Pentesting Tools

OneScan : A Comprehensive Tool For Recursive Directory Scanning

OneScan is an innovative Burp Suite plugin designed to enhance vulnerability detection in deeply nested directories of web applications.

Initially conceptualized to identify hidden Swagger-API documentation, OneScan has evolved into a versatile tool capable of uncovering sensitive information leaks, unauthorized access points, and privilege escalation vulnerabilities.

Core Features And Functionality

OneScan operates by recursively scanning directories, leveraging payload dictionaries to probe for hidden endpoints.

For example, given a target URL https://www.example.com/a/b/c/xyz.js, OneScan systematically scans paths like /api-docs or /{{domain.name}}.zip across all directory levels. This recursive approach ensures comprehensive coverage of potential vulnerabilities.

Key functionalities include:

  • Dynamic Payloads: Supports a variety of dynamic variables (e.g., {{host}}, {{domain}}, {{timestamp}}) to adapt scans based on the target’s structure.
  • Active and Passive Scanning: Users can initiate scans directly or passively analyze intercepted traffic.
  • Fingerprinting: Version 1.0.0 introduces a fingerprinting module to identify software and hardware characteristics, aiding in vulnerability assessments.
  • Data Visualization: A data board provides insights into scan results, including JSON field extraction and directory enumeration.

Installing OneScan in Burp Suite involves navigating to the “Extender” tab, adding the plugin’s JAR file, and configuring dependencies like the HaE plugin for enhanced logging and data highlighting.

Configuration files are stored in platform-specific directories (e.g., ~/.config/OneScan/ for Linux).

Users can customize:

  • Payload Dictionaries: Define specific paths or patterns for recursive scanning.
  • Request Settings: Adjust parameters like QPS (queries per second), retry attempts, and request headers.
  • Host Management: Configure blacklists or whitelists to refine scan targets.

OneScan’s auxiliary panel extracts JSON fields from requests and responses, while its filtering system allows users to set temporary or permanent rules for data analysis.

The plugin also supports integration with external tools like HaE for sensitive data highlighting.

OneScan is ideal for:

  • Identifying undocumented API endpoints.
  • Detecting sensitive file disclosures (e.g., ZIP archives).
  • Testing access controls on hidden resources.

With its robust features and ease of use, OneScan empowers security professionals to uncover vulnerabilities in complex directory structures efficiently.

Varshini

Varshini is a Cyber Security expert in Threat Analysis, Vulnerability Assessment, and Research. Passionate about staying ahead of emerging Threats and Technologies.

Recent Posts

WhatsMyName App – Find Anyone Across 640+ Platforms

Overview WhatsMyName is a free, community-driven OSINT tool designed to identify where a username exists…

2 weeks ago

Analyzing Directory Size Linux Tools Explained

Managing disk usage is a crucial task for Linux users and administrators alike. Understanding which…

2 weeks ago

Understanding Disk Usage with du Command

Efficient disk space management is vital in Linux, especially for system administrators who manage servers…

2 weeks ago

How to Check Directory Size in Linux

Knowing how to check directory sizes in Linux is essential for managing disk space and…

2 weeks ago

Essential Commands for Linux User Listing

Managing user accounts is a core responsibility for any Linux administrator. Whether you’re securing a…

2 weeks ago

Command-Line Techniques for Listing Linux Users

Linux offers powerful command-line tools for system administrators to view and manage user accounts. Knowing…

2 weeks ago