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_______________________________________________________________________
                                 ABOUT
_______________________________________________________________________
Description: Using a buffer overflow exploit
Repository: Buffer owerflow exploits
GCC-Compilier: 14.2.0
Tested on: Linux 6.11.2
Author: scarlet-oni

_______________________________________________________________________
                        #1 EXAMPLE OWERFLOW 
_______________________________________________________________________
gcc example_owerflow.c
./a.out <arg>

// the variable buffer_1 is located in memory immediately after buffer_2, 
// 5 bytes are allocated for both lines, 
// if we exceed the input of the first buffer, 
// then it will replace other variables and starting from a certain size will cause the program to terminate

// input 8 bytes

./a.out 12345678
---
[ BEFORE ] buffer_2 info: 0x7ffc9eb5b4d2 | str2
[ BEFORE ] buffer_1 info: 0x7ffc9eb5b4d7 | str1
[ BEFORE ] value info: 0x7ffc9eb5b4dc | 5 (0x00000005)
[ STRCPY ] buffer_2 was writed 8 bytes
[ AFTER ] buffer_2 info: 0x7ffc9eb5b4d2 | 12345678
[ AFTER ] buffer_1 info: 0x7ffc9eb5b4d7 | 678
[ AFTER ] value info: 0x7ffc9eb5b4dc | 5 (0x00000000)

// input 10 bytes

./a.out 1234567891
---
[ BEFORE ] buffer_2 info: 0x7ffe162329c2 | str2
[ BEFORE ] buffer_1 info: 0x7ffe162329c7 | str1
[ BEFORE ] value info: 0x7ffe162329cc | 5 (0x00000005)
[ STRCPY ] buffer_2 was writed 10 bytes
[ AFTER ] buffer_2 info: 0x7ffe162329c2 | 1234567891
[ AFTER ] buffer_1 info: 0x7ffe162329c7 | 67891
[ AFTER ] value info: 0x7ffe162329cc | 0 (0x00000000)

// input 15 bytes 

./a.out 123456789123456
---
[ BEFORE ] buffer_2 info: 0x7ffd0e05b892 | str2
[ BEFORE ] buffer_1 info: 0x7ffd0e05b897 | str1
[ BEFORE ] value info: 0x7ffd0e05b89c | 5 (0x00000005)
[ STRCPY ] buffer_2 was writed 15 bytes
[ AFTER ] buffer_2 info: 0x7ffd0e05b892 | 123456789123456
[ AFTER ] buffer_1 info: 0x7ffd0e05b897 | 6789123456
[ AFTER ] value info: 0x7ffd0e05b89c | 892613426 (0x00000000)

// input 25 bytes

./a.out 123456789123456123456789
---
[ BEFORE ] buffer_2 info: 0x7fff97808d62 | str2
[ BEFORE ] buffer_1 info: 0x7fff97808d67 | str1
[ BEFORE ] value info: 0x7fff97808d6c | 5 (0x00000005)
[ STRCPY ] buffer_2 was writed 24 bytes
[ AFTER ] buffer_2 info: 0x7fff97808d62 | 123456789123456123456789
[ AFTER ] buffer_1 info: 0x7fff97808d67 | 6789123456123456789
[ AFTER ] value info: 0x7fff97808d6c | 892613426 (0x00000000)
zsh: segmentation fault (core dumped)  ./a.out 123456789123456123456789

_______________________________________________________________________
                      #2 NOTE SEARCHER EXPLOIT
_______________________________________________________________________
// launch
gcc -o notesearcher.o note_searcher.c
gcc exploit_notesearcher.c
./a.out

// You can set the offset yourself
./a.out <your offset>

______________________________________________________________________
                          LEGAL STATEMENT
______________________________________________________________________
By downloading, modifying, redistributing, and/or executing buffer-overflow-exploits, the
user agrees to the contained LEGAL.txt statement found in this repository.

I, scarlet-oni, the creator, take no legal responsibility for unlawful actions
caused/stemming from this program. 

Use responsibly and ethically!