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bug-hunting-101

What is this?

This repository is to help new-comers (like ourselves) of binary bug hunting area to improve their skills.

Currently, the gap between CTF and real world bug hunting can be quite huge. And this repository is our attempt to solve that problem by porting the real world bug hunting to small exercises.

CVEs are selected out and setup in a certain scene, your goal is to repeat the process of finding such vulnerabilities out.

Intro

We have prepared 3 levels. Each level provides excersises with different difficulties:

  • Level 1: Details of the CVEs are provided to help you from "re-discovering" the original vulnerability. Reports like this are provided. So this should be the easiest level.
  • Level 2: the details will be emitted. But to narrow down, information about which part of the project contains such vulnerability will be provided. For example, if the bug is about ANGEL (module of the Chromium project), the information about the file will be provided. Most of the time, the path to the patch file should help that.
  • Level 3: quite like level 2, but need PoC and exploit (optional)

LEVEL 1

Exercise No. CVEs Target
LEVEl_1/exercise_1 CVE-2020-6542 Chrome WebGL
LEVEl_1/exercise_2 CVE-2020-6463 Chrome ANGLE
LEVEl_1/exercise_3 CVE-2020-16005 ANGLE
LEVEl_1/exercise_4 CVE-2021-21204 Chrome Blink
LEVEl_1/exercise_5 CVE-2021-21203 Blink
LEVEl_1/exercise_6 CVE-2021-21188 Blink
LEVEl_1/exercise_7 CVE-2021-30565 V8 GC

LEVEL 2

Exercise No. CVEs Target
LEVEL_2/exercise_1 CVE-2021-21128 Blink
LEVEL_2/exercise_2 CVE-2021-21122 Blink
LEVEL_2/exercise_3 CVE-2021-21112 Blink
LEVEL_2/exercise_4 CVE-2021-30565 Chrome Tab
LEVEL_2/exercise_5 CVE-2021-21159 Tab
LEVEL_2/exercise_6 CVE-2021-21190 Chrome pdfium
LEVEL_2/exercise_7 CVE-2020-6422 Blink

LEVEL 3

Exercise No. CVEs Target
LEVEl_3/exercise_1 CVE-2021-21226 navigation_predictor
LEVEl_3/exercise_2 CVE-2021-21224 V8
LEVEl_3/exercise_3 CVE-2021-21223 mojo
LEVEl_3/exercise_4 CVE-2021-21207 IndexDB
LEVEl_3/exercise_5 CVE-2021-21202 extensions
LEVEl_3/exercise_6 CVE-2021-21198 IPC
LEVEl_3/exercise_7 CVE-2021-21155 Tab

Original Author

How to contribute

Writing your exercise follow this format.