Create new challenge Docker image

countries_list/Dockerfile

@@ -2,3 +2,10 @@ FROM php:8.3-apache
 COPY src/ /var/www/html/
 
 ENV FLAG=CHANGEME
+
+COPY docker/start.sh /start.sh
+COPY docker/add_flag.php /add_flag.php
+
+
+EXPOSE 80
+ENTRYPOINT ["/start.sh"]

countries_list/docker/add_flag.php

@@ -0,0 +1,12 @@
+<?php
+
+// First, connect to database
+try {
+    $db = new PDO('sqlite:/var/www/html/database.db');
+} catch (PDOException $e) {
+    echo 'Connection to database failed: ' . $e->getMessage();
+}
+
+
+$stmt = $db->prepare("INSERT INTO secret (flag) VALUES (?)");
+$stmt->execute(array(getenv("FLAG")));

countries_list/docker/start.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+echo Add flag to database
+php /add_flag.php
+
+echo Run main server
+docker-php-entrypoint apache2-foreground

countries_list/src/.htaccess

@@ -0,0 +1,3 @@
+<Files ~ "(.db)">
+   Require all denied
+</Files>