Description
This test is the first step in the PTSD challenges series: we recommend that you start with this first step.
You have volunteered to carry out a PTSD evaluation: “Protocole Très Sécurisé de transmission de Données”.
This protocol is used by a server to check the status of associated clients.
First, you’ll need to establish a secure communication channel with the server as client #6.
The test flag will be sent once the communication channel has been established.
Note: The libraries libcrypto.so.3 and libssl.so.3 are provided but are not to be analyzed in this test.
This challenge has been split into two parts:
Files
- docker-compose.yml
-
server
30.17 KiB – 64dcafefda9105f35f7ede09d1c92803e21e901545233bf672a2ca9a890bd2ab -
libcrypto.so.3
6.01 MiB – 1672bdbbadb62bd944523ed748bcf8bb830699b55fbb9f58badb7ed093d0a16f -
libssl.so.3
1.12 MiB – 4a4b97aaba454234148b351d0805e22297e6ccfd2187e9371e8242a1594952af -
keys.db
82 B – 7d048af71ef8ce4a15f751379c8ca4e5303e318b9f6a1918b57e7a5335c3fb59 -
lv1.flag
70 B – 33d4db31efbaec30172e731467f659b91cb04e8ccc53d15fa059ff939dfd6c9c -
lv2.flag
70 B – ab68ee7dd2f0361245c3d3bc96398f93c675e6b1d2ba7a6c1e2992b3ccfa77e6
Author
Challenge Instructions
- First, download docker-compose.yml:
curl https://hackropole.fr/challenges/fcsc2024-reverse-ptsd/docker-compose.public.yml -o docker-compose.yml - Launch the challenge by executing in the same folder:
docker compose up - Then, in another console, access the challenge with Netcat:
nc localhost 4000
In case you encounter problems, please consult the FAQ.
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