feat(docker): Deploy frontend from express

feat(xss): Add stored xss
feat(command-injection): Add command injection example
2025-05-29 15:54:19 +02:00 · 2025-05-07 16:53:48 +02:00 · 2025-04-30 16:44:19 +02:00 · 2025-04-30 16:09:32 +02:00 · 2025-04-30 15:40:43 +02:00
13 changed files with 1262 additions and 32 deletions
--- a/29
+++ b/29
@@ -0,0 +1,29 @@
+# --- Build frontend ---
+FROM node:24-slim AS frontend-builder
+WORKDIR /frontend
+COPY frontend/package*.json ./
+RUN npm install
+COPY frontend/ .
+RUN npm run build
+
+# --- Backend setup ---
+FROM node:24-slim
+
+# Install ping for backend
+RUN apt-get update && \
+    apt-get install -y iputils-ping && \
+    apt-get clean && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+# Copy backend code
+COPY backend/package*.json ./
+RUN npm install
+COPY backend/ .
+
+# Copy built frontend into backend expected location
+COPY --from=frontend-builder /frontend/dist /frontend/dist
+
+EXPOSE 5000
+
+CMD ["node", "index.js"]
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -1,5 +1,10 @@
 FROM node:23-slim

+RUN apt update && \
+    apt install -y iputils-ping \
+    && apt clean \
+    && rm -rf /var/lib/apt/lists/*
+
 WORKDIR /app
 COPY . .
 RUN npm install
--- a/backend/db.js
+++ b/backend/db.js
@@ -10,7 +10,7 @@ const connection = mysql.createConnection({
 connection.connect(err => {
  if (err) {
    console.error('DB connection failed:', err.stack);
-    return;
+    process.exit(1);
  }
  console.log('Connected to MySQL');
 });
--- a/backend/index.js
+++ b/backend/index.js
@@ -1,12 +1,15 @@
 const express = require('express');
 const mysql = require('mysql2');
 const cors = require('cors');
+const { exec } = require('child_process');
 const app = express();
+const path = require('path');

 const db = require('./db');

 app.use(cors());
 app.use(express.json());
+const serveStatic = express.static(path.join(__dirname, '../frontend/dist'));

 app.post('/api/login', (req, res) => {
  const { username, password } = req.body;
@@ -15,13 +18,78 @@ app.post('/api/login', (req, res) => {
  const query = `SELECT * FROM users WHERE username = '${username}' AND password = '${password}'`;

  db.query(query, (err, results) => {
-    if (err) return res.status(500).send('Error');
+    if (err) {
+      return res.status(500).json({
+        message: 'Error',
+        query: query
+      });
+    }
    if (results.length > 0) {
-      res.send('Login successful');
+      res.json({
+        message: 'Login successful',
+        query: query
+      });
    } else {
-      res.status(401).send('Invalid credentials');
+      res.status(401).json({
+        message: 'Invalid credentials',
+        query: query
+      });
    }
  });
 });

+app.post('/api/ping', (req, res) => {
+  const { ip } = req.body;
+
+  // 🚨 INTENTIONALLY VULNERABLE TO COMMAND INJECTION
+  const command = `ping -c 4 ${ip}`;
+  exec(command, (err, stdout, stderr) => {
+    if (err) {
+      return res.status(500).json({
+        output: stderr,
+        command: command
+      });
+    }
+    res.json({
+      output: stdout,
+      command: command
+    });
+  });
+});
+
+// Endpoint to add a new post
+app.post('/api/posts', (req, res) => {
+  const { post } = req.body;
+
+  if (!post || post.trim() === '') {
+    return res.status(400).json({ message: 'Post content cannot be empty' });
+  }
+
+  const query = 'INSERT INTO posts (content) VALUES (?)';
+  db.query(query, [post], (err, results) => {
+    if (err) {
+      return res.status(500).json({ message: 'Error adding post', error: err });
+    }
+    res.json({ message: 'Post added successfully', postId: results.insertId });
+  });
+});
+
+// Endpoint to get all posts
+app.get('/api/posts', (req, res) => {
+  const query = 'SELECT * FROM posts';
+  db.query(query, (err, results) => {
+    if (err) {
+      return res.status(500).json({ message: 'Error fetching posts', error: err });
+    }
+    res.json({ posts: results });
+  });
+});
+
+app.use((req, res, next) => {
+  if (!req.path.startsWith('/api')) {
+    return serveStatic(req, res, next);
+  }
+  next();
+});
+
 app.listen(5000, () => console.log('Backend running on port 5000'));
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -0,0 +1,945 @@
+{
+  "name": "backend",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "dependencies": {
+        "cors": "^2.8.5",
+        "express": "^5.1.0",
+        "mysql2": "^3.14.1"
+      }
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+      "license": "MIT",
+      "dependencies": {
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+        "negotiator": "^1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
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+    },
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+      "integrity": "sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw==",
+      "license": "ISC"
+    },
+    "node_modules/side-channel": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/side-channel/-/side-channel-1.1.0.tgz",
+      "integrity": "sha512-ZX99e6tRweoUXqR+VBrslhda51Nh5MTQwou5tnUDgbtyM0dBgmhEDtWGP/xbKn6hqfPRHujUNwz5fy/wbbhnpw==",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "object-inspect": "^1.13.3",
+        "side-channel-list": "^1.0.0",
+        "side-channel-map": "^1.0.1",
+        "side-channel-weakmap": "^1.0.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/side-channel-list": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/side-channel-list/-/side-channel-list-1.0.0.tgz",
+      "integrity": "sha512-FCLHtRD/gnpCiCHEiJLOwdmFP+wzCmDEkc9y7NsYxeF4u7Btsn1ZuwgwJGxImImHicJArLP4R0yX4c2KCrMrTA==",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "object-inspect": "^1.13.3"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/side-channel-map": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/side-channel-map/-/side-channel-map-1.0.1.tgz",
+      "integrity": "sha512-VCjCNfgMsby3tTdo02nbjtM/ewra6jPHmpThenkTYh8pG9ucZ/1P8So4u4FGBek/BjpOVsDCMoLA/iuBKIFXRA==",
+      "license": "MIT",
+      "dependencies": {
+        "call-bound": "^1.0.2",
+        "es-errors": "^1.3.0",
+        "get-intrinsic": "^1.2.5",
+        "object-inspect": "^1.13.3"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/side-channel-weakmap": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/side-channel-weakmap/-/side-channel-weakmap-1.0.2.tgz",
+      "integrity": "sha512-WPS/HvHQTYnHisLo9McqBHOJk2FkHO/tlpvldyrnem4aeQp4hai3gythswg6p01oSoTl58rcpiFAjF2br2Ak2A==",
+      "license": "MIT",
+      "dependencies": {
+        "call-bound": "^1.0.2",
+        "es-errors": "^1.3.0",
+        "get-intrinsic": "^1.2.5",
+        "object-inspect": "^1.13.3",
+        "side-channel-map": "^1.0.1"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/sqlstring": {
+      "version": "2.3.3",
+      "resolved": "https://registry.npmjs.org/sqlstring/-/sqlstring-2.3.3.tgz",
+      "integrity": "sha512-qC9iz2FlN7DQl3+wjwn3802RTyjCx7sDvfQEXchwa6CWOx07/WVfh91gBmQ9fahw8snwGEWU3xGzOt4tFyHLxg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/statuses": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.1.tgz",
+      "integrity": "sha512-RwNA9Z/7PrK06rYLIzFMlaF+l73iwpzsqRIFgbMLbTcLD6cOao82TaWefPXQvB2fOC4AjuYSEndS7N/mTCbkdQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/toidentifier": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz",
+      "integrity": "sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.6"
+      }
+    },
+    "node_modules/type-is": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/type-is/-/type-is-2.0.1.tgz",
+      "integrity": "sha512-OZs6gsjF4vMp32qrCbiVSkrFmXtG/AZhY3t0iAMrMBiAZyV9oALtXO8hsrHbMXF9x6L3grlFuwW2oAz7cav+Gw==",
+      "license": "MIT",
+      "dependencies": {
+        "content-type": "^1.0.5",
+        "media-typer": "^1.1.0",
+        "mime-types": "^3.0.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/unpipe": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
+      "integrity": "sha512-pjy2bYhSsufwWlKwPc+l3cN7+wuJlK6uz0YdJEOlQDbl6jo/YlPi4mb8agUkVC8BF7V8NuzeyPNqRksA3hztKQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/vary": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
+      "integrity": "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
+      "license": "ISC"
+    }
+  }
+}
--- a/backend/package.json
+++ b/backend/package.json
@@ -0,0 +1,7 @@
+{
+  "dependencies": {
+    "cors": "^2.8.5",
+    "express": "^5.1.0",
+    "mysql2": "^3.14.1"
+  }
+}
--- a/db/init.sql
+++ b/db/init.sql
@@ -4,5 +4,10 @@ CREATE TABLE users (
  password VARCHAR(255)
 );

+CREATE TABLE posts (
+  id INT AUTO_INCREMENT PRIMARY KEY,
+  content TEXT NOT NULL
+);
+
 INSERT INTO users (username, password) VALUES ('admin', 'admin123');
 INSERT INTO users (username, password) VALUES ('user', 'password');
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -8,18 +8,20 @@ services:
    ports:
      - "3306:3306"
    volumes:
-      - ./db/init.sql:/docker-entrypoint-initdb.d/init.sql
+      - ./db/init.sql:/docker-entrypoint-initdb.d/init.sql:Z
+    healthcheck:
+      test: ["CMD", "mysqladmin", "ping", "-h", "localhost"]
+      interval: 30s
+      timeout: 10s
+      retries: 3

-  backend:
-    build: ./backend
+  service:
+    build: ./
+    restart: always
    ports:
      - "5000:5000"
+    cap_add:
+      - NET_RAW
    depends_on:
-      - db
-
-  frontend:
-    build: ./frontend
-    ports:
-      - "3000:3000"
-    depends_on:
-      - backend
+      db:
+        condition: service_healthy
--- a/frontend/Dockerfile
+++ b/frontend/Dockerfile
@@ -1,4 +1,4 @@
-FROM 23-slim AS builder
+FROM node:23-slim AS builder
 WORKDIR /app
 COPY . .
 RUN npm install
--- a/frontend/src/App.jsx
+++ b/frontend/src/App.jsx
@@ -1,6 +1,8 @@
 import { BrowserRouter as Router, Route, Routes, Link } from 'react-router-dom';
 import SQLInjection from './pages/SQLInjection';
 import { Navbar, Nav, Container } from 'react-bootstrap';
+import CommandInjection from './pages/CommandInjection';
+import XSS from './pages/XSS';

 function App() {
  return (
@@ -12,6 +14,8 @@ function App() {
          <Navbar.Collapse id="basic-navbar-nav">
            <Nav className="me-auto">
              <Nav.Link as={Link} to="/sqli">SQL Injection</Nav.Link>
+              <Nav.Link as={Link} to="/cmdi">Command Injection</Nav.Link>
+              <Nav.Link as={Link} to="/xss">XSS</Nav.Link>
            </Nav>
          </Navbar.Collapse>
        </Container>
@@ -19,6 +23,8 @@ function App() {
      <div style={{ padding: 20 }}>
        <Routes>
          <Route path="/sqli" element={<SQLInjection />} />
+          <Route path="/cmdi" element={<CommandInjection />} />
+          <Route path="/xss" element={<XSS />} />
        </Routes>
      </div>
    </Router>
--- a/frontend/src/pages/CommandInjection.jsx
+++ b/frontend/src/pages/CommandInjection.jsx
@@ -0,0 +1,68 @@
+import React, { useState } from "react";
+import { Card, Container, Form, Button, Alert } from "react-bootstrap";
+
+export default function CommandInjection() {
+  const [ipAddress, setIpAddress] = useState("");
+  const [output, setOutput] = useState("");
+  const [command, setCommand] = useState("");
+  const [showCommand, setShowCommand] = useState(false);
+  const [status, setStatus] = useState(null);
+
+  const handlePing = async () => {
+    const res = await fetch("http://localhost:5000/api/ping", {
+      method: "POST",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({ ip: ipAddress }),
+    });
+    const data = await res.json();
+    setStatus(res.status);
+    setOutput(data.output);
+    setCommand(data.command);
+  };
+
+  return (
+    <Container className="mt-5">
+      <Card className="shadow">
+        <Card.Body>
+          <Card.Title className="text-center">Ping Test</Card.Title>
+          <Form>
+            <Form.Group className="mb-3" controlId="formIpAddress">
+              <Form.Control
+                type="text"
+                placeholder="Enter IP Address"
+                onChange={(e) => setIpAddress(e.target.value)}
+              />
+            </Form.Group>
+            <Form.Group className="mb-3" controlId="formShowCommand">
+              <Form.Check
+                type="checkbox"
+                label="Show command"
+                checked={showCommand}
+                onChange={(e) => setShowCommand(e.target.checked)}
+              />
+            </Form.Group>
+            <div className="d-grid">
+              <Button variant="primary" onClick={handlePing}>
+                Ping
+              </Button>
+            </div>
+          </Form>
+          {output && (
+            <Alert
+              className={`mt-3 ${
+                status === 200 ? "alert-success" : "alert-warning"
+              }`}
+            >
+              <strong>Output:</strong> {output}
+            </Alert>
+          )}
+          {showCommand && command && (
+            <Alert className="mt-3 info">
+              <strong>Command:</strong> {command}
+            </Alert>
+          )}
+        </Card.Body>
+      </Card>
+    </Container>
+  );
+}
--- a/frontend/src/pages/SQLInjection.jsx
+++ b/frontend/src/pages/SQLInjection.jsx
@@ -1,20 +1,24 @@
-import React, { useState } from 'react';
-import { Card, Container, Form, Button, Alert } from 'react-bootstrap';
+import React, { useState } from "react";
+import { Card, Container, Form, Button, Alert } from "react-bootstrap";

 export default function SQLInjection() {
-  const [username, setUsername] = useState('');
-  const [password, setPassword] = useState('');
-  const [msg, setMsg] = useState('');
+  const [username, setUsername] = useState("");
+  const [password, setPassword] = useState("");
+  const [msg, setMsg] = useState("");
+  const [status, setStatus] = useState(null);
+  const [query, setQuery] = useState("");
+  const [showQuery, setShowQuery] = useState(false);

  const handleLogin = async () => {
-    const res = await fetch('http://localhost:5000/api/login', {
-      method: 'POST',
-      headers: { 'Content-Type': 'application/json' },
-      body: JSON.stringify({ username, password })
+    const res = await fetch("http://localhost:5000/api/login", {
+      method: "POST",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({ username, password }),
    });
-
-    const text = await res.text();
-    setMsg(text);
+    const data = await res.json();
+    setStatus(res.status);
+    setMsg(data.message);
+    setQuery(data.query);
  };

  return (
@@ -30,14 +34,22 @@ export default function SQLInjection() {
              <Form.Control
                type="text"
                placeholder="Username"
-                onChange={e => setUsername(e.target.value)}
+                onChange={(e) => setUsername(e.target.value)}
              />
            </Form.Group>
            <Form.Group className="mb-3" controlId="formPassword">
              <Form.Control
                type="password"
                placeholder="Password"
-                onChange={e => setPassword(e.target.value)}
+                onChange={(e) => setPassword(e.target.value)}
+              />
+            </Form.Group>
+            <Form.Group className="mb-3" controlId="formShowQuery">
+              <Form.Check
+                type="checkbox"
+                label="Show query"
+                checked={showQuery}
+                onChange={(e) => setShowQuery(e.target.checked)}
              />
            </Form.Group>
            <div className="d-grid">
@@ -47,12 +59,21 @@ export default function SQLInjection() {
            </div>
          </Form>
          {msg && (
-            <Alert className="mt-3" variant="info">
+            <Alert
+              className={`mt-3 ${
+                status === 200 ? "alert-success" : "alert-warning"
+              }`}
+            >
              {msg}
            </Alert>
          )}
+          {showQuery && query && (
+            <Alert className="mt-3 info">
+              <strong>Query:</strong> {query}
+            </Alert>
+          )}
        </Card.Body>
      </Card>
    </Container>
  );
-}
+}
--- a/frontend/src/pages/XSS.jsx
+++ b/frontend/src/pages/XSS.jsx
@@ -0,0 +1,74 @@
+import React, { useState } from "react";
+import { Card, Container, Form, Button, Alert, ListGroup } from "react-bootstrap";
+
+export default function XSS() {
+  const [posts, setPosts] = useState([]);
+  const [newPost, setNewPost] = useState("");
+  const [searchQuery, setSearchQuery] = useState("");
+
+  const handleAddPost = () => {
+    if (newPost.trim()) {
+      setPosts([...posts, newPost]);
+      setNewPost("");
+    }
+  };
+
+  const filteredPosts = posts.filter((post) =>
+    post.toLowerCase().includes(searchQuery.toLowerCase())
+  );
+
+  return (
+    <Container className="mt-5">
+      <Card className="shadow">
+        <Card.Body>
+          <Card.Title className="text-center">Posts</Card.Title>
+
+          {/* List of Posts */}
+          <h5>Posts</h5>
+          <ListGroup className="mb-3">
+            {filteredPosts.length > 0 ? (
+              filteredPosts.map((post, index) => (
+                <ListGroup.Item key={index}>
+                  {/* Rendering posts directly (stored XSS vulnerability) */}
+                  <span dangerouslySetInnerHTML={{ __html: post }} />
+                </ListGroup.Item>
+              ))
+            ) : (
+              <ListGroup.Item>No posts available</ListGroup.Item>
+            )}
+          </ListGroup>
+
+          {/* Add New Post */}
+          <Form>
+            <Form.Group className="mb-3" controlId="formNewPost">
+              <Form.Control
+                type="text"
+                placeholder="Enter new post"
+                value={newPost}
+                onChange={(e) => setNewPost(e.target.value)}
+              />
+            </Form.Group>
+            <div className="d-grid">
+              <Button variant="primary" onClick={handleAddPost}>
+                Add Post
+              </Button>
+            </div>
+          </Form>
+
+          {/* Search Functionality */}
+          <h5 className="mt-4">Search</h5>
+          <Form>
+            <Form.Group className="mb-3" controlId="formSearchQuery">
+              <Form.Control
+                type="text"
+                placeholder="Enter search query"
+                value={searchQuery}
+                onChange={(e) => setSearchQuery(e.target.value)}
+              />
+            </Form.Group>
+          </Form>
+        </Card.Body>
+      </Card>
+    </Container>
+  );
+}
Author	SHA1	Message	Date
Matte23	58fc2f7acf	feat(docker): Deploy frontend from express	2025-05-29 15:54:19 +02:00
Matte23	98fdc290f4	feat(xss): Add stored xss	2025-05-07 16:53:48 +02:00
Matte23	f29d3627e9	feat(command-injection): Add command injection example	2025-04-30 16:44:19 +02:00
Matte23	88ab0711bb	feat(sqli): Add show query	2025-04-30 16:09:32 +02:00
Matte23	56b4d06db8	fix(docker): Add missing dependencies for backend and add healthcheck for docker	2025-04-30 15:40:43 +02:00