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CTFs & Stuff

CTF Walkthroughs, Challenge Solutions, etc.

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Home> Archive for Category: Solutions

Category: Solutions

These are solutions to miscellaneous CTFs or challenges.

Cat Links Solutions

WinDbg Cheat Sheet

I just started the EXP-301 course from Offensive Security and didn’t much like any of the WinDbg cheat sheets I found. So I made my own that’s more relevant toContinue readingWinDbg Cheat Sheet

Posted-onJuly 16, 2021September 1, 2021By lineBylineamlamarra
Cat Links Solutions

Exploit Education | Fusion | Level 05 Solution

Even more information leaks and stack overwrites. This time with random libraries / evented programming styles :> … Continue readingExploit Education | Fusion | Level 05 Solution

Posted-onMay 16, 2021July 14, 2023By lineBylineamlamarra
Cat Links Solutions

Exploit Education | Fusion | Level 04 Solution

Level04 introduces timing attacks, position independent executables (PIE), and stack smashing protection (SSP). Partial overwrites ahoy! … Continue readingExploit Education | Fusion | Level 04 Solution

Posted-onMarch 24, 2020By lineBylineamlamarra
Cat Links Solutions

Exploit Education | Fusion | Level 03 Solution

This level introduces partial hash collisions (hashcash) and more stack corruption … Continue readingExploit Education | Fusion | Level 03 Solution

Posted-onMarch 5, 2020April 20, 2021By lineBylineamlamarra
Cat Links Solutions

Exploit Education | Fusion | Level 02 Solution

This level deals with some basic obfuscation / math stuff. This level introduces non-executable memory and return into libc / .text / return orientated programming (ROP) … Continue readingExploit Education | Fusion | Level 02 Solution

Posted-onFebruary 25, 2020March 3, 2020By lineBylineamlamarra
Cat Links Solutions

Exploit Education | Fusion | Level 01 Solution

level00 with stack/heap/mmap aslr, without info leak :) … Continue readingExploit Education | Fusion | Level 01 Solution

Posted-onFebruary 17, 2020April 20, 2021By lineBylineamlamarra
Cat Links Solutions

Exploit Education | Fusion | Level 00 Solution

This is a simple introduction to get you warmed up … Continue readingExploit Education | Fusion | Level 00 Solution

Posted-onFebruary 13, 2020January 4, 2021By lineBylineamlamarra
Cat Links Solutions

Exploit Education | Fusion | Setup

I’ll be working through the Fusion challenges and posting my solution to each level here. These challenges are a step above Phoenix. If you haven’t completed those, or don’t alreadyContinue readingExploit Education | Fusion | Setup

Posted-onFebruary 13, 2020February 20, 2020By lineBylineamlamarra
Cat Links Solutions

ROP Emporium | ret2csu Solution

We’re back in ret2win territory, but this time without the useful gadgets. How will we populate the rdx register without a pop rdx? … Continue readingROP Emporium | ret2csu Solution

Posted-onDecember 20, 2019December 20, 2019By lineBylineamlamarra
Cat Links Solutions

ROP Emporium | pivot Solution

There’s only enough space for a three-link chain on the stack but you’ve been given space to stash a much larger ROP chain elsewhere. Learn how to pivot the stack onto a new location … Continue readingROP Emporium | pivot Solution

Posted-onDecember 11, 2019December 11, 2019By lineBylineamlamarra

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