stack_based_buffer_overflow_intro/pro_editor.c at main · gum3t/stack_based_buffer_overflow_intro · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
#include <stdio.h>

void banner() {
	puts(" _____           ______    _ _ _");
	puts("|  __ \\         |  ____|  | (_) |");
	puts("| |__) | __ ___ | |__   __| |_| |_ ___  _ __");
	puts("|  ___/ '__/ _ \\|  __| / _` | | __/ _ \\| '__|");
	puts("| |   | | | (_) | |___| (_| | | || (_) | |");
	puts("|_|   |_|  \\___/|______\\__,_|_|\\__\\___/|_|");
	puts("                     Welcome to ProEditor v12.3");
	puts("\n\n\n");
}

void license_accepted() {
	puts("[+] Your license key has been accepted.");
	puts("===================================");
	puts("===================================");
	puts("====      CONGRATULATIONS      ====");
	puts("===================================");
	puts("====        YOU MANAGED        ====");
	puts("====   TO EXPLOIT THE BINARY   ====");
	puts("===================================");
	puts("===================================");
	puts("==  STACK BASED BUFFER OVERFLOW  ==");
	puts("===================================");
	puts("===================================");
}

void get_license() {

	char license_buffer[256];

	puts("[+] Thanks for downloading ProEditor.");
	puts("[+] To proceed with the installation, please submit your license key:");

	gets(license_buffer);

	printf("[+] Submitted license key: %s\n", license_buffer);

	return;
}

int main() {

	banner();

	get_license();

	puts("[!] Invalid license, no ProEditor for you :v");
}