Tag: Cyber security

Written by shakuganz

HackTheBox – Precious Write-up

Hi everyone! This article is on a Linux easy machine that requires enumerating the downloaded metadata of the PDF file from tbe website for foothold, enumerating directories for password to another user, and finally exploiting sudo privilege misconfiguration and Yaml.load Ruby deserialization for privilege escalation. Let’s get started! 1. Nmap $ IP=10.10.11.189 $ sudo nmap […]

Written by shakuganz

HackTheBox – Photobomb Write-up

Hi everyone! This write-up is on an easy Linux machine which focused on enumerating the webpage source for backdoor access to login to a webpage, using command injection vulnerability for initial access, and path hijacking via sudo for root privilege. Let’s get started! 1. Nmap enumeration $ IP=10.10.11.182 $ sudo nmap -sC -sV -p- $IP […]

Written by shakuganz

Flare-On 9 Write-up

Hi there! This year is my first time taking part in Flare-On CTF. This year’s Flare-On was held from 1st October 2022 to 12th November 2022. There are a total of 11 challenges in this year’s Flare-On. Do download and reverse engineer the binary as my write-up doesn’t include screenshots the whole reverse engineering process. […]

Written by shakuganz

HackTheBox – Trick Write-up

Hi everyone! This is a Linux machine where the initial access is very CTF-like thus is not to my liking. However, I like the privilege escalation method as it is not very common. The initial access requires us to enumerate DNS such as zone transfer to reveal the subdomain name. There are plenty of rabbit […]

Written by shakuganz

HackTheBox – Support Write-up

Hi everyone! This machine is an Active Directory machine where we have to enumerate SMB shared folder, use dnSpy to reverse engineer a .NET binary for LDAP credentials, LDAP query to find another user’s credentials, initial access via winrm, and privilege escalate using Kerberos Resource-based Constrained Delegation. Let’s get started! Nmap enumeration $ IP=10.10.11.174 $ […]

Written by shakuganz

HackTheBox – Timelapse Write-up

Hi everyone! This is a Windows machine that only test Active Directory related content during privilege escalation. For initial access, we have to enumerate SMB for a password protected ZIP file which stores a password protected PFX file. Cracking using zip2john and crackpkcs12 was done before generating a public and private key using the PFX […]

Written by shakuganz

HackTheBox – RedPanda

Hi everyone! This is a Linux machine that requires exploiting SSTI in a Java SpringFramework application via a search bar on the webpage for RCE and then initial access. For privilege escalation, we will need to emulate what group the user is in, discover a log file he/she has access to, use pspy to discover […]

Written by shakuganz

HackTheBox – Sick ROP Write-up

Hi everyone! This is a SigReturn Oriented Programming (SROP) challenge on an x64 Linux binary file on 15 August 2020. We need to use SYS_mprotect before allowing on-stack shellcode execution to obtain a shell on the server. Let’s get started! 1. Files provide sick_rop (x64 ELF binary) 2. Tools required pwntools ROPgadget IDA Pro/Freeware 3. […]

Written by shakuganz

HackTheBox – Paper Write-up

Hi everyone! Today’s write-up is on Paper, an easy Linux machine from HackTheBox. This machine requires us to enumerate the HTTP response header to discover the domain name, enumerate the version of WordPress for a vulnerability, and a specific comment in a post before having the knowledge to exploit the vulnerability to read secret content […]