cyber-security-resources/buffer_overflow_example/README.md
2018-02-16 00:06:04 -05:00

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# Buffer Overflow Example
***This is an example of a very bad coding practices*** that introduces a buffer overflow. The purpose of this code is to serve as a demonstration and exercise for [The Art of Hacking Series and live training](https://www.safaribooksonline.com/search/?query=Omar%20Santos%20hacking&extended_publisher_data=true&highlight=true&is_academic_institution_account=false&source=user&include_assessments=false&include_case_studies=true&include_courses=true&include_orioles=true&include_playlists=true&sort=relevance)
```
#include <stdio.h>
void secretFunction()
{
printf("Omar's Crappy Function\n");
printf("This is a super secret function!\n");
}
void echo()
{
char buffer[20];
printf("Please enter your name:\n");
scanf("%s", buffer);
printf("You entered: %s\n", buffer);
}
int main()
{
echo();
return 0;
}
```
The `char buffer[20];` is a really bad idea. The rest will be demonstrated in the course.