🥒 Can you exploit this pickle to gain remote access?

Welcome to Corporate Backup Deserializer! This challenge focuses on a critical vulnerability commonly found in enterprise backup and configuration management systems. You'll encounter SecureCorp's Backup Management Portal, a realistic corporate application that uses Python pickle serialization for disaster recovery and system migration features. Your mission is to exploit the unsafe deserialization in the configuration import functionality to achieve remote code execution and capture the flag.

• Understand Python pickle deserialization vulnerabilities in enterprise backup systems
• Learn to exploit disaster recovery features that use unsafe serialization
• Master techniques for crafting malicious backup configuration payloads
• Practice identifying and exploiting serialization vulnerabilities in corporate environments

You are presented with SecureCorp's Backup Management Portal, a corporate application used by IT administrators to manage backup configurations across the enterprise. The system includes a disaster recovery feature that allows system administrators to export and import backup configurations using Python's pickle module for serialization. The vulnerability lies in the configuration import functionality, which deserializes user-provided data without proper validation, creating a realistic attack vector found in many enterprise backup systems.

Enterprise backup systems often implement configuration export/import features for disaster recovery and system migration purposes. When these systems use Python's pickle module to serialize complex configuration objects, they create a significant security risk. Pickle can execute arbitrary code during deserialization, and when backup administrators import "trusted" configuration data from external sources, attackers can achieve remote code execution. This scenario represents a realistic vulnerability pattern found in corporate backup, configuration management, and disaster recovery systems.