GameHacking.gg CTF (DEFCON 32)

Level 6 [400 pts]

Challenge Description

Challenge Description:

Unicorn tells us, that to pass we need Fish, but we are only given apple and there is statue that we should give fish to pass level. Fish

Looking in dnSpy I see hasFish class with OnTriggerEnter method that looks like this:

private void OnTriggerEnter(Collider other)
{
	if (other.CompareTag("Player"))
	{
		if (this.inventory == null)
		{
			Debug.LogError("Could not get player inventory");
			return;
		}
		this.fishItems = this.inventory.InventoryContains("Fish");
		if (this.fishItems.Count > 0)
		{
			this.completedFeedback.PlayFeedbacks();
			global::UnityEngine.Object.Instantiate<GameObject>(this.fishFlag, base.transform.position, Quaternion.identity);
			GameObject[] array = this.completionObjects;
			for (int i = 0; i < array.Length; i++)
			{
				array[i].SetActive(false);
			}
			array = this.antiCheatWarnings;
			for (int i = 0; i < array.Length; i++)
			{
				array[i].SetActive(true);
			}
			return;
		}
		Debug.Log("No fish found :(");
	}
}

if (this.fishItems.Count > 0) looks like thing that I need to change. I’ll change it to if (this.fishItems.Count >= 0) so it will require 0 fish or more, instead of more than 0. Save module, restart game.

Stand on yellow platform, and there it is. Statue disappeared and flag spawned. Picking it up reveals GHCTF{Kitty_appreciates_the_fish_magic}.

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