buffer overflow 0 Description Smash the stack Let’s start off simple, can you overflow the correct buffer? The program is available here. You can view source here. And connect with it using: nc saturn.picoctf.net 65445 Solving Download the sourcecode and the program If we check the sourcecode we will see, that a sigsev will give us a flag Playing with
RPS Description Here’s a program that plays rock, paper, scissors against you. I hear something good happens if you win 5 times in a row. Connect to the program with netcat: nc saturn.picoctf.net 53296 The program’s source code with the flag redacted can be downloaded here. Solving Checking the code (as mentioned in the hint of the challenge) In the
flag leak Description Story telling class 1/2 I’m just copying and pasting with this program. What can go wrong? You can view source here. And connect with it using: nc saturn.picoctf.net 51385 Solving This is a format string attack. So if we use some magic to send some format strings to the app, this should get us the flag. Here
Friends Bielsa: ‚Everything is allowed, except stop fighting‘ Given was this image: Todos Like always – I check strings and exiftools and the file itself! But no command give us something. $ ~ # file messi.jpg messi.jpg: JPEG image data, JFIF standard 1.01, aspect ratio, density 1×1, segment length 16, baseline, precision 8, 720×628, components 3 exiftool messi.jpg > messi.jpg_exifdata
Umgang mit Passwörtern im Allgemeinen Passwörter, ein notwendiges Übel und häufig der einzige Schutz vor dem Zugriff auf die eigene Identität (facebook) oder andere Services. Nun kommt es aber vor, dass wir Administratoren mal Passwörter und Benutzernamen austauschen müssen. Häufig auch für mehrere Benutzer. Weiter muss man sich dann noch die Frage stellen, wie man die Passwörter und Benutzernamen sicher