> For the complete documentation index, see [llms.txt](https://hacker-mind.gitbook.io/hacker-mind/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacker-mind.gitbook.io/hacker-mind/exploit.md).

# Exploit

## Identification

1. Check the version of services
2. Check the service
3. Check the OS version

{% embed url="<https://www.exploit-db.com/search>" %}

## Build C Script

With the update to Kernel 5.18.0-kali7-amd64 in Kali 2022.3 (2022 Kali Rolling release), GCC 12.2.0 no longer includes libraries required by older Linux Kernels. In order to compile C and C++ exploits that can be run on older generation targets (< Kernel 2.6), this is recommendation:

Use gcc with docker

<pre class="language-bash"><code class="lang-bash"><strong>docker pull gcc:4.9
</strong># 4.9: Pulling from library/gcc
# Digest: sha256:6356ef8b29cc3522527a85b6c58a28626744514bea87a10ff2bf67599a7474f5
# Status: Image is up to date for gcc:4.9
# docker.io/library/gcc:4.9


# copy the exploit.c in the current directory
docker run --rm -v "$PWD":/usr/src/myapp -w /usr/src/myapp gcc:4.9 <a data-footnote-ref href="#user-content-fn-1">gcc -o exploit exploit.c</a>

</code></pre>

```bash
gcc code.c -o programname

#if need 32 bit
gcc -m32 -Wl,--hash-style=both exploit.c -o exploit


# if error when execute binary
./exploit: /lib/tls/libc.so.6: version `GLIBC_2.34' not found (required by ./exploit)

# compile with docker
```

### Compile with Docker

1. Preparation

```
docker pull debian:10
mkdir ~/docker_shared
docker run --name debian10 -v ~/docker_shared:/media -it debian:10 /bin/bash
```

2. Install gcc

```
apt update && apt install gcc-multilib build-essential
```

3. Manage docker

```
docker stop/start debian10

docker exec -it debian10 /bin/bash
```

### Windows

Indicators:

if you see this in c script it should compile with windows:

```c
#include <windows.h>
#pragma comment(lib, "ws2_32")
```

```bash
# install migw32 first

sudo apt install gcc-mingw-w64
```

Compile the script

```bash
# compile
i686-w64-mingw32-gcc code.c -o programname

# if need lib use -l
i686-w64-mingw32-gcc code.c -o programname -l<libname>

# example
i686-w64-mingw32-gcc code.c -o programname -lws2_32
```

run the exe program with [**wine**](https://wiki.winehq.org/Download)**.**

```bash
wine programname.exe
```

if wine have a problem `Error "wine is a 64-bit installation, it cannot be used with a 32-bit wineserver."`go to this website :

<https://forums.linuxmint.com/viewtopic.php?t=74356>

Alternative using [mono](https://www.mono-project.com/docs/getting-started/mono-basics/):

```
sudo apt install mono-runtime
```

Note:

<pre class="language-bash"><code class="lang-bash"><strong>
</strong><strong># win 64
</strong><strong>sudo apt install wine
</strong>

# if need wine 32
dpkg --add-architecture i386 &#x26;&#x26; apt-get update &#x26;&#x26;
apt-get install wine32:i386
</code></pre>

[^1]: this is gcc command