DEVARAJ GOVINDHAN’s Post

🎉 Just leveled up my cybersecurity skills! 💪 I'm excited to share that I've successfully completed the SQL module on Hack The Box! 🖥️ This challenging course pushed me to deepen my understanding of database vulnerabilities and SQL injection techniques. Key takeaways: Mastered advanced SQL injection methods Learned to identify and exploit database weaknesses Gained hands-on experience with real-world scenarios Constantly improving my skills to stay ahead in the ever-evolving world of cybersecurity. Ready to tackle the next challenge! 🚀 #CybersecuritySkills #HackTheBox #SQLInjection #ContinuousLearning #InfoSec #EthicalHacking

🎉 Just completed the "Sequel" Capture the Flag lab on Hack The Box! 🎉 I enjoyed going through vulnerability assessment, database exploitation, and reconnaissance. The lab highlighted critical flaws like: 🔍 Vulnerability Assessment 🗄️ Database Security 💻 MySQL & SQL 🔍 Reconnaissance Techniques 🔑 Exploiting Weak Credentials It was an excellent opportunity to dive deep into database vulnerabilities and reinforce the importance of securing sensitive information. A big shoutout to the Hack The Box community for providing such a valuable learning platform. Onward and upward! 🚀 #CyberSecurity #CaptureTheFlag #HackTheBox #DatabaseSecurity #MySQL #SQLInjection #VulnerabilityAssessment #InfoSec

🚀 Best Practices for Writing a Dockerfile 🐳 When building Docker images, following best practices ensures efficiency, security, and scalability.  Here's a guide to crafting an optimized Dockerfile: 1. Choose a Minimal Base Image. Start with a lightweight base image to reduce the size of your Docker image and minimize vulnerabilities. 2. Use Multi-Stage Builds for Smaller Images. Multi-stage builds help reduce image size by separating the build environment from the production environment. 3. Leverage ".dockerignore" Avoid copying unnecessary files to your image. Create a ".dockerignore" file to exclude files like logs, local configs, and node_modules. 4. Minimize Layers Each RUN, COPY, and ADD creates a new layer. Use && to combine commands and minimize the number of layers. Example: # Combine multiple commands into one layer RUN apt-get update && apt-get install -y \ curl \ vim \ && rm -rf /var/lib/apt/lists/* 5. Set a WORKDIR Always set a working directory instead of using absolute paths throughout the Dockerfile. 6. Use Non-Root User For better security, avoid running the container as the root user. 7. Specify Explicit Version Tags Always pin the versions of your base image and dependencies to prevent breaking changes. Example: FROM node:16-alpine 8. Clean Up Temporary Files Clean up unnecessary files after installation to keep the image small. 9. Document Instructions Add comments to explain why certain commands are used, making the Dockerfile easier to understand. #Dockerfile #BestPractices #Docker

New publication. :) Completing the "Publisher" CTF Room: A Journey in Enumeration and Exploitation Excited to share my recent experience completing the "Publisher" CTF machine, a simulated environment that truly tested my enumeration and exploitation skills. Here's a brief overview of the journey: Enumeration and Discovery The adventure began with thorough enumeration techniques, including directory fuzzing and version identification. This methodical approach was essential in uncovering the hidden facets of the system's architecture and the services it was hosting. Uncovering a Vulnerability Through persistent exploration, I discovered a critical vulnerability that allowed for Remote Code Execution (RCE). This breakthrough was a pivotal moment, showcasing the importance of patience and precision in cybersecurity practices. Challenges in Privilege Escalation The initial attempts to escalate privileges were met with significant hurdles. The system's security measures restricted access to crucial system files and directories, presenting a formidable challenge. However, this only fueled my determination to delve deeper into the system's security profile. The Breakthrough Persistence paid off as I uncovered a loophole that facilitated the execution of an unconfined bash shell. This discovery was the key to achieving privilege escalation, culminating in the successful completion of the CTF room. Key Takeaways Patience and Precision: Detailed enumeration and version identification are crucial. Persistence: Overcoming restricted access requires a deep dive into the system's security measures. Exploitative Ingenuity: Finding and leveraging loopholes is essential for successful exploitation and privilege escalation. Completing the "Publisher" CTF room was an exhilarating experience that reinforced the significance of meticulous enumeration and creative exploitation techniques in cybersecurity. Excited to tackle more challenges and continue honing my skills in this ever-evolving field! Feel free to connect if you’re interested in discussing cybersecurity strategies or need advice on tackling CTF challenges. 🚀🔐 #Cybersecurity #CTF #Enumeration #Exploitation #PrivilegeEscalation #EthicalHacking

Here’s an enhanced version of your LinkedIn post with emojis, highlighted skills, and hashtags: 🔓 Pwned! 🎉 Just completed a challenging box from Hack The Box! 🖥️💻 This required a deep understanding of specific public exploits and leveraging them effectively to achieve a successful attack. 💪 Key skills involved: 🔍 Exploit Analysis: Identifying and adapting public exploits for the target environment. 🔧 Post-Exploitation: Establishing persistence even in unstable conditions. 🚀 Persistence Techniques: Maintaining access and evading detection. It was a great learning experience, honing both my technical knowledge and problem-solving skills. Excited to keep pushing forward and taking on more challenges! 🚀💡 #HackTheBox #CyberSecurity #ExploitDevelopment #RedTeam #EthicalHacking #Persistence #Infosec #PostExploitation #CTF #LearningEveryday

Let’s rethink hardcoded secrets. Check out this article on how to use Snyk and Doppler together for a better workflow. https://lnkd.in/dG5deiKP

🔏 Sequel has been Pwned! Hack The Box . Sequel is the second machine from Tier 1 in the Starting Point Serie. The tool used on it is the #Database #MySQL. The #database is the organization and storage of information about a specific #domain. More simply, it is the grouping of #data that deals with the same subject and must be stored for #security or future conference. It is common for #companies to have various #information that needs to be organized and made available within the business to be consulted later by the team and #management. Therefore, having a database management system to manipulate the information and make the company's routine much more straightforward is interesting. #cybersecurity #database #mysql #hackthebox #ethicalhacking #learning

🎉 Completed Writeup on Hack The Box! 🎉 Excited to share my journey through the Writeup machine, where I tackled multiple layers of vulnerabilities to achieve root access: 🔍 In-depth Scanning and Enumeration Began with Nmap to identify open ports and services, gathering insights for potential entry points. 🕵️ 💥 SQL Injection Exploitation Exploited cms-made-simple with a SQL injection vulnerability (CVE-2019-9053), gaining access to sensitive information and initial system foothold. 🚀 ⚙️ Privilege Escalation via Path Hijacking Found a background process running as root with every SSH login. By exploiting path hijacking on this process, I elevated privileges to root, fully compromising the system! 🏆 writeup :--> https://lnkd.in/gfbrEK5M #CyberSecurity #HackTheBox #Writeup #SQLInjection #PrivilegeEscalation #PathHijacking #CTF #EthicalHacking #InfoSec #PenTesting #CaptureTheFlag #HackerSkills #RootAccess

🚩 Capture The Flag: Overpass CTF 🏴☠️ Just finished another exciting challenge on TryHackMe! This time, it was all about Overpass, where multiple paths led to the ultimate goal—root access. 🕵️♂️🔐 Want to dive into the details? Check out my write-up! https://lnkd.in/dw2Nvm8N Key Takeaways: 🔍 Mastered nmap for scanning open ports and detecting versions 📜 Used searchsploit to uncover vulnerabilities 🍪 Explored browser tools to create and modify cookies 🌐 Ran nikto to analyze the target web application 🔓 Cracked password-protected private keys with john 🚀 Employed linepeas.sh to hunt for local privilege escalation 🛠️ Tweaked the hosts file for custom domain mapping 🕸️ Set up a local Python web server 🔁 Crafted a custom bash reverse shell for remote access #TryHackMe #Overpass #CTF #CaptureTheFlag #EthicalHacking #LearningByDoing #Cybersecurity

After completing this module I gained valuable insights into SQL injection vulnerabilities and their exploitation. This module provided a hands-on experience with a vulnerable web application, allowing me to practice identifying and manipulating SQL queries through various techniques. I learned how to effectively use tools like Nmap for reconnaissance to discover open ports and services, which laid the groundwork for further exploration. The process of crafting SQL injection payloads taught me the importance of understanding how databases interpret queries, enabling me to bypass authentication and retrieve sensitive information. Overall, this module not only enhanced my technical skills but also reinforced critical problem-solving strategies, highlighting the significance of persistence and creativity in tackling cybersecurity challenges. #HappyHacking!