brief_case.xml

<?xml version="1.0"?>

<scenario xmlns="http://www.github/cliffe/SecGen/scenario"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://www.github/cliffe/SecGen/scenario">

  <name>A Brief Case (of murder)</name>
  <author>Thomas Shaw</author>
  <description>Single system CLI narrative-based CTF challenge.
    The murder was solved quickly. It was a briefcase.
  </description>

  <type>ctf</type>
  <type>attack-ctf</type>
  <type>web-hints</type>
  <difficulty>intermediate</difficulty>

  <CyBOK KA="AAA" topic="Authorisation">
    <keyword>access control</keyword>
    <keyword>Elevated privileges</keyword>
    <keyword>Real and effective identity</keyword>
    <keyword>Vulnerabilities and attacks on access control misconfigurations</keyword>
  </CyBOK>
  <CyBOK KA="OSV" topic="Primitives for Isolation and Mediation">
    <keyword>Access controls and operating systems</keyword>
    <keyword>Linux security model</keyword>
    <keyword>Unix File Permissions</keyword>
    <keyword>setuid/setgid</keyword>
  </CyBOK>
  <CyBOK KA="WAM" topic="Fundamental Concepts and Approaches">
    <keyword>authentication</keyword>
    <keyword>cookies</keyword>
    <keyword>passwords and alternatives</keyword>
    <keyword>JAVASCRIPT / HYPERTEXT MARKUP LANGUAGE (HTML) / CASCADING STYLE SHEETS (CSS) / HYPERTEXT TRANSFER PROTOCOL (HTTP)
    COOKIES</keyword>
    <keyword>Broken Access Control / Insecure Direct Object References</keyword>
  </CyBOK>
  <CyBOK KA="WAM" topic="Server-Side Vulnerabilities and Mitigations">
    <keyword>injection vulnerabilities</keyword>
    <keyword>server-side misconfiguration and vulnerable components</keyword>
    <keyword>CROSS-SITE SCRIPTING (XSS)</keyword>
    <keyword>COMMAND INJECTION</keyword>
    <keyword>SQL-INJECTION</keyword>
  </CyBOK>
  <CyBOK KA="SS" topic="Categories of Vulnerabilities">
    <keyword>Web vulnerabilities / OWASP Top 10</keyword>
  </CyBOK>

  <system>
    <system_name>target_server</system_name>
    <base distro="Debian 9" platform="linux" type="server"/>

    <input into_datastore="IP_addresses">
      <value>172.10.0.2</value>
      <value>172.10.0.3</value>
    </input>

    <input into_datastore="accounts">
      <!-- [0]: Entry account -->
      <generator type="account">
        <input into="leaked_filenames">
          <value>missing_persons_report</value>
        </input>
        <input into="strings_to_leak">
          <value>*** Missing Persons Report ***</value>
          <value>Two individuals are missing. No names or dates attached to the report.</value>
          <value>If you can find out who has gone missing and when, you will be rewarded for your efforts.</value>
          <value>Enter their names in the format flag{Firstname Lastname YYYY-MM-DD HH:MM:SS}</value>
          <value>If you find any more evidence, such as the name of a suspect, use the format flag{Firstname Lastname}</value>
        </input>
        <input into="password">
          <generator type="medium_password_generator"/>
        </input>
      </generator>

      <!-- [1]: Passwordless account -->
      <generator type="account">
        <input into="password">
          <value/>
        </input>
        <input into="strings_to_leak">
          <generator type="flag_generator"/>
        </input>
      </generator>

      <!-- [2]: Third account accessible through vulnerability exploitation -->
      <generator type="account">
        <input into="strings_to_leak">
          <value/>
        </input>
      </generator>
    </input>

    <!-- Create @person's for user2 and user3 and the 3 other store_person db entries -->
    <input into_datastore="people">
      <!-- [0]: User 2-->
      <generator type="person">
        <input into="account">
          <datastore access="1">accounts</datastore>
        </input>
      </generator>
      <!-- [1]: User 3 -->
      <generator type="person">
        <input into="account">
          <datastore access="2">accounts</datastore>
        </input>
      </generator>
      <!-- [2]: Store User 1 -->
      <generator type="person"/>
      <!-- [3]: Store User 2 -->
      <generator type="person"/>
      <!-- [4]: Store User 3 -->
      <generator type="person"/>
    </input>

    <!-- Web Store data: dealer, murderer, victims and timestamps -->
    <input into_datastore="store_domain">
      <value>dangerous_store.co.uk</value>
    </input>

    <input into_datastore="dealer_id">
      <encoder type="string_selector">
        <input into="strings_to_encode">
          <value>3</value>
          <value>4</value>
          <value>5</value>
        </input>
      </encoder>
    </input>

    <input into_datastore="murderer_id">
      <encoder type="string_selector">
        <input into="strings_to_encode">
          <value>2</value>
          <value>3</value>
          <value>4</value>
          <value>5</value>
        </input>
      </encoder>
    </input>

    <input into_datastore="murderer">
      <encoder type="string_selector">
        <input into="strings_to_encode">
          <datastore access="0">people</datastore>
          <datastore access="1">people</datastore>
          <datastore access="2">people</datastore>
          <datastore access="3">people</datastore>
          <datastore access="4">people</datastore>
        </input>
        <input into="position">
          <datastore>murderer_id</datastore>
        </input>
      </encoder>
    </input>

    <input into_datastore="murdered_ids">
      <encoder type="string_selector_with_exclusions">
        <input into="exclusion_list">
          <datastore>murderer_id</datastore>
          <datastore>dealer_id</datastore>
        </input>
        <input into="strings_to_encode">
          <value>2</value>
          <value>3</value>
          <value>4</value>
          <value>5</value>
        </input>
      </encoder>
      <encoder type="string_selector_with_exclusions">
        <input into="exclusion_list">
          <datastore>murderer_id</datastore>
          <datastore>dealer_id</datastore>
          <datastore>murdered_ids</datastore>
        </input>
        <input into="strings_to_encode">
          <value>2</value>
          <value>3</value>
          <value>4</value>
          <value>5</value>
        </input>
      </encoder>
    </input>

    <input into_datastore="murdered_names">
      <encoder type="string_selector">
        <input into="strings_to_encode">
          <datastore access="0" access_json="['name']">people</datastore>
          <datastore access="1" access_json="['name']">people</datastore>
          <datastore access="2" access_json="['name']">people</datastore>
          <datastore access="3" access_json="['name']">people</datastore>
          <datastore access="4" access_json="['name']">people</datastore>
        </input>
        <input into="position">
          <datastore access="0">murdered_ids</datastore>
        </input>
      </encoder>
      <encoder type="string_selector">
        <input into="strings_to_encode">
          <datastore access="0" access_json="['name']">people</datastore>
          <datastore access="1" access_json="['name']">people</datastore>
          <datastore access="2" access_json="['name']">people</datastore>
          <datastore access="3" access_json="['name']">people</datastore>
          <datastore access="4" access_json="['name']">people</datastore>
        </input>
        <input into="position">
          <datastore access="1">murdered_ids</datastore>
        </input>
      </encoder>
    </input>

    <input into_datastore="murder_timestamps">
      <generator type="date_generator">
        <input into="format">
          <value>mysql_datetime</value>
        </input>
      </generator>
      <generator type="date_generator">
        <input into="format">
          <value>mysql_datetime</value>
        </input>
      </generator>
    </input>

    <!-- Murder flags: 1x murderer, 2x murdered w/ timestamp -->
    <input into="murderer_flag">
      <generator type="concat_flag.*">
        <input into="strings_to_join">
          <datastore access_json="['name']">murderer</datastore>
        </input>
      </generator>
    </input>
    <input into="murdered_flags">
      <generator type="concat_flag.*">
        <input into="strings_to_join">
          <datastore access="0">murdered_names</datastore>
          <datastore access="0">murder_timestamps</datastore>
        </input>
      </generator>
      <generator type="concat_flag.*">
        <input into="strings_to_join">
          <datastore access="1">murdered_names</datastore>
          <datastore access="1">murder_timestamps</datastore>
        </input>
      </generator>
    </input>


    <!-- Scenario Modules -->
    <utility module_path=".*/parameterised_accounts">
      <input into="accounts">
        <datastore access="0">accounts</datastore>
      </input>
    </utility>

    <vulnerability module_path=".*/hidden_file">
      <input into="account">
        <datastore access="0">accounts</datastore>
      </input>
      <input into="strings_to_leak">
        <generator type="flag_generator"/>
        <value>Make a note of the technique used to solve this challenge as it will come in handy again soon.</value>
      </input>
    </vulnerability>

    <vulnerability module_path=".*/passwordless_user_account.*">
      <input into="accounts">
        <datastore access="1">accounts</datastore>
      </input>
    </vulnerability>

    <service name="Random Parameterised Website">
      <input into="theme">
        <value>journal.min.css</value>
      </input>
      <input into="main_page_paragraph_content">
        <generator type="html_snippet_generator">
          <input into="heading">
            <value>We need your help!</value>
          </input>
          <input into="paragraphs" unique_module_list="unique_encoders">
            <value>You have received a strange message. Can you decode it to read the contents?</value>
            <!--<encoder type="string_encoder">-->
            <encoder type="caesar_cipher">
              <input into="strings_to_encode">
                <value>Log into the server and check your mail.</value>
                <value>Here's a flag for your efforts.</value>
                <generator type="flag_generator"/>
                <generator type="concat_paragraph">
                  <input into="data">
                    <value>Username:</value>
                    <datastore access="0" access_json="['username']">accounts</datastore>
                  </input>
                </generator>
                <generator type="concat_paragraph">
                  <input into="data">
                    <value>Password:</value>
                    <datastore access="0" access_json="['password']">accounts</datastore>
                  </input>
                </generator>
              </input>
            </encoder>
          </input>
        </generator>
      </input>

      <input into="strings_to_leak">
        <generator type="flag_generator"/>
        <value>&lt;a href="oops.html"/&gt;</value>
      </input>

      <input into="additional_page_filenames">
        <value>oops.html</value>
      </input>

      <input into="additional_pages">
        <generator type="html_snippet_generator">
          <input into="heading">
            <value/>
          </input>
          <input into="paragraphs">
            <generator type="flag_generator"/>
          </input>
        </generator>
      </input>

      <input into="white_text">
        <generator type="flag_generator"/>
      </input>

      <input into="visible_tabs">
        <value/>
      </input>
      <input into="images_to_leak">
        <value/>
      </input>

      <input into="organisation">
        <value/>
      </input>
    </service>

    <utility module_path=".*/system/mail.*">
      <input into="mail">
        <generator type="mail_message">
          <input into="sender_user">
            <value>detective_jones</value>
          </input>
          <input into="sender_domain">
            <value>police.gov.uk</value>
          </input>
          <input into="recipient_user">
            <datastore access="0" access_json="['username']">accounts</datastore>
          </input>
          <input into="subject">
            <value>Investigation Information</value>
          </input>
          <input into="content">
            <value>To whom this may concern,</value>
            <value>Now that you're on the server, we need your help with our investigation.</value>
            <value>We've managed to hide this account on the server for you. Criminal activity has been taking place, particularly over port 1337.</value>
            <value>Our initial examinations lead us to believe that the perpetrators use poor security practices.</value>
            <value>Find out if the suspects have user accounts on this server and see if you can break in.</value>
            <value>We need all the evidence we can get. In the form of flags. The more you collect the stronger our case will be.</value>
            <value>Godspeed,</value>
            <value>Detective Jones.</value>
          </input>
          <input into="sent_datetime">
            <generator type="date_generator">
              <input into="date">
                <value>12/06/2017 14:51:03</value>
              </input>
              <input into="format">
                <value>mail</value>
              </input>
            </generator>
          </input>
        </generator>

        <generator type="mail_message">
          <input into="sender_user">
            <datastore access="2" access_json="['username']">accounts</datastore>
          </input>
          <input into="sender_domain">
            <datastore>store_domain</datastore>
          </input>
          <input into="recipient_user">
            <datastore access="1" access_json="['username']">accounts</datastore>
          </input>
          <input into="subject">
            <value>New order required</value>
          </input>
          <input into="content">
            <value>Good news, I've been getting rid of loads of gear lately. The customers are mad for it.</value>
            <value>We're going to need a new order ASAP!</value>
          </input>
          <input into="sent_datetime">
            <generator type="date_generator">
              <input into="date">
                <value>17/06/2017 20:12:35</value>
              </input>
              <input into="format">
                <value>mail</value>
              </input>
            </generator>
          </input>
        </generator>

        <generator type="mail_message">
          <input into="sender_user">
            <datastore access="0" access_json="['username']">murderer</datastore>
          </input>
          <input into="sender_domain">
            <datastore>store_domain</datastore>
          </input>
          <input into="recipient_user">
            <datastore access="2" access_json="['username']">accounts</datastore>
          </input>
          <input into="subject">
            <value>Offed the last one</value>
          </input>
          <input into="content">
            <value>Job done! The last one on the list is now swimming with the fishes.</value>
            <value>It wasn't clean though, I think I saw someone watching in the distance.</value>
            <value>Not that it matters. They'll never catch us!</value>
          </input>
          <input into="sent_datetime">
            <generator type="date_generator">
              <input into="date">
                <value>19/06/2017 23:58:12</value>
              </input>
              <input into="format">
                <value>mail</value>
              </input>
            </generator>
          </input>
        </generator>
      </input>
    </utility>

    <!-- Account 3 vulnerability-->
    <vulnerability module_path=".*/ssh_leaked_keys">
      <input into="accounts">
        <datastore access="2">accounts</datastore>
      </input>
    </vulnerability>

    <vulnerability module_path=".*/onlinestore.*">
      <input into="port">
        <value>1337</value>
      </input>
      <input into="domain">
        <datastore>store_domain</datastore>
      </input>
      <input into="accounts">
        <datastore>people</datastore>
      </input>
      <input into="dealer_id">
        <datastore>dealer_id</datastore>
      </input>
      <input into="murderer_id">
        <datastore>murderer_id</datastore>
      </input>
      <input into="murdered_on">
        <datastore>murder_timestamps</datastore>
      </input>
      <input into="murdered_ids">
        <datastore>murdered_ids</datastore>
      </input>
    </vulnerability>

    <network type="private_network">
      <input into="IP_address">
        <datastore access="0">IP_addresses</datastore>
      </input>
    </network>

    <build type="cleanup">
      <input into="root_password">
        <generator type="strong_password_generator"/>
      </input>
    </build>
  </system>

  <system>
    <system_name>attack_vm</system_name>
    <base distro="Kali" name="MSF"/>

    <utility module_path=".*/iceweasel">
      <input into="accounts">
        <value>{"username":"root","password":"toor","super_user":"","strings_to_leak":[],"leaked_filenames":[]}</value>
      </input>
      <input into="autostart">
        <value>true</value>
      </input>
      <input into="start_page">
        <datastore access="0">IP_addresses</datastore>
      </input>
    </utility>

    <utility module_path=".*/kali_top10"/>
    <network type="private_network">
      <input into="IP_address">
        <datastore access="1">IP_addresses</datastore>
      </input>
    </network>
  </system>

</scenario>