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Bug Hunting Tactics

Harsh Bothra
November 28, 2020

Bug Hunting Tactics

Bug Hunting Tactics talk at UPES Dehradun with Cyber Sentinel Student Chapter. This talk covers various aspects of Bug Bounty, Approach for Manual Pentesting, Threat Mapping, Recon, Burp Suite, and Various Server-Side, Client-Side, and logical issues.

Harsh Bothra

November 28, 2020

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  1. B U G H U N T I N G

    T A C T I C S B Y – H A R S H B O T H R A
  2. $(whoami) Cobalt Core Pentester Synack Red Teamer Security Analyst @

    Detox Technologies Bugcrowd TOP 150 (All-Time) & MVP 2020 Q1-Q2 Author – 2 Hacking Books Infosec Blogger | International Speaker Author @Project Bheem Author @Project Hanu Learner @harshbothra_
  3. Agenda Bug Hunting 101 Bug Hunting Methodologies Application Testing Methodology

    Recon Tactics Burp Suite Hacks Approaches for Client-Side Issues Approaches for Server-Side Issues Approaches for Logical & Access Control Issues @harshbothra_
  4. Bug Hunting 101 For those who are not familiar with

    Bug Bounties: • White Hat approach towards Hacking • Help Organizations in securing their Assets • In Return, get Rewards. • Rewards maybe from a Simple “Thanks” to $$$$$ • Legal profession worldwide • Get good reputation and status • Multiple Platforms to Get Started • Big, Lovely Community • Lots of Support Material Available @harshbothra_
  5. Bug Hunting 101 Platforms • HackerOne • Intigriti • Bugcrowd

    • Synack • YesWeHack • HackenProof • Cesppa • Private Programs • Company Managed Programs (Google, Facebook, Apple, Microsoft, etc.) @harshbothra_
  6. Bug Hunting Methodologies Rule – 1: Don’t limit yourself to

    what you have learnt through tutorials and labs. Real life scenarios are totally different most of the time Rule – 2: Create your own checklist. Make a detailed checklist for every possible test cases that you can perform, and you know. Rule – 3: Keep a track record of everything you test. Often you may return to a program later someday or maybe your payload execute later. @harshbothra_
  7. Bug Hunting Methodologies Rule – 4: Track CVEs & Public

    Exploit Releases. It will help you a lot specially in Network Pentesting. Rule – 5: Be Lazy & Automate Stuff. Automate repetitive tasks, write small scripts that do your job while you focus on manual approach. Rule – 6: Say no to Automated Vulnerability Scanners. They miss a lot of security issues and are not reliable. They are a helping hand not a replacement. Rule – 7: Always be active to learn, apply & Experiment. Spend time on your target and you will see results eventually. @harshbothra_
  8. Application Testing Methodology Learn Learn where you lack and hit

    back Hard Document Document what you have Observed Perform Perform Application Specific Attacks Perform Perform Manual Pentest Perform Perform Scope Based Recon Prepare Prepare a Potential Threat Map Understand Understand Application’s Business Logic Navigate Navigate Application as an End User Define Define Target Scope @harshbothra_
  9. Potential Threat Mapping Navigate Application Thoroughly List All Components &

    Functionalities Prepare Theoretical Attack Scenarios for each Functionality Create possible C.I.A. & C.R.U.D. based Impact Scenarios Export Potential Test Cases in a Check List format Verify all these test cases while you perform Assessment @harshbothra_
  10. Manual Testing Approach • Keep Vulnerability Standards such as OWASP

    TOP 10, OWASP ASVS & SANS TOP Risks in mind while performing pentest • Under the application workflows • Figure out various possible workflows of the same features • Try to break the application flow – This is where Business Logics exists • Understand what technologies are being used by the application • Perform technology specific attacks • Try to find out bypasses for evading filters • Try to perform testing for every single vulnerabilities • Do not rely upon Automated Scanner Tools • Learn, Research & Hack Again @harshbothra_
  11. Scope Based Recon • Scope Based Recon is a simply

    methodology to divide How to Perform when a specific set of Scope is Provided. • Scopes are divided into three categories: • Small Scope • Medium Scope • Large Scope • Why Scope Based Recon? • Saves a lot of time • You know what exactly to look for • You can easily automate your recon workflow • Less-chance to submit Out-of-Scope Issues • Just like other security methodologies enables you perform a better Recon @harshbothra_
  12. Burp Suite Hacks • Advance Scope Controls • Important Extensions

    • Testing Access Control Issues • Fuzzing with Burp Suite • Introduction to Burp Macros • Other Interesting Options @harshbothra_
  13. A P P R O A C H E S

    F O R S E R V E R - S I D E I S S U E S @harshbothra_
  14. A P P R O A C H E S

    F O R C L I E N T - S I D E I S S U E S @harshbothra_
  15. A P P R O A C H E S

    F O R B U S I N E S S L O G I C I S S U E S @harshbothra_
  16. You can Bombard with Questions if any! @harshbothra_

  17. Get in Touch at @harshbothra_ Website – https://harshbothra.tech Twitter -

    @harshbothra_ Instagram - @harshbothra_ Medium - hbothra22.medium.com LinkedIn - @harshbothra SpeakerDeck - /harshbothra Email – [email protected]
  18. T H A N K S …