This one also needs some reversing, can you figure out what it's doing to the password? [get it here] Also, a note about stack strings: compilers like to load strings into memory by splitting the string into chunks of 8 bytes, and loading each chunk as a 64 bit integer. Radare2/Cutter will attempt to show you the content of these strings as an annotation, but sometimes you need to use your intuition. ...
No cracking this time, take a look and see what this program is doing: [get it here]
A bit more difficult this time (I think), might be a bit more complicated than flipping a jump: [get the program here]
Crack this program and the flag will be yours: [get it here]
This one needs a lot of brainpower: [get the program]