worked on sql injection, added example page

2024-04-12 14:21:09 +00:00 · 2024-04-12 14:21:09 +00:00 · 0e2175a8fc
parent fad70625fd
commit 0e2175a8fc
16 changed files with 421 additions and 237 deletions
--- a/.gitignore
+++ b/.gitignore
@ -0,0 +1,3 @@
+*.db
+.mypy_cache/
+__pycache__/
--- a/introduction-to-sql-injection/example/README.md
+++ b/introduction-to-sql-injection/example/README.md
@ -0,0 +1,30 @@
+# Example project of a website including an SQL injection 
+
+This implementation is meant to be used for training purposes.
+Do not use the code in production or development.
+
+## Usage
+
+Use python poetry to install dependencies in the following way.
+
+```sh
+poetry install
+```
+
+If you want to install the dependencies manually use a venv in the following way.
+
+```sh
+python3 -m venv venv
+source venv/bin/activate
+pip install flask
+```
+
+Dependencies can be found inside the `./pyproject.toml` file.
+
+After installation has been done, start the flask server.
+
+```sh
+poetry run python3 ./flask_sqli.py
+```
+
+Now, the website is accessible at [localhost:5000](http://localhost:5000/)
--- a/introduction-to-sql-injection/example/create_db.py
+++ b/introduction-to-sql-injection/example/create_db.py
@ -1,21 +1,23 @@
 import sqlite3

-con = sqlite3.connect("secrets.db")
+con = sqlite3.connect("users.db")
 cur = con.cursor()

+cur.execute("DROP TABLE IF EXISTS users")
+
 cur.execute(
    """
-    CREATE TABLE user_data(
+    CREATE TABLE users(
        user_id INTEGER PRIMARY KEY AUTOINCREMENT,
        username TEXT, password TEXT, notes TEXT
-        );
+        )
    """
 )


 res = cur.execute(
    """
-    INSERT INTO user_data (username, password, notes)
+    INSERT INTO users (username, password, notes)
        VALUES (
            'admin',
            's3cur3P455w0rd',
@ -26,7 +28,6 @@ res = cur.execute(
            'catweasle_h3xh3x',
            'sqli{f91f3b7d41a6a40070ce7112bebfaaab}'
        )
-        ;
    """
 )

--- a/introduction-to-sql-injection/example/flask_sqli.py
+++ b/introduction-to-sql-injection/example/flask_sqli.py
@ -0,0 +1,43 @@
+from flask import Flask, request, render_template
+import sqlite3
+
+app = Flask(__name__)
+app.secret_key = 'secret_key'
+
+def db_connection():
+    conn = sqlite3.connect('users.db')
+    c = conn.cursor()
+    return c
+
+
+@app.route('/')
+def index():
+    return render_template('login.html')
+
+
+@app.route('/login', methods=['POST'])
+def login():
+    username = request.form['username']
+    password = request.form['password']
+
+    # Vulnerable code with SQL injection vulnerability
+    query = "SELECT * FROM users WHERE username='" + username + "' AND \
+    password='" + password + "'"
+
+    c = db_connection()
+    c.execute(query)
+    user = c.fetchone()
+
+    try:
+        if user:
+            login_failed = False
+            return render_template('profile.html')
+        else:
+            login_failed = True
+            return render_template('login.html', login_failed=login_failed, error_message=user)
+    except sqlite3.Error as e:
+        flash(f"{e}")
+        return render_template('login.html')
+
+if __name__ == '__main__':
+    app.run(host='0.0.0.0', debug=True)
--- a/introduction-to-sql-injection/example/poetry.lock
+++ b/introduction-to-sql-injection/example/poetry.lock
@ -0,0 +1,178 @@
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+
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+[[package]]
+name = "werkzeug"
+version = "3.0.2"
+description = "The comprehensive WSGI web application library."
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "werkzeug-3.0.2-py3-none-any.whl", hash = "sha256:3aac3f5da756f93030740bc235d3e09449efcf65f2f55e3602e1d851b8f48795"},
+    {file = "werkzeug-3.0.2.tar.gz", hash = "sha256:e39b645a6ac92822588e7b39a692e7828724ceae0b0d702ef96701f90e70128d"},
+]
+
+[package.dependencies]
+MarkupSafe = ">=2.1.1"
+
+[package.extras]
+watchdog = ["watchdog (>=2.3)"]
+
+[metadata]
+lock-version = "2.0"
+python-versions = "^3.11"
+content-hash = "bd088dde30dfcf8fd3b70f5ef89b5a64561c2d092bc581de6bacf86c390470f6"
--- a/introduction-to-sql-injection/example/pyproject.toml
+++ b/introduction-to-sql-injection/example/pyproject.toml
@ -0,0 +1,16 @@
+[tool.poetry]
+name = "sql-injection-flask"
+version = "0.1.0"
+description = "A Flask implementation including an SQL injection."
+authors = ["whx <mail@stefan.works>"]
+readme = "README.md"
+package-mode = false
+
+[tool.poetry.dependencies]
+python = "^3.11"
+Flask = "^3.0.3"
+
+
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"
--- a/introduction-to-sql-injection/example/static/coffeeshop-logo.jpg
+++ b/introduction-to-sql-injection/example/static/coffeeshop-logo.jpg
--- a/introduction-to-sql-injection/example/static/hacker-cat.jpg
+++ b/introduction-to-sql-injection/example/static/hacker-cat.jpg
--- a/introduction-to-sql-injection/example/static/logo.svg
+++ b/introduction-to-sql-injection/example/static/logo.svg
@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" width="100" height="100">
+    <path fill="#3d3d3d" d="M50 0c27.574 0 50 22.426 50 50s-22.426 50-50 50S0 77.574 0 50 22.426 0 50 0zm0 8C29.043 8 12 25.043 12 46c0 10.481 4.141 20.017 10.886 27.012L50 92l27.114-18.988C83.859 66.017 88 56.481 88 46c0-20.957-17.043-38-38-38zm12 34c2.206 0 4-1.794 4-4s-1.794-4-4-4H38c-2.206 0-4 1.794-4 4s1.794 4 4 4h24z"/>
+</svg>
+
--- a/introduction-to-sql-injection/example/static/stylesheet.css
+++ b/introduction-to-sql-injection/example/static/stylesheet.css
@ -0,0 +1,52 @@
+/* Body */
+body {
+    font-family: Arial, sans-serif; /* Arial as the first choice, followed by generic sans-serif */
+    background-color: #f4f4f4; /* Light gray */
+    margin: 0;
+    padding: 0;
+}
+
+/* Login container */
+.login-container {
+    background-color: #fff; /* White */
+    padding: 20px;
+    border-radius: 8px;
+    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
+    width: 300px;
+    margin: 50px auto; /* Center the container horizontally and add spacing from the top */
+}
+
+h2 {
+    text-align: center;
+    margin-bottom: 20px;
+}
+
+label {
+    font-weight: bold;
+}
+
+input[type="text"],
+input[type="password"] {
+    width: 100%;
+    padding: 10px;
+    margin-bottom: 20px;
+    border: 1px solid #ccc;
+    border-radius: 4px;
+    box-sizing: border-box;
+}
+
+input[type="submit"] {
+    width: 100%;
+    padding: 10px;
+    background-color: #007bff; /* Blue */
+    color: #fff;
+    border: none;
+    border-radius: 4px;
+    cursor: pointer;
+    font-size: 16px;
+}
+
+input[type="submit"]:hover {
+    background-color: #0056b3; /* Darker blue */
+}
+
--- a/introduction-to-sql-injection/example/templates/login.html
+++ b/introduction-to-sql-injection/example/templates/login.html
@ -0,0 +1,31 @@
+{% extends "template.html" %}
+{% block info %}
+    <div class="login-container">
+        <h2>Login</h2>
+          {% with messages = get_flashed_messages(with_categories=True) %}
+            {% if messages %}
+              {% for category, message in messages %}
+                <div class="alert alert-{{ category }}">
+                    <h5>{{ message }}</h5>
+                </div>
+              {% endfor %}
+            {% endif %}
+          {% endwith %}
+        {% if login_failed %}
+            <div id="login-failed-msg" style="color: red; text-align: center;
+                margin-bottom: 10px;">
+                Login Failed
+            </div>
+        {% endif %}
+        <form action="/login" method="post">
+            <label for="username">Username:</label><br>
+            <input type="text" id="username" name="username"><br>
+            <label for="password">Password:</label><br>
+            <input type="password" id="password" name="password"><br><br>
+            <input type="submit" value="Login">
+        </form>
+    </div>
+    {% if error_message %}
+        {{ error_message }}
+    {% endif %}
+{% endblock info %}
--- a/introduction-to-sql-injection/example/templates/profile.html
+++ b/introduction-to-sql-injection/example/templates/profile.html
@ -0,0 +1,7 @@
+{% extends "template.html" %}
+{% block info %}
+You made it, grab a coffee!
+<br></br>
+<img src="../static/hacker-cat.jpg" alt="Coffee Shop Logo" class="logo">
+{% endblock info %}
+
--- a/introduction-to-sql-injection/example/templates/template.html
+++ b/introduction-to-sql-injection/example/templates/template.html
@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<!-- Basic Page Needs
+   -->
+  <meta charset="utf-8">
+  {% if title %}
+   <title>{{ title }}</title>
+  {% endif %}
+<!-- Mobile Specific Metas
+   -->
+  <meta name="viewport" content="width=device-width, initial-scale=1 shrink-to-fit=no">
+<!-- FONT
+  -->
+  <!-- <link href="//fonts.googleapis.com/css?family=Raleway:400,300,600" rel="stylesheet" type="text/css"> -->
+<link rel="stylesheet" href="../static/stylesheet.css">
+<link rel="icon" type="image/jpg" href="../static/coffeeshop-logo.jpg">
+</head>
+<body>
+<!-- Primary Page Layout
+   -->
+<div style="margin-top:5%; margin-left:5%">
+ <div style="width:100%;">
+  <div style="width: 80%; height: 100px; float: left;">
+     {% block info %}
+     {% endblock %}
+  </div>
+ </div>
+</div>
+<!-- End Document
+   -->
+</body>
+</html>
--- a/introduction-to-sql-injection/images/exploits_of_a_mom.png
+++ b/introduction-to-sql-injection/images/exploits_of_a_mom.png
--- a/introduction-to-sql-injection/presentation.html
+++ b/introduction-to-sql-injection/presentation.html
@ -124,9 +124,9 @@ Next Presentation</li>
 <h3 id="number-1">Number 1</h3>
 <p>An SQL Query as a string embedded in other languages</p>
 <div class="sourceCode" id="cb1"><pre
-class="sourceCode python"><code class="sourceCode python"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a>sql_query <span class="op">=</span> </span>
+class="sourceCode python"><code class="sourceCode python"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a>sql_query <span class="op">=</span></span>
 <span id="cb1-2"><a href="#cb1-2" aria-hidden="true" tabindex="-1"></a>  cursor.execute(</span>
-<span id="cb1-3"><a href="#cb1-3" aria-hidden="true" tabindex="-1"></a>    <span class="st">&quot;SELECT * FROM user_data where username = &#39;foo&#39; and password = &#39;s3cur3P4ssw0rd&quot;</span></span>
+<span id="cb1-3"><a href="#cb1-3" aria-hidden="true" tabindex="-1"></a>    <span class="st">&quot;SELECT * FROM user_data where username = &#39;admin&#39; and password = &#39;s3cur3P4ssw0rd&#39;&quot;</span></span>
 <span id="cb1-4"><a href="#cb1-4" aria-hidden="true" tabindex="-1"></a>  )</span></code></pre></div>
 </section>
 <section class="slide level1">
@ -134,243 +134,24 @@ class="sourceCode python"><code class="sourceCode python"><span id="cb1-1"><a hr
 <h3 id="number-2">Number 2</h3>
 <p>User input is possible as a part of said SQL query</p>
 <div class="sourceCode" id="cb2"><pre
-class="sourceCode python"><code class="sourceCode python"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a>sql_query <span class="op">=</span> cursor.execute(<span class="st">&quot;SELECT * FROM user_data where username = &#39;</span><span class="sc">%s</span><span class="st">&#39;&quot;</span> <span class="op">%</span> username)</span></code></pre></div>
+class="sourceCode python"><code class="sourceCode python"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a>sql_query <span class="op">=</span></span>
+<span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a>  cursor.execute(</span>
+<span id="cb2-3"><a href="#cb2-3" aria-hidden="true" tabindex="-1"></a>    <span class="st">&quot;SELECT * FROM user_data where username = &#39;</span><span class="sc">%s</span><span class="st">&#39; and password = &#39;</span><span class="sc">%s</span><span class="st">&#39;&quot;</span>,</span>
+<span id="cb2-4"><a href="#cb2-4" aria-hidden="true" tabindex="-1"></a>    <span class="op">%</span> (username, password)</span>
+<span id="cb2-5"><a href="#cb2-5" aria-hidden="true" tabindex="-1"></a>  )</span></code></pre></div>
 </section>
 <section class="slide level1">

 <h2 id="how-to-exploit-an-sql-injection">How to Exploit an SQL
 Injection</h2>
-<p>Work is a product of power by time.<br />
-<code>P</code> is your power to solve an issue.</p>
-<p><code>W = P x t</code></p>
-<p>The smarter you tackle work, the less time you need to solve an
-issue.</p>
-</section>
-<section class="slide level1">
-
-<h2 id="knowledge-is-a-map">Knowledge is a Map</h2>
-<p>You conventiently drive around the city using the underground. That’s
-how you get to know the main spots of the city.</p>
-<p><img src="./images/london_underground.jpg" alt="London Underground" width="50%" height="auto"></p>
-</section>
-<section class="slide level1">
-
-<h2 id="knowledge-is-a-map-1">Knowledge is a Map</h2>
-<p>Invest some time and explore deeper on foot. That’s how you get to
-know the back alleys.</p>
-<p><img src="./images/london_by_foot.jpg" alt="London by Foot" width="50%" height="auto"></p>
-</section>
-<section id="ghidra-an-overview" class="slide level1">
-<h1>Ghidra – an Overview</h1>
-</section>
-<section class="slide level1">
-
-<figure>
-<img data-src="./images/Ghidra-Overview.png"
-alt="Main View of Ghidra" />
-<figcaption aria-hidden="true">Main View of Ghidra</figcaption>
-</figure>
-</section>
-<section class="slide level1">
-
-<h2 id="watch-out-for-low-hanging-fruits">Watch Out for Low Hanging
-Fruits</h2>
-</section>
-<section class="slide level1">
-
 <ul>
-<li class="fragment">Data Segment</li>
-<li class="fragment">Names of Functions</li>
-<li class="fragment">Conditions &amp; Comparisons</li>
-<li class="fragment">Strings: Usernames, Passwords</li>
-<li class="fragment">URLs, IP &amp; Port Numbers</li>
-</ul>
-<p><strong>Do not try to understand the whole code at once, it will only
-drive you mad.</strong></p>
-</section>
-<section class="slide level1">
-
-<h3 id="data-segments">Data Segments</h3>
-<p><img src="./images/data-segments.png" alt="A look into the read only data segment" width="70%" height="auto"></p>
-<p>A look into the read only data segment</p>
-</section>
-<section class="slide level1">
-
-<h3 id="name-of-functions">Name of Functions</h3>
-<figure>
-<img data-src="./images/symbol-tree.png"
-alt="Functions contained in the binary a.k.a. Symbol Tree" />
-<figcaption aria-hidden="true">Functions contained in the binary a.k.a.
-Symbol Tree</figcaption>
-</figure>
-</section>
-<section class="slide level1">
-
-<h3 id="conditions-comparisions">Conditions &amp; Comparisions</h3>
-<p><img src="./images/decompiled-code.png" alt="Input is Compared to a Hard Coded String" width="50%" height="auto"></p>
-<p>Input is compared to a hard coded string</p>
-</section>
-<section class="slide level1">
-
-<h3 id="function-graph">Function Graph</h3>
-<p><img src="./images/function-graph.png" alt="Take a Look at the Flow Graph of Functions" width="50%" height="auto"></p>
-<p>Take a look at the flow graph of functions</p>
-</section>
-<section class="slide level1">
-
-<h3 id="strings">Strings</h3>
-<p><img src="./images/defined-strings-menu.png" alt="Open the Defined Strings Menu" width="50%" height="auto"></p>
-<p>Strings can not only be located in data but also in other code
-segments, sometimes obfuscated</p>
-</section>
-<section class="slide level1">
-
-<h3 id="strings-1">Strings</h3>
-<figure>
-<img data-src="./images/defined-strings.png" alt="An old friend" />
-<figcaption aria-hidden="true">An old friend</figcaption>
-</figure>
-</section>
-<section class="slide level1">
-
-<h3 id="binary-patching">Binary Patching</h3>
-<p>Bypass any undesireable condition via a <code>NOP</code>
-instruction.</p>
-<p><img src="./images/nop.jpg" alt="NOP, export your patched binary" width="30%" height="auto"></p>
-<p>NOP, export your patched binary</p>
-</section>
-<section class="slide level1">
-
-<h3 id="do-it-yourselves">Do It Yourselves!</h3>
-<ul>
-<li class="fragment"><a href="https://ghidra-sre.org/">Download
-Ghidra</a></li>
-<li class="fragment"><a href="https://crackmes.one">Download binaries at
-crackmes.one</a></li>
-<li class="fragment"><a href="https://hackthebox.eu">Find more binaries
-on hackthebox</a></li>
-<li class="fragment"><a href="https://tryhackme.com">Or Find even more
-on tryhackme</a></li>
-<li class="fragment">Download firmware of your favorite IoT
-appliances</li>
-</ul>
-</section>
-<section class="slide level1">
-
-<h2 id="a-word-on-binary-obfuscation">A Word On Binary Obfuscation</h2>
-<p>Software Obfuscation was born in 1984 at the <a
-href="https://ioccc.org/">International Obfuscated C Code
-Contest</a></p>
-<p><img src="./images/donut.gif" alt="A donut as code compiles to a spinning donut by Jim Hague" width="50%" height="auto"></p>
-</section>
-<section class="slide level1">
-
-<h3 id="what-exactly-might-be-obfuscated-in-your-code">What Exactly
-might be Obfuscated in Your Code?</h3>
-<section>
-<a
-href="https://cybersecurity.springeropen.com/track/pdf/10.1186/s42400-020-00049-3.pdf">Layered
-obfuscation: a taxonomy of software obfuscation techniques for layered
-security by Hui Xu et. al</a>
-</section>
-<section>
-<ul>
-<li class="fragment">Code Element Layers
-<ul>
-<li class="fragment">Layout</li>
-<li class="fragment">Controls</li>
-<li class="fragment">Data</li>
-<li class="fragment">Methods</li>
-<li class="fragment">Classes</li>
-</ul></li>
-</ul>
-</section>
-<section>
-<ul>
-<li class="fragment">Component
-<ul>
-<li class="fragment">Library Calls</li>
-<li class="fragment">Used Resources</li>
-</ul></li>
-<li class="fragment">Application Layer
-<ul>
-<li class="fragment">DRM System</li>
-<li class="fragment">Neural Networks</li>
-</ul></li>
-</ul>
-</section>
-</section>
-<section class="slide level1">
-
-<h2 id="techniques-of-obfuscation">Techniques of Obfuscation</h2>
-</section>
-<section class="slide level1">
-
-<h3 id="splitting-merging-of-strings">Splitting &amp; Merging of
-Strings</h3>
-<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">a</span> = <span class="st">&quot;BABE&quot;</span></span>
-<span id="cb3-2"><a href="#cb3-2" aria-hidden="true" tabindex="-1"></a><span class="ex">b</span> = <span class="st">&quot;CAFFEE&quot;</span></span>
-<span id="cb3-3"><a href="#cb3-3" aria-hidden="true" tabindex="-1"></a><span class="ex">f</span><span class="st">&quot;{b}{a}&quot;</span></span></code></pre></div>
-<p><a href="https://github.com/mandiant/flare-floss/">String
-Deobfuscation with FLOSS</a></p>
-</section>
-<section class="slide level1">
-
-<h2 id="packing">Packing</h2>
-<p>Compress binary data</p>
-<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a>            <span class="ex">ooooo</span>     ooo  ooooooooo.  ooooooo  ooooo</span>
-<span id="cb4-2"><a href="#cb4-2" aria-hidden="true" tabindex="-1"></a>            <span class="kw">`</span><span class="ex">888</span><span class="st">&#39;     `8&#39;</span>  <span class="kw">`</span>888   <span class="kw">`</span><span class="ex">Y88.</span> <span class="kw">`</span>8888    d8<span class="st">&#39;</span></span>
-<span id="cb4-3"><a href="#cb4-3" aria-hidden="true" tabindex="-1"></a><span class="st">             888       8    888   .d88&#39;</span>   Y888..8P</span>
-<span id="cb4-4"><a href="#cb4-4" aria-hidden="true" tabindex="-1"></a>             <span class="ex">888</span>       8    888ooo88P<span class="st">&#39;     `8888&#39;</span></span>
-<span id="cb4-5"><a href="#cb4-5" aria-hidden="true" tabindex="-1"></a>             <span class="ex">888</span>       8    888           .8PY888.</span>
-<span id="cb4-6"><a href="#cb4-6" aria-hidden="true" tabindex="-1"></a>             <span class="kw">`</span><span class="ex">88.</span>    .8<span class="st">&#39;    888          d8&#39;</span>  <span class="kw">`</span>888b</span>
-<span id="cb4-7"><a href="#cb4-7" aria-hidden="true" tabindex="-1"></a>               <span class="kw">`</span><span class="ex">YbodP</span><span class="st">&#39;     o888o       o888o  o88888o</span></span></code></pre></div>
-<p><a href="https://upx.github.io/">UPX Packer/Unpacker</a></p>
-</section>
-<section class="slide level1">
-
-<h2 id="mangling">Mangling</h2>
-Library symbols in compiled code for data that have the same name
-<section>
-<pre><code data-trim data-noescape>
-c++filt
-_ZNSt7__cxx1114collate_bynameIcEC2ERKNS_12basic_stringIcSt11char_traitsIcESaIcEEEm
-std::__cxx11::collate_byname<char>::collate_byname(std::__cxx11::basic_string<char,
-std::char_traits<char>, std::allocator<char> > const&, unsigned long)
-</code></pre>
-</section>
-<section>
-<a href="https://demangler.io/" alt="demangler">Online Demangler</a>
-</section>
-</section>
-<section class="slide level1">
-
-<h2 id="code-elements">Code Elements</h2>
-<ul>
-<li class="fragment">Adding Unnecessary Instructions</li>
-<li class="fragment">Changing Control Flows</li>
-<li class="fragment">Protecting Data</li>
-</ul>
-<p><img src="./images/spaghetti.jpg" alt="Convoluted Code" width="26%" height="auto%"></p>
-</section>
-<section class="slide level1">
-
-<h3 id="deobfuscation-tools">Deobfuscation Tools</h3>
-<ul>
-<li class="fragment">DotNet
-<ul>
-<li class="fragment"><a href="https://github.com/de4dot/de4dot">de4dot
-Deobfuscator and Unpacker</a></li>
-<li class="fragment"><a href="https://github.com/dnSpy/dnSpy">dnSpy
-Debugger and Assembly Editor</a></li>
-<li class="fragment"><a
-href="https://github.com/icsharpcode/ILSpy">ILSpy Decompiler instead of
-Ghidra</a></li>
-</ul></li>
+<li class="fragment">Close the string through an ending quote</li>
+<li class="fragment">Continue the query with your own SQL code</li>
 </ul>
 </section>
 <section id="the-end" class="slide level1">
 <h1>The End</h1>
+<p><img src="./images/exploits_of_a_mom.png" alt="Convoluted Code" width="50%" height="auto%"></p>
 </section>
    </div>
  </div>
--- a/introduction-to-sql-injection/sql_injection.md
+++ b/introduction-to-sql-injection/sql_injection.md
@ -47,6 +47,11 @@ sql_query =

 ## How to Exploit an SQL Injection

+* Close the string through an ending quote
+* Continue the query with your own SQL code
+
 ---

 # The End
+
+<img src="./images/exploits_of_a_mom.png" alt="Convoluted Code" width="50%" height="auto%">