Homebrew Possible CaveStory Exploit

[pokeemerald]

ooo nice

Guys look at the date.

 

[Jimbo_Slim]

Heh. I played Cave Story for the first time not too long ago and it's amazing. Finding an exploit for it makes it even better.

 

[pokeemerald]

Heh. I played Cave Story for the first time not too long ago and it's amazing. Finding an exploit for it makes it even better.

Please just look at the date

 

[WeedZ]

I tried to do the same thing but I didn't seem to get a crash yet. If you can, can you send me your save file of this bug so I can debug it?

This is a dead thread. Youre not going to get a buffer overflow from editing unsigned data from a text file anyway. And if it did crash, that doesn't mean an exploit is possible, it means it kept the overflow from happening which was intended.

 

[Deleted member 370283]

Since this thread was seemingly resurrected, I might as well bring up the results I had with this. No, an exploit using this entrypoint is not possible. Maaaaybe someway or somewhere else, but not here.

I ran through and debugged the code, watching exactly what it does, and a buffer overflow does indeed occur. In the code, it specifically checks for a null terminating character, but never verifies the date string's length. This is all great, but the overflow does not occur within an exploitable area of memory (that I am aware of).
Perhaps I will eventually continue to search for entrypoints within this game, as this was a fun little exercise for me at the time, but as it stands, this isnt an exploitable entrypoint. Sorry guys.