checksec

• identifies security properties

• Common Security Properties:

  • RELRO: Read-only relocation (RELRO) helps protect against certain types of attacks by making parts of the binary’s memory read-only after dynamic linking.

  • STACK CANARY: A stack canary is a value placed on the stack to detect buffer overflows.

  • NX (No-Execute): NX prevents execution of code from writable memory regions, reducing the risk of buffer overflow attacks.

  • PIE (Position-Independent Executable): PIE randomizes the base address of the binary, making it harder for attackers to predict memory locations.

  • RPATH/RUNPATH: These properties control the search paths for shared libraries.

  • Symbols: Indicates whether symbols (debugging information) are present in the binary.

  • FORTIFY: Fortification adds runtime checks to prevent buffer overflows.

checksec aplet123
[*] Checking for new versions of pwntools
    To disable this functionality, set the contents of /home/jayden/.cache/.pwntools-cache-3.11/update to 'never' (old way).
    Or add the following lines to ~/.pwn.conf or ~/.config/pwn.conf (or /etc/pwn.conf system-wide):
        [update]
        interval=never
[*] You have the latest version of Pwntools (4.11.1)
[*] '/run/user/1000/gvfs/sftp:host=jaydens-macbook.local/Users/jaydenl/Dev/CTF/aplet123'
    Arch:     amd64-64-little
    RELRO:    Partial RELRO
    Stack:    Canary found
    NX:       NX enabled
    PIE:      No PIE (0x400000)