CVE-2025-31248 macOS路径解析漏洞导致本地应用敏感数据访问

# CVE-2025-31248 PoC - macOS Path Traversal # Note: This is a conceptual PoC for educational purposes only import Foundation // Vulnerable path handling pattern func vulnerablePathAccess(basePath: String, userInput: String) -> Data? { // VULNERABLE: Direct concatenation without validation let fullPath = basePath + "/" + userInput // Attempt to read file at constructed path do { let data = try Data(contentsOf: URL(fileURLWithPath: fullPath)) return data // Could return sensitive data } catch { return nil } } // Example attack vector: // userInput = "../../../../Library/Application Support/com.apple.idle/secret.dat" // This could bypass intended directory restrictions // Safe implementation (patched version) func safePathAccess(basePath: String, userInput: String) -> Data? { // SAFE: Validate and normalize path let normalizedInput = (basePath as NSString).standardizingPath let fullPath = (basePath as NSString).appendingPathComponent(userInput) let fullNormalized = (fullPath as NSString).standardizingPath // Check if resolved path is within allowed directory guard fullNormalized.hasPrefix(normalizedInput) else { return nil // Path traversal detected } do { return try Data(contentsOf: URL(fileURLWithPath: fullNormalized)) } catch { return nil } } print("CVE-2025-31248: macOS Path Parsing Vulnerability") print("Affected: macOS Sequoia < 15.5, Sonoma < 14.7.3, Ventura < 13.7.3")