" + CREDENTIAL_EXPOSURE = auto() + INPUT_VALIDATION = auto() + DESTRUCTIVE_OPERATION = auto() + NETWORK_SECURITY = auto() + AUTHENTICATION = auto() + DATA_PROTECTION = auto() + DEPENDENCY_VULNERABILITY = auto() + CONFIGURATION_ISSUE = auto() + + +# Constants +MAX_RETRY_ATTEMPTS: int = 3 +RETRY_BACKOFF_FACTOR: float = 2.0 +DEFAULT_TIMEOUT_SECONDS: int = 30 +MAX_PAYLOAD_SIZE_BYTES: int = 10 * 1024 * 1024 # 10MB +ALLOWED_PROTOCOLS: Set[str] = {'https', 'ssh', 'git'} +BLOCKED_PATHS: Set[str] = {'/etc', '/proc', '/sys', '/dev'} +REPOSITORY_NAME_PATTERN: re.Pattern = re.compile(r'^[a-zA-Z0-9._-]+$') +URL_PATTERN: re.Pattern = re.compile( + r'^https?://[^\s/$.?#].[^\s]*$', re.IGNORECASE +) + + +# ============================================================================= +# Data Models +# ============================================================================= + +@dataclass(frozen=True) +class Vulnerability: + """Immutable vulnerability data class.""" + id: str + type: VulnerabilityType + severity: SecurityLevel + description: str + affected_component: str + remediation: str + discovered_at: datetime = field(default_factory=datetime.utcnow) + cve_id: Optional[str] = None + cvss_score: Optional[float] = None + + def __post_init__(self) -> None: + """Validate vulnerability data after initialization.""" + if self.cvss_score is not None and not (0.0 <= self.cvss_score <= 10.0): + raise ValueError(f"Invalid CVSS score: {self.cvss_score}") + if not self.id or not self.id.strip(): + raise ValueError("Vulnerability ID cannot be empty") + + +class AuditReport(BaseModel): + """Pydantic model for audit report validation.""" + audit_id: str = Field(..., min_length=8, max_length=64) + timestamp: datetime = Field(default_factory=datetime.utcnow) + status: AuditStatus = AuditStatus.PENDING + vulnerabilities: List[Vulnerability] = Field(default_factory=list) + summary: Dict[str, int] = Field(default_factory=dict) + recommendations: List[str] = Field(default_factory=list) + metadata: Dict[str, Any] = Field(default_factory=dict) + + @validator('audit_id') + def validate_audit_id(cls, v: str) -> str: + """Validate audit ID format.""" + if not re.match(r'^AUDIT-\d{8}-[a-f0-9]{8}$', v): + raise ValueError('Invalid audit ID format') + return v + + @validator('summary') + def validate_summary(cls, v: Dict[str, int]) -> Dict[str, int]: + """Validate summary counts match vulnerabilities.""" + if v: + total = sum(v.values()) + if total > 0 and 'total' not in v: + v['total'] = total + return v + + +# ============================================================================= +# Abstract Base Classes and Protocols +# ============================================================================= + +@runtime_checkable +class SecurityAuditor(Protocol): + """Protocol for security auditor implementations.""" + + async def audit(self, target: str) -> AuditReport: + """Perform security audit on target.""" + ... + + +class BaseAuditor(ABC): + """Abstract base class for all auditors.""" + + def __init__(self, config: Optional[Dict[str, Any]] = None) -> None: + """Initialize auditor with optional configuration.""" + self.config = config or {} + self.logger = logging.getLogger(f"{__name__}.{self.__class__.__name__}") + self._validate_config() + + @abstractmethod + async def audit(self, target: str) -> AuditReport: + """Perform security audit on target.""" + ... + + def _validate_config(self) -> None: + """Validate auditor configuration.""" + required_keys = {'timeout', 'retry_attempts'} + missing_keys = required_keys - set(self.config.keys()) + if missing_keys: + self.logger.warning(f"Missing config keys: {missing_keys}") + for key in missing_keys: + self.config[key] = globals().get( + f'DEFAULT_{key.upper()}', + DEFAULT_TIMEOUT_SECONDS if key == 'timeout' else MAX_RETRY_ATTEMPTS + ) + + async def _execute_with_retry( + self, + coro_func: callable, + *args: Any, + **kwargs: Any + ) -> Any: + """Execute async function with retry logic.""" + last_exception = None + for attempt in range(self.config.get('retry_attempts', MAX_RETRY_ATTEMPTS)): + try: + return await coro_func(*args, **kwargs) + except (aiohttp.ClientError, asyncio.TimeoutError) as e: + last_exception = e + wait_time = RETRY_BACKOFF_FACTOR ** attempt + self.logger.warning( + f"Attempt {attempt + 1} failed: {e}. Retrying in {wait_time}s" + ) + await asyncio.sleep(wait_time) + + raise RuntimeError(f"All retry attempts failed: {last_exception}") + + +# ============================================================================= +# Credential Security Auditor +# ============================================================================= + +class CredentialSecurityAuditor(BaseAuditor): + """Auditor for credential security implementation.""" + + def __init__(self, config: Optional[Dict[str, Any]] = None) -> None: + """Initialize credential security auditor.""" + super().__init__(config) + self._encryption_key: Optional[bytes] = None + + async def audit(self, target: str) -> AuditReport: + """Audit credential security implementation.""" + self.logger.info(f"Starting credential security audit for: {target}") + + vulnerabilities: List[Vulnerability] = [] + report = AuditReport( + audit_id=f"AUDIT-{datetime.utcnow().strftime('%Y%m%d')}-{hashlib.sha256(target.encode()).hexdigest()[:8]}", + status=AuditStatus.IN_PROGRESS + ) + + try: + # Check AES-256-GCM implementation + aes_vulns = await self._check_aes_implementation(target) + vulnerabilities.extend(aes_vulns) + + # Check key derivation and storage + key_vulns = await self._check_key_management(target) + vulnerabilities.extend(key_vulns) + + # Check credential storage + storage_vulns = await self._check_credential_storage(target) + vulnerabilities.extend(storage_vulns) + + # Update report + report.vulnerabilities = vulnerabilities + report.status = AuditStatus.COMPLETED + report.summary = self._generate_summary(vulnerabilities) + + except Exception as e: + self.logger.error(f"Credential security audit failed: {e}", exc_info=True) + report.status = AuditStatus.FAILED + report.metadata['error'] = str(e) + + return report + + async def _check_aes_implementation(self, target: str) -> List[Vulnerability]: + """Check AES-256-GCM implementation for vulnerabilities.""" + vulnerabilities: List[Vulnerability] = [] + + try: + # Check if AES-GCM is properly implemented + key = AESGCM.generate_key(bit_length=256) + aesgcm = AESGCM(key) + + # Test encryption/decryption + nonce = os.urandom(12) + plaintext = b"test_data" + ciphertext = aesgcm.encrypt(nonce, plaintext, None) + decrypted = aesgcm.decrypt(nonce, ciphertext, None) + + if decrypted != plaintext: + vulnerabilities.append( + Vulnerability( + id=f"AES-{hashlib.md5(target.encode()).hexdigest()[:8]}", + type=VulnerabilityType.CREDENTIAL_EXPOSURE, + severity=SecurityLevel.CRITICAL, + description="AES-256-GCM encryption/decryption mismatch detected", + affected_component="jencrypt", + remediation="Verify AES-256-GCM implementation and key management" + ) + ) + + # Check for weak key generation + if not self._verify_key_strength(key): + vulnerabilities.append( + Vulnerability( + id=f"KEY-{hashlib.md5(target.encode()).hexdigest()[:8]}", + type=VulnerabilityType.CREDENTIAL_EXPOSURE, + severity=SecurityLevel.HIGH, + description="Weak encryption key detected", + affected_component="key_derivation", + remediation="Use cryptographically secure random key generation" + ) + ) + + except cryptography.exceptions.InvalidTag as e: + self.logger.error(f"AES-GCM authentication failed: {e}") + vulnerabilities.append( + Vulnerability( + id=f"AES-ERR-{hashlib.md5(target.encode()).hexdigest()[:8]}", + type=VulnerabilityType.CREDENTIAL_EXPOSURE, + severity=SecurityLevel.CRITICAL, + description=f"AES-GCM implementation error: {str(e)}", + affected_component="jencrypt", + remediation="Fix AES-GCM implementation and verify authentication tags" + ) + ) + except Exception as e: + self.logger.error(f"AES implementation check failed: {e}", exc_info=True) + vulnerabilities.append( + Vulnerability( + id=f"AES-UNK-{hashlib.md5(target.encode()).hexdigest()[:8]}", + type=VulnerabilityType.CREDENTIAL_EXPOSURE, + severity=SecurityLevel.HIGH, + description=f"Unexpected error in AES implementation: {str(e)}", + affected_component="jencrypt", + remediation="Review and fix AES implementation" + ) + ) + + return vulnerabilities + + async def _check_key_management(self, target: str) -> List[Vulnerability]: + """Check key derivation and storage mechanisms.""" + vulnerabilities: List[Vulnerability] = [] + + try: + # Check for hardcoded keys + key_patterns = [ + r'(?:password|secret|key|token)\s*[:=]\s*["\']([^"\']+)["\']', + r'(?:AES|RSA|EC)_KEY\s*=\s*["\']([^"\']+)["\']', + r'encryption_key\s*=\s*["\']([^"\']+)["\']' + ] + + for pattern in key_patterns: + matches = re.finditer(pattern, target, re.IGNORECASE) + for match in matches: + vulnerabilities.append( + Vulnerability( + id=f"KEY-EXPOSE-{hashlib.md5(match.group(1).encode()).hexdigest()[:8]}", + type=VulnerabilityType.CREDENTIAL_EXPOSURE, + severity=SecurityLevel.CRITICAL, + description=f"Potential hardcoded key detected: {match.group(0)[:50]}...", + affected_component="key_storage", + remediation="Move keys to secure key management system" + ) + ) + + # Check for weak key derivation + if 'PBKDF2' not in target and 'bcrypt' not in target and 'scrypt' not in target: + vulnerabilities.append( + Vulnerability( + id=f"KDF-{hashlib.md5(target.encode()).hexdigest()[:8]}", + type=VulnerabilityType.CREDENTIAL_EXPOSURE, + severity=SecurityLevel.HIGH, + description="No strong key derivation function detected", + affected_component="key_derivation", + remediation="Implement PBKDF2, bcrypt, or scrypt for key derivation" + ) + ) + + except Exception as e: + self.logger.error(f"Key management check failed: {e}", exc_info=True) + vulnerabilities.append( + Vulnerability( + id=f"KEY-MGMT-ERR-{hashlib.md5(target.encode()).hexdigest()[:8]}", + type=VulnerabilityType.CREDENTIAL_EXPOSURE, + severity=SecurityLevel.HIGH, + description=f"Key management check error: {str(e)}", + affected_component="key_management", + remediation="Review key management implementation" + ) + ) + + return vulnerabilities + + async def _check_credential_storage(self, target: str) -> List[Vulnerability]: + """Check credential storage mechanisms.""" + vulnerabilities: List[Vulnerability] = [] + + try: + # Check for plaintext credentials + if 'password' in target.lower() and 'encrypt' not in target.lower(): + vulnerabilities.append( + Vulnerability( + id=f"PLAINTEXT-{hashlib.md5(target.encode()).hexdigest()[:8]}", + type=VulnerabilityType.CREDENTIAL_EXPOSURE, + severity=SecurityLevel.CRITICAL, + description="Potential plaintext credential storage detected", + affected_component="credential_storage", + remediation="Encrypt all stored credentials using AES-256-GCM" + ) + ) + + # Check for secure storage mechanisms + if 'EncryptedSharedPreferences' not in target and 'Keychain' not in target: + vulnerabilities.append( + Vulnerability( + id=f"STORAGE-{hashlib.md5(target.encode()).hexdigest()[:8]}", + type=VulnerabilityType.CREDENTIAL_EXPOSURE, + severity=SecurityLevel.HIGH, + description="No platform-specific secure storage detected", + affected_component="credential_storage", + remediation="Implement EncryptedSharedPreferences (Android) or Keychain (iOS)" + ) + ) + + except Exception as e: + self.logger.error(f"Credential storage check failed: {e}", exc_info=True) + vulnerabilities.append( + Vulnerability( + id=f"STORAGE-ERR-{hashlib.md5(target.encode()).hexdigest()[:8]}", + type=VulnerabilityType.CREDENTIAL_EXPOSURE, + severity=SecurityLevel.MEDIUM, + description=f"Credential storage check error: {str(e)}", + affected_component="credential_storage", + remediation="Review credential storage implementation" + ) + ) + + return vulnerabilities + + def _verify_key_strength(self, key: bytes) -> bool: + """Verify encryption key strength.""" + if len(key) < 32: # 256 bits + return False + + # Check for weak keys (all zeros, all ones, etc.) + if all(b == 0 for b in key) or all(b == 255 for b in key): + return False + + # Check entropy + entropy = 0 + for byte in key: + if byte > 0: + p = byte / 256.0 + entropy -= p * (p.bit_length()) + + return entropy > 0.5 + + def _generate_summary(self, vulnerabilities: List[Vulnerability]) -> Dict[str, int]: + """Generate summary of vulnerabilities by severity.""" + summary: Dict[str, int] = { + 'critical': 0, + 'high': 0, + 'medium': 0, + 'low': 0, + 'info': 0, + 'total': len(vulnerabilities) + } + + for vuln in vulnerabilities: + severity_key = vuln.severity.name.lower() + if severity_key in summary: + summary[severity_key] += 1 + + return summary + + +# ============================================================================= +# Input Validation Auditor +# ============================================================================= + +class InputValidationAuditor(BaseAuditor): + """Auditor for input validation implementation.""" + + async def audit(self, target: str) -> AuditReport: + """Audit input validation implementation.""" + self.logger.info(f"Starting input validation audit for: {target}") + + vulnerabilities: List[Vulnerability] = [] + report = AuditReport( + audit_id=f"AUDIT-{datetime.utcnow().strftime('%Y%m%d')}-{hashlib.sha256(target.encode()).hexdigest()[:8]}", + status=AuditStatus.IN_PROGRESS + ) + + try: + # Check repository name validation + repo_vulns = await self._check_repository_validation(target) + vulnerabilities.extend(repo_vulns) + + # Check URL validation + url_vulns = await self._check_url_validation(target) + vulnerabilities.extend(url_vulns) + + # Check regex patterns + regex_vulns = await self._check_regex_patterns(target) + vulnerabilities.extend(regex_vulns) + + # Check path traversal protection + path_vulns = \ No newline at end of file diff --git a/docs/audit/research_notes.md b/docs/audit/research_notes.md new file mode 100644 index 0000000..b62cd5c --- /dev/null +++ b/docs/audit/research_notes.md @@ -0,0 +1,523 @@ +""" +JNexus Security Audit Module + +This module provides comprehensive security audit capabilities for the JNexus credential +management system. It handles external security audit coordination, vulnerability tracking, +and remediation management with enterprise-grade security controls. + +Copyright (c) 2024 JNexus Project +Licensed under MIT License +""" + +import asyncio +import enum +import hashlib +import hmac +import json +import logging +import os +import re +import secrets +import tempfile +import time +from abc import ABC, abstractmethod +from dataclasses import dataclass, field, asdict +from datetime import datetime, timedelta +from pathlib import Path +from typing import ( + Any, + Dict, + List, + Optional, + Set, + Tuple, + Union, + Final, + Protocol, + runtime_checkable, +) +from urllib.parse import urlparse, urlunparse + +import aiohttp +import cryptography +from cryptography.fernet import Fernet +from cryptography.hazmat.primitives import hashes, constant_time +from cryptography.hazmat.primitives.kdf.pbkdf2 import PBKDF2HMAC +from cryptography.hazmat.primitives.ciphers.aead import AESGCM +from pydantic import BaseModel, Field, validator, SecretStr, HttpUrl +from typing_extensions import Literal + +# Configure module logger +logger = logging.getLogger(__name__) +logger.addHandler(logging.NullHandler()) + + +# ============================================================================= +# Constants and Configuration +# ============================================================================= + +class SecurityConstants: + """Immutable security configuration constants.""" + + # Encryption constants + AES_KEY_SIZE: Final[int] = 32 # 256 bits + AES_NONCE_SIZE: Final[int] = 12 # 96 bits + PBKDF2_ITERATIONS: Final[int] = 600_000 # OWASP 2024 recommendation + PBKDF2_SALT_SIZE: Final[int] = 16 + TOKEN_EXPIRY_HOURS: Final[int] = 24 + + # Rate limiting + MAX_LOGIN_ATTEMPTS: Final[int] = 5 + LOGIN_LOCKOUT_MINUTES: Final[int] = 15 + API_RATE_LIMIT_PER_MINUTE: Final[int] = 100 + + # Input validation + MAX_REPOSITORY_NAME_LENGTH: Final[int] = 100 + MAX_COMPONENT_ID_LENGTH: Final[int] = 64 + ALLOWED_REPOSITORY_CHARS: Final[re.Pattern] = re.compile(r'^[a-zA-Z0-9._-]+$') + ALLOWED_COMPONENT_CHARS: Final[re.Pattern] = re.compile(r'^[a-zA-Z0-9_-]+$') + + # Path traversal prevention + PATH_TRAVERSAL_PATTERN: Final[re.Pattern] = re.compile(r'\.\./|\.\.\\|~') + + # Audit compliance + AUDIT_LOG_RETENTION_DAYS: Final[int] = 365 + MAX_AUDIT_LOG_SIZE_MB: Final[int] = 100 + + +# ============================================================================= +# Enums and Types +# ============================================================================= + +class SeverityLevel(str, enum.Enum): + """Vulnerability severity classification following CVSS 3.1.""" + CRITICAL = "critical" + HIGH = "high" + MEDIUM = "medium" + LOW = "low" + INFORMATIONAL = "informational" + + +class AuditStatus(str, enum.Enum): + """Status of security audit findings.""" + OPEN = "open" + IN_PROGRESS = "in_progress" + FIXED = "fixed" + ACCEPTED = "accepted" + FALSE_POSITIVE = "false_positive" + + +class AuditPhase(str, enum.Enum): + """Phases of the security audit lifecycle.""" + PLANNING = "planning" + IN_PROGRESS = "in_progress" + REPORTING = "reporting" + REMEDIATION = "remediation" + COMPLETED = "completed" + + +class EncryptionAlgorithm(str, enum.Enum): + """Supported encryption algorithms.""" + AES_256_GCM = "aes-256-gcm" + FERNET = "fernet" + + +# ============================================================================= +# Pydantic Models for Data Validation +# ============================================================================= + +class VulnerabilityFinding(BaseModel): + """Represents a single vulnerability finding from security audit.""" + + id: str = Field(default_factory=lambda: f"VULN-{secrets.token_hex(8).upper()}") + title: str = Field(..., min_length=5, max_length=200) + description: str = Field(..., min_length=20, max_length=5000) + severity: SeverityLevel + cvss_score: float = Field(..., ge=0.0, le=10.0) + affected_component: str = Field(..., min_length=1, max_length=100) + affected_file: Optional[str] = Field(None, max_length=500) + affected_line: Optional[int] = Field(None, ge=1) + remediation: str = Field(..., min_length=20, max_length=5000) + proof_of_concept: Optional[str] = Field(None, max_length=10000) + status: AuditStatus = AuditStatus.OPEN + discovered_date: datetime = Field(default_factory=datetime.utcnow) + remediated_date: Optional[datetime] = None + cve_id: Optional[str] = Field(None, pattern=r'^CVE-\d{4}-\d{4,}$') + + @validator('title') + def validate_title(cls, value: str) -> str: + """Sanitize and validate vulnerability title.""" + if not value.strip(): + raise ValueError("Title cannot be empty or whitespace only") + if any(char in value for char in ['<', '>', '&', '"', "'"]): + raise ValueError("Title contains potentially dangerous characters") + return value.strip() + + @validator('cvss_score') + def validate_cvss_score(cls, value: float) -> float: + """Validate CVSS score is within acceptable range.""" + if value < 0.0 or value > 10.0: + raise ValueError("CVSS score must be between 0.0 and 10.0") + return round(value, 1) + + class Config: + """Pydantic model configuration.""" + frozen = True + validate_assignment = True + json_encoders = { + datetime: lambda v: v.isoformat(), + SeverityLevel: lambda v: v.value, + AuditStatus: lambda v: v.value, + } + + +class AuditReport(BaseModel): + """Comprehensive security audit report.""" + + report_id: str = Field(default_factory=lambda: f"REPORT-{secrets.token_hex(12).upper()}") + project_name: str = "JNexus" + project_version: str = Field(..., pattern=r'^\d+\.\d+\.\d+$') + auditor_name: str = Field(..., min_length=2, max_length=200) + audit_date: datetime = Field(default_factory=datetime.utcnow) + audit_phase: AuditPhase = AuditPhase.IN_PROGRESS + findings: List[VulnerabilityFinding] = Field(default_factory=list) + executive_summary: str = Field(default="", max_length=10000) + risk_rating: Optional[SeverityLevel] = None + total_findings: int = 0 + critical_count: int = 0 + high_count: int = 0 + medium_count: int = 0 + low_count: int = 0 + info_count: int = 0 + + @validator('auditor_name') + def validate_auditor_name(cls, value: str) -> str: + """Validate auditor name for security.""" + if not value.replace(' ', '').isalnum(): + raise ValueError("Auditor name must be alphanumeric with spaces only") + return value.strip() + + def calculate_statistics(self) -> None: + """Calculate vulnerability statistics from findings.""" + self.total_findings = len(self.findings) + self.critical_count = sum(1 for f in self.findings if f.severity == SeverityLevel.CRITICAL) + self.high_count = sum(1 for f in self.findings if f.severity == SeverityLevel.HIGH) + self.medium_count = sum(1 for f in self.findings if f.severity == SeverityLevel.MEDIUM) + self.low_count = sum(1 for f in self.findings if f.severity == SeverityLevel.LOW) + self.info_count = sum(1 for f in self.findings if f.severity == SeverityLevel.INFORMATIONAL) + + # Determine overall risk rating + if self.critical_count > 0: + self.risk_rating = SeverityLevel.CRITICAL + elif self.high_count > 0: + self.risk_rating = SeverityLevel.HIGH + elif self.medium_count > 0: + self.risk_rating = SeverityLevel.MEDIUM + elif self.low_count > 0: + self.risk_rating = SeverityLevel.LOW + else: + self.risk_rating = SeverityLevel.INFORMATIONAL + + class Config: + """Pydantic model configuration.""" + frozen = True + + +# ============================================================================= +# Abstract Base Class for Security Auditors +# ============================================================================= + +class SecurityAuditor(ABC): + """Abstract base class for security auditors.""" + + @abstractmethod + async def perform_audit(self, target: str) -> AuditReport: + """Perform a security audit on the given target.""" + pass + + @abstractmethod + async def validate_finding(self, finding: VulnerabilityFinding) -> bool: + """Validate a vulnerability finding.""" + pass + + +# ============================================================================= +# Concrete Security Auditor Implementation +# ============================================================================= + +class JNexusSecurityAuditor(SecurityAuditor): + """Concrete implementation of a security auditor for JNexus.""" + + def __init__(self, auditor_name: str, project_version: str) -> None: + """Initialize the security auditor. + + Args: + auditor_name: Name of the auditor + project_version: Version of the project being audited + """ + self.auditor_name = auditor_name + self.project_version = project_version + self.logger = logging.getLogger(f"{__name__}.{self.__class__.__name__}") + self.logger.info(f"Initialized JNexusSecurityAuditor for {auditor_name}") + + async def perform_audit(self, target: str) -> AuditReport: + """Perform a security audit on the given target. + + Args: + target: The target to audit (e.g., repository URL, file path) + + Returns: + AuditReport containing the audit results + + Raises: + ValueError: If the target is invalid + RuntimeError: If the audit fails + """ + self.logger.info(f"Starting security audit on target: {target}") + + try: + # Validate target + if not self._validate_target(target): + raise ValueError(f"Invalid target: {target}") + + # Create audit report + report = AuditReport( + project_version=self.project_version, + auditor_name=self.auditor_name + ) + + # Perform audit checks + findings = await self._run_audit_checks(target) + report.findings = findings + report.calculate_statistics() + + self.logger.info(f"Audit completed with {len(findings)} findings") + return report + + except Exception as e: + self.logger.error(f"Audit failed: {str(e)}") + raise RuntimeError(f"Security audit failed: {str(e)}") from e + + async def validate_finding(self, finding: VulnerabilityFinding) -> bool: + """Validate a vulnerability finding. + + Args: + finding: The vulnerability finding to validate + + Returns: + True if the finding is valid, False otherwise + + Raises: + ValueError: If the finding is invalid + """ + self.logger.debug(f"Validating finding: {finding.id}") + + try: + # Validate finding fields + if not finding.title or not finding.description: + raise ValueError("Finding must have title and description") + + if finding.cvss_score < 0 or finding.cvss_score > 10: + raise ValueError("Invalid CVSS score") + + # Additional validation logic + if finding.severity == SeverityLevel.CRITICAL and finding.cvss_score < 9.0: + self.logger.warning(f"Critical severity with low CVSS score: {finding.id}") + + return True + + except ValueError as e: + self.logger.error(f"Finding validation failed: {str(e)}") + return False + + def _validate_target(self, target: str) -> bool: + """Validate the audit target. + + Args: + target: The target to validate + + Returns: + True if the target is valid, False otherwise + """ + if not target or not target.strip(): + self.logger.warning("Empty target provided") + return False + + # Check for path traversal + if SecurityConstants.PATH_TRAVERSAL_PATTERN.search(target): + self.logger.warning(f"Path traversal detected in target: {target}") + return False + + # Validate URL if it's a URL + if target.startswith(('http://', 'https://')): + try: + parsed = urlparse(target) + if not parsed.netloc: + return False + except Exception: + return False + + return True + + async def _run_audit_checks(self, target: str) -> List[VulnerabilityFinding]: + """Run all audit checks on the target. + + Args: + target: The target to audit + + Returns: + List of vulnerability findings + """ + findings = [] + + try: + # Run individual checks + findings.extend(await self._check_credential_security(target)) + findings.extend(await self._check_input_validation(target)) + findings.extend(await self._check_destructive_operations(target)) + findings.extend(await self._check_network_security(target)) + findings.extend(await self._check_authentication(target)) + findings.extend(await self._check_data_protection(target)) + findings.extend(await self._check_dependency_security(target)) + + except Exception as e: + self.logger.error(f"Audit checks failed: {str(e)}") + raise + + return findings + + async def _check_credential_security(self, target: str) -> List[VulnerabilityFinding]: + """Check credential security. + + Args: + target: The target to check + + Returns: + List of vulnerability findings related to credential security + """ + findings = [] + + try: + # Check encryption implementation + if not self._verify_encryption_implementation(): + findings.append(VulnerabilityFinding( + title="Weak encryption implementation", + description="The AES-256-GCM encryption implementation may have vulnerabilities", + severity=SeverityLevel.HIGH, + cvss_score=7.5, + affected_component="jencrypt", + remediation="Review and update encryption implementation to follow OWASP guidelines" + )) + + # Check key derivation + if not self._verify_key_derivation(): + findings.append(VulnerabilityFinding( + title="Insecure key derivation", + description="Key derivation function may not meet security requirements", + severity=SeverityLevel.HIGH, + cvss_score=7.0, + affected_component="jencrypt", + remediation="Implement PBKDF2 with recommended iterations" + )) + + except Exception as e: + self.logger.error(f"Credential security check failed: {str(e)}") + + return findings + + async def _check_input_validation(self, target: str) -> List[VulnerabilityFinding]: + """Check input validation. + + Args: + target: The target to check + + Returns: + List of vulnerability findings related to input validation + """ + findings = [] + + try: + # Check repository name validation + if not self._verify_repository_name_validation(): + findings.append(VulnerabilityFinding( + title="Insufficient repository name validation", + description="Repository names may be vulnerable to path traversal attacks", + severity=SeverityLevel.HIGH, + cvss_score=8.0, + affected_component="repository", + remediation="Implement strict input validation for repository names" + )) + + # Check URL validation + if not self._verify_url_validation(): + findings.append(VulnerabilityFinding( + title="Insufficient URL validation", + description="URLs may be vulnerable to SSRF attacks", + severity=SeverityLevel.MEDIUM, + cvss_score=6.5, + affected_component="network", + remediation="Implement strict URL validation and sanitization" + )) + + except Exception as e: + self.logger.error(f"Input validation check failed: {str(e)}") + + return findings + + async def _check_destructive_operations(self, target: str) -> List[VulnerabilityFinding]: + """Check destructive operations. + + Args: + target: The target to check + + Returns: + List of vulnerability findings related to destructive operations + """ + findings = [] + + try: + # Check delete operation safeguards + if not self._verify_delete_safeguards(): + findings.append(VulnerabilityFinding( + title="Insufficient delete operation safeguards", + description="Delete operations may not have adequate protection", + severity=SeverityLevel.CRITICAL, + cvss_score=9.0, + affected_component="operations", + remediation="Implement confirmation prompts and dry-run capabilities" + )) + + except Exception as e: + self.logger.error(f"Destructive operations check failed: {str(e)}") + + return findings + + async def _check_network_security(self, target: str) -> List[VulnerabilityFinding]: + """Check network security. + + Args: + target: The target to check + + Returns: + List of vulnerability findings related to network security + """ + findings = [] + + try: + # Check HTTPS enforcement + if not self._verify_https_enforcement(): + findings.append(VulnerabilityFinding( + title="HTTPS not enforced", + description="Network communications may not be encrypted", + severity=SeverityLevel.HIGH, + cvss_score=7.5, + affected_component="network", + remediation="Enforce HTTPS for all network communications" + )) + + except Exception as e: + self.logger.error(f"Network security check failed: {str(e)}") + + return findings + + async def _check_authentication \ No newline at end of file