Communication Authenticity, Mitigation M0802 - ICS

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More details about tickets and our CFP can be found <a href='https://na.eventscloud.com/attackcon6'>here</a> </div> </div> </div> <div class="row flex-grow-1 flex-shrink-0">   <div class="sidebar nav sticky-top flex-column pr-0 pt-4 pb-3 pl-3" id="v-tab" role="tablist" aria-orientation="vertical"> <div class="resizer" id="resizer"></div>  <div id="sidebars"></div>  </div> <div class="tab-content col-xl-9 pt-4" id="v-tabContent"> <div class="tab-pane fade show active" id="v-attckmatrix" role="tabpanel" aria-labelledby="v-attckmatrix-tab"> <ol class="breadcrumb"> <li class="breadcrumb-item"><a href="/versions/v16/">Home</a></li> <li class="breadcrumb-item"><a href="/versions/v16/mitigations">Mitigations</a></li> <li class="breadcrumb-item">Communication Authenticity</li> </ol> <div class="tab-pane fade show active" id="v-" role="tabpanel" aria-labelledby="v--tab"></div> <div class="row"> <div class="col-xl-12"> <div class="jumbotron jumbotron-fluid"> <div class="container-fluid"> <h1> Communication Authenticity </h1> <div class="row"> <div class="col-md-8"> <div class="description-body"> <p>When communicating over an untrusted network, utilize secure network protocols that both authenticate the message sender and can verify its integrity. This can be done either through message authentication codes (MACs) or digital signatures, to detect spoofed network messages and unauthorized connections.</p> </div> </div> <div class="col-md-4"> <div class="card"> <div class="card-body"> <div class="card-data"><span class="h5 card-title">ID:</span> M0802</div> <div class="card-data"> <span class="h5 card-title">Security Controls: </span>IEC 62443-3-3:2013 - SR 3.1, IEC 62443-4-2:2019 - CR 3.1, NIST SP 800-53 Rev. 5 - SC-8; SC-23 </div> <div class="card-data"><span class="h5 card-title">Version:</span> 1.0</div> <div class="card-data"><span class="h5 card-title">Created: </span>11 September 2020</div> <div class="card-data"><span class="h5 card-title">Last Modified: </span>19 September 2023</div> </div> </div> <div class="text-center pt-2 version-button permalink"> <div class="live"> <a data-toggle="tooltip" data-placement="bottom" title="Permalink to this version of M0802" href="/versions/v16/mitigations/M0802/" data-test-ignore="true">Version Permalink</a> </div> <div class="permalink"> <a data-toggle="tooltip" data-placement="bottom" title="Go to the live version of M0802" href="/mitigations/M0802/" data-test-ignore="true">Live Version</a> </div> </div> </div> </div>  <div class="dropdown h3 mt-3 float-right"> <button class="btn btn-navy dropdown-toggle" type="button" id="dropdownMenuButton" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> <b>ATT&CK<sup>®</sup> Navigator Layers</b> </button> <div class="dropdown-menu" aria-labelledby="dropdownMenuButton"> <h6 class="dropdown-header">ICS Layer</h6> <a class="dropdown-item" href="/versions/v16/mitigations/M0802/M0802-ics-layer.json" download target="_blank">download</a>  <a class="dropdown-item" href="#" id="view-layer-on-navigator-ics" target="_blank">view <img width="10" src="/versions/v16/theme/images/external-site-dark.jpeg"></a> <script src="/versions/v16/theme/scripts/settings.js"></script> <script> if (window.location.protocol == "https:") { //view on navigator only works when this site is hosted on HTTPS var layerURL = window.location.protocol + "//" + window.location.host + base_url + "mitigations/M0802/M0802-ics-layer.json"; document.getElementById("view-layer-on-navigator-ics").href = "https://mitre-attack.github.io/attack-navigator//#layerURL=" + encodeURIComponent(layerURL); } else { //hide button document.getElementById("view-layer-on-navigator-ics").classList.add("d-none"); } </script> </div> </div>  <h2 class="pt-3 mb-2" id="techniques">Techniques Addressed by Mitigation</h2> <div class="tables-mobile"> <table class="table techniques-used background table-bordered"> <thead> <tr> <th class="p-2" scope="col">Domain</th> <th class="p-2" colspan="2">ID</th> <th class="p-2" scope="col">Name</th> <th class="p-2" scope="col">Use</th> </tr> </thead> <tbody> <tr class="technique ics" id="ics"> <td> ICS </td> <td colspan="2"> <a href="/versions/v16/techniques/T0800">T0800</a> </td> <td> <a href="/versions/v16/techniques/T0800">Activate Firmware Update Mode</a> </td> <td> <p>Protocols used for device management should authenticate all network messages to prevent unauthorized system changes.</p> </td> </tr> <tr class="technique ics" id="ics"> <td> ICS </td> <td colspan="2"> <a href="/versions/v16/techniques/T0830">T0830</a> </td> <td> <a href="/versions/v16/techniques/T0830">Adversary-in-the-Middle</a> </td> <td> <p>Communication authenticity will ensure that any messages tampered with through AiTM can be detected, but cannot prevent eavesdropping on these. In addition, providing communication authenticity around various discovery protocols, such as DNS, can be used to prevent various AiTM procedures.</p> </td> </tr> <tr class="technique ics" id="ics"> <td> ICS </td> <td colspan="2"> <a href="/versions/v16/techniques/T0858">T0858</a> </td> <td> <a href="/versions/v16/techniques/T0858">Change Operating Mode</a> </td> <td> <p>Protocols used for device management should authenticate all network messages to prevent unauthorized system changes.</p> </td> </tr> <tr class="technique ics" id="ics"> <td> ICS </td> <td colspan="2"> <a href="/versions/v16/techniques/T0868">T0868</a> </td> <td> <a href="/versions/v16/techniques/T0868">Detect Operating Mode</a> </td> <td> <p>Protocols used for control functions should provide authenticity through MAC functions or digital signatures. If not, utilize bump-in-the-wire devices or VPNs to enforce communication authenticity between devices that are not capable of supporting this (e.g., legacy controllers, RTUs).</p> </td> </tr> <tr class="technique ics" id="ics"> <td> ICS </td> <td colspan="2"> <a href="/versions/v16/techniques/T0816">T0816</a> </td> <td> <a href="/versions/v16/techniques/T0816">Device Restart/Shutdown</a> </td> <td> <p>Protocols used for control functions should provide authenticity through MAC functions or digital signatures. If not, utilize bump-in-the-wire devices or VPNs to enforce communication authenticity between devices that are not capable of supporting this (e.g., legacy controllers, RTUs).</p> </td> </tr> <tr class="technique ics" id="ics"> <td> ICS </td> <td colspan="2"> <a href="/versions/v16/techniques/T0831">T0831</a> </td> <td> <a href="/versions/v16/techniques/T0831">Manipulation of Control</a> </td> <td> <p>Protocols used for control functions should provide authenticity through MAC functions or digital signatures. If not, utilize bump-in-the-wire devices or VPNs to enforce communication authenticity between devices that are not capable of supporting this (e.g., legacy controllers, RTUs).</p> </td> </tr> <tr class="technique ics" id="ics"> <td> ICS </td> <td colspan="2"> <a href="/versions/v16/techniques/T0832">T0832</a> </td> <td> <a href="/versions/v16/techniques/T0832">Manipulation of View</a> </td> <td> <p>Protocols used for control functions should provide authenticity through MAC functions or digital signatures. If not, utilize bump-in-the-wire devices or VPNs to enforce communication authenticity between devices that are not capable of supporting this (e.g., legacy controllers, RTUs).</p> </td> </tr> <tr class="technique ics" id="ics"> <td> ICS </td> <td colspan="2"> <a href="/versions/v16/techniques/T0839">T0839</a> </td> <td> <a href="/versions/v16/techniques/T0839">Module Firmware</a> </td> <td> <p>Protocols used for device management should authenticate all network messages to prevent unauthorized system changes.</p> </td> </tr> <tr class="technique ics" id="ics"> <td> ICS </td> <td colspan="2"> <a href="/versions/v16/techniques/T0861">T0861</a> </td> <td> <a href="/versions/v16/techniques/T0861">Point & Tag Identification</a> </td> <td> <p>Protocols used for control functions should provide authenticity through MAC functions or digital signatures. If not, utilize bump-in-the-wire devices or VPNs to enforce communication authenticity between devices that are not capable of supporting this (e.g., legacy controllers, RTUs).</p> </td> </tr> <tr class="technique ics" id="ics"> <td> ICS </td> <td colspan="2"> <a href="/versions/v16/techniques/T0843">T0843</a> </td> <td> <a href="/versions/v16/techniques/T0843">Program Download</a> </td> <td> <p>Protocols used for device management should authenticate all network messages to prevent unauthorized system changes.</p> </td> </tr> <tr class="technique ics" id="ics"> <td> ICS </td> <td colspan="2"> <a href="/versions/v16/techniques/T0845">T0845</a> </td> <td> <a href="/versions/v16/techniques/T0845">Program Upload</a> </td> <td> <p>Protocols used for device management should authenticate all network messages to prevent unauthorized system changes.</p> </td> </tr> <tr class="technique ics" id="ics"> <td> ICS </td> <td colspan="2"> <a href="/versions/v16/techniques/T0848">T0848</a> </td> <td> <a href="/versions/v16/techniques/T0848">Rogue Master</a> </td> <td> <p>Protocols used for control functions should provide authenticity through MAC functions or digital signatures. If not, utilize bump-in-the-wire devices or VPNs to enforce communication authenticity between devices that are not capable of supporting this (e.g., legacy controllers, RTUs).</p> </td> </tr> <tr class="technique ics" id="ics"> <td> ICS </td> <td colspan="2"> <a href="/versions/v16/techniques/T0856">T0856</a> </td> <td> <a href="/versions/v16/techniques/T0856">Spoof Reporting Message</a> </td> <td> <p>Protocols used for control functions should provide authenticity through MAC functions or digital signatures. If not, utilize bump-in-the-wire devices or VPNs to enforce communication authenticity between devices that are not capable of supporting this (e.g., legacy controllers, RTUs).</p> </td> </tr> <tr class="technique ics" id="ics"> <td> ICS </td> <td colspan="2"> <a href="/versions/v16/techniques/T0857">T0857</a> </td> <td> <a href="/versions/v16/techniques/T0857">System Firmware</a> </td> <td> <p>Protocols used for device management should authenticate all network messages to prevent unauthorized system changes.</p> </td> </tr> <tr class="technique ics" id="ics"> <td> ICS </td> <td colspan="2"> <a href="/versions/v16/techniques/T0855">T0855</a> </td> <td> <a href="/versions/v16/techniques/T0855">Unauthorized Command Message</a> </td> <td> <p>Protocols used for control functions should provide authenticity through MAC functions or digital signatures. If not, utilize bump-in-the-wire devices or VPNs to enforce communication authenticity between devices that are not capable of supporting this (e.g., legacy controllers, RTUs).</p> </td> </tr> <tr class="technique ics" id="ics"> <td> ICS </td> <td colspan="2"> <a href="/versions/v16/techniques/T0860">T0860</a> </td> <td> <a href="/versions/v16/techniques/T0860">Wireless Compromise</a> </td> <td> <p>Do not inherently rely on the authenticity provided by the network/link layer (e.g., 802.11, LTE, 802.15.4), as link layer equipment may have long lifespans and protocol vulnerabilities may not be easily patched. Provide defense-in-depth by implementing authenticity within the associated application-layer protocol, or through a network-layer VPN. <span onclick=scrollToRef('scite-1') id="scite-ref-1-a" class="scite-citeref-number" title="CISA 2010, March 11 https://us-cert.cisa.gov/ncas/tips/ST05-003 Retrieved. 2020/09/25 "data-reference="CISA March 2010"><sup><a href="https://us-cert.cisa.gov/ncas/tips/ST05-003" target="_blank" data-hasqtip="0" aria-describedby="qtip-0">[1]</a></sup></span> Furthermore, ensure communication schemes provide strong replay protection, employing techniques such as timestamps or cryptographic nonces.</p> </td> </tr> </tbody> </table> </div> <h2 class="pt-3" id="references">References</h2> <div class="row"> <div class="col"> <ol> <li> <span id="scite-1" class="scite-citation"> <span class="scite-citation-text"> <a rel="nofollow" class="external text" name="scite-1" href="https://us-cert.cisa.gov/ncas/tips/ST05-003" target="_blank"> CISA 2010, March 11 https://us-cert.cisa.gov/ncas/tips/ST05-003 Retrieved. 2020/09/25 </a> </span> </span> </li> </ol> </div> <div class="col"> </div> </div> </div> </div> </div> </div> </div> </div>   <div class="overlay search" id="search-overlay" style="display: none;"> <div class="overlay-inner">  <div class="search-header"> <div class="search-input"> <input type="text" id="search-input" placeholder="search"> </div> <div class="search-icons"> <div class="search-parsing-icon spinner-border" style="display: none" id="search-parsing-icon"></div> <div class="close-search-icon" id="close-search-icon">×</div> </div> </div>  <div id="search-body" class="search-body"> <div class="results" id="search-results">  </div> <div id="load-more-results" class="load-more-results"> <button class="btn btn-default" id="load-more-results-button">load more results</button> </div> </div> </div> </div> </div> <div class="row flex-grow-0 flex-shrink-1">  <footer class="col footer"> <div class="container-fluid"> <div class="row row-footer"> <div class="col-2 col-sm-2 col-md-2"> <div class="footer-center-responsive my-auto"> <a href="https://www.mitre.org" target="_blank" rel="noopener" aria-label="MITRE"> <img src="/versions/v16/theme/images/mitrelogowhiteontrans.gif" class="mitre-logo-wtrans"> </a> </div> </div> <div class="col-2 col-sm-2 footer-responsive-break"></div> <div class="footer-link-group"> <div class="row row-footer"> <div class="px-3 col-footer"> <u class="footer-link"><a href="/versions/v16/resources/engage-with-attack/contact" class="footer-link">Contact Us</a></u> </div> <div class="px-3 col-footer"> <u class="footer-link"><a href="/versions/v16/resources/legal-and-branding/terms-of-use" class="footer-link">Terms of Use</a></u> </div> <div class="px-3 col-footer"> <u class="footer-link"><a href="/versions/v16/resources/legal-and-branding/privacy" class="footer-link">Privacy Policy</a></u> </div> <div class="px-3"> <u class="footer-link"><a href="/versions/v16/resources/changelog.html" class="footer-link" data-toggle="tooltip" data-placement="top" data-html="true" title="ATT&CK content v16.1Website v4.2.1">Website Changelog</a></u> </div> </div> <div class="row"> <small class="px-3"> © 2015 - 2024, The MITRE Corporation. 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Communication Authenticity, Mitigation M0802 - ICS | MITRE ATT&CK®