My Blog
Vulnerability Report: Unauthenticated RTMP Push & Public Playback on Kuaishou (快手短视频)
A critical vulnerability has been discovered in the Kuaishou streaming infrastructure that allows unauthenticated live streaming via RTMP to arbitrary stream keys. Once pushed, these streams are publi...
CTF@CIT 2025 Write-Up: Blank Image (Steganography)
In the CTF@CIT 2025 cybersecurity competition, I participated in the Steganography category and came across an interesting challenge named "Blank Image". Despite appearing as a blank image, a clue in ...
CTF@CIT 2025 Write-up: Breaking Authentication via SQL Injection
In this challenge, we are presented with a seemingly innocent login form and a mysterious prompt: "Say my username." While it appears simple on the surface, this challenge requires a solid understandi...
SKRCTF - Forgot Password Challenge: Exploiting Client-Side Authentication
The "Forgot Password" challenge from SKRCTF highlights a classic web security flaw commonly seen in beginner-level Capture The Flag (CTF) competitions. The challenge presents a simple login page where...
SKRCTF: My First SQL – Beginner SQL Injection Challenge Writeup
The "My First SQL" challenge from the SKRCTF series offers an accessible introduction to SQL injection (SQLi) vulnerabilities, making it an excellent starting point for individuals new to web security...
SKRCTF: Where is the Flag? – Web CTF Challenge Writeup
The "Where is the flag?" challenge from the SKRCTF series is a beginner-friendly web challenge that emphasises the importance of thorough inspection and attention to detail in web security.Challenge O...
Reverse Engineering in picoCTF: A Journey Through Binaries, Bits, and Flags
Reverse engineering is a core skill in cybersecurity that involves analyzing a system, software, or binary to understand its design, functionality, or hidden components, often without access to its so...
A Rewarding Journey: Collaborating with PKKTB and SISA for Sustainable Futures
As Khoo Lay Yang, the President of Sustainable Future Fusion (SFF) at Asia Pacific University of Technology and Innovation (APU/APIIT), I am honored to share one of the most fulfilling experiences in ...
Forging New Horizons: Pioneering the APU x KLTESA Alliance for a Sustainable Future
It is a truly rewarding experience to witness yet another successful coordination of a Memorandum of Understanding (MOU) between the Asia Pacific University of Technology and Innovation (APU/APIIT) an...
4.2.7 Packet Tracer - Configure Router-on-a-Stick Inter-VLAN Routing
In this lab, we will configure Router-on-a-Stick for Inter-VLAN Routing using Packet Tracer. Router-on-a-Stick is a networking technique used to allow communication between devices in different VLANs....
3.6.1 Packet Tracer - Implement VLANs and Trunking | Cisco Networking
In modern networking, Virtual Local Area Networks (VLANs) and trunking play a crucial role in segmenting networks and ensuring efficient communication between different departments or devices. VLANs a...
3.4.5 Packet Tracer - Configure Trunks | Cisco VLAN Trunking Guide
In this activity, you will learn how to configure and verify trunk ports on Cisco switches using Packet Tracer. Trunking allows multiple VLANs to communicate across switches by forwarding tagged traff...
3.3.12 Packet Tracer – VLAN Configuration | VLAN Setup & Troubleshooting
Virtual Local Area Networks (VLANs) are essential in networking for segmenting traffic, improving security, and reducing broadcast domains. In this Packet Tracer activity (3.3.12), we will configure V...
1.3.6 Packet Tracer - SSH Configuration | Secure Remote Access on a Cisco Switch
This write-up provides step-by-step instructions on how to configure SSH access on a Cisco switch using Packet Tracer. The objective is to secure remote management by enabling SSH, setting up user aut...
CTF Audio Steganography: Hands-On Strategies for Decoding Hidden Messages
In this class task, you will explore the fascinating field of Audio Steganography, where information is hidden within audio signals. Through a series of tasks in Part A and Part B, you will utilize sp...
Workshop 7: Advancing Sustainable Futures Through The Lost Food Project
On behalf of Sustainable Future Fusion (SFF) at Asia Pacific University of Technology and Innovation (APU/APIIT), I am honored to share the success of our recent Food Supply Rescue initiative in colla...
Proud to be part of Tirai 2025!
As the President of Sustainable Future Fusion (SFF), it is with profound honor and sincere gratitude that I reflect upon our recent successful event at the esteemed Pusat Kreatif Kanak-Kanak Tuanku Ba...
Leading Sustainability Efforts: SFF@APU’s Community Clean-Up at Bukit Gasing & Terrarium Workshop for Seniors
As the President of Sustainable Future Fusion @ Asia Pacific University of Technology and Innovation (SFF@APU), I am proud to share our latest initiative—a meaningful Community Clean-Up Drive at Buk...
A Day of Global Harmony at APU: World Cultural Diversity Day
At Asia Pacific University of Technology & Innovation, we recently celebrated World Cultural Diversity Day in a way that truly embodied our commitment to unity, creativity, and innovation. As Pres...