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<!DOCTYPE html> <html lang="en-us" xml:lang="en-us"> <head><script type="text/javascript" src="/_static/js/bundle-playback.js?v=HxkREWBo" charset="utf-8"></script> <script type="text/javascript" src="/_static/js/wombat.js?v=txqj7nKC" charset="utf-8"></script> <script>window.RufflePlayer=window.RufflePlayer||{};window.RufflePlayer.config={"autoplay":"on","unmuteOverlay":"hidden"};</script> <script type="text/javascript" src="/_static/js/ruffle/ruffle.js"></script> <script type="text/javascript"> __wm.init("https://web.archive.org/web"); __wm.wombat("https://csrc.nist.gov/pubs/itlb/2014/10/release-of-nist-sp-800147b-bios-protection-guideli/final","20231112072913","https://web.archive.org/","web","/_static/", "1699774153"); </script> <link rel="stylesheet" type="text/css" href="/_static/css/banner-styles.css?v=S1zqJCYt" /> <link rel="stylesheet" type="text/css" href="/_static/css/iconochive.css?v=3PDvdIFv" />  <meta charset="utf-8"/> <title> | CSRC</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"/> <meta http-equiv="content-style-type" content="text/css"/> <meta http-equiv="content-script-type" content="text/javascript"/> <meta name="viewport" content="width=device-width, initial-scale=1.0"/> <meta name="msapplication-config" content="/CSRC/Media/images/favicons/browserconfig.xml"/> <meta name="theme-color" content="#000000"/> <meta name="google-site-verification" content="xbrnrVYDgLD-Bd64xHLCt4XsPXzUhQ-4lGMj4TdUUTA"/> <meta description="Modern computers rely on fundamental system firmware, commonly known as the Basic Input/Output System (BIOS), to enable system components to communicate and work together. The BIOS is typically developed by both original equipment manufacturers (OEMs) and independent BIOS vendors. Manufacturers frequently update system firmware to fix bugs, patch vulnerabilities, and support new hardware, but an unauthorized update constitutes a significant threat because of the BIOS's unique and privileged position within the computing architecture."/>  <meta name="dcterms.title" content="Release of NIST Special Publication 800-147B, BIOS Protection Guidelines for Servers"/> <meta name="dcterms.description" content="Modern computers rely on fundamental system firmware, commonly known as the Basic Input/Output System (BIOS), to enable system components to communicate and work together. The BIOS is typically developed by both original equipment manufacturers (OEMs) and independent BIOS vendors. Manufacturers frequently update system firmware to fix bugs, patch vulnerabilities, and support new hardware, but an unauthorized update constitutes a significant threat because of the BIOS's unique and privileged position within the computing architecture."/>  <meta name="dcterms.creator" content="Author: Andrew Regenscheid (NIST)"/> <meta name="dcterms.creator" content="Author: Larry Feldman (G2)"/> <meta name="dcterms.creator" content="Author: Gregory Witte (G2)"/>  <meta name="dcterms.date.created" schema="ISO8601" content="2014-10-29"/> <meta name="dcterms.identifier" content="https://csrc.nist.gov/pubs/itlb/2014/10/release-of-nist-sp-800147b-bios-protection-guideli/final"/> <meta name="dcterms.language" scheme="DCTERMS.RFC1766" content="EN-US"/>  <meta name="citation_title" content="Release of NIST Special Publication 800-147B, BIOS Protection Guidelines for Servers"/> <meta name="citation_publication_date" content="2014/10/29"/> <meta name="citation_technical_report_number" content="ITL Bulletin "/> <meta name="citation_technical_report_institution" content="National Institute of Standards and Technology"/> <meta name="citation_keywords" content="Basic Input/Output System (BIOS),information security,patch management,server security,firmware,root of trust,root of trust for update"/> <meta name="citation_language" content="en"/> <meta name="citation_abstract_html_url" content="https://csrc.nist.gov/pubs/itlb/2014/10/release-of-nist-sp-800147b-bios-protection-guideli/final"/>  <meta name="citation_author" content="Regenscheid, Andrew"/> <meta name="citation_author" content="Feldman, Larry"/> <meta name="citation_author" content="Witte, Gregory"/>  <meta name="og:site_name" content="CSRC | NIST"/> <meta name="og:type" content="article"/> <meta name="og:url" content="https://web.archive.org/web/20231112072913im_/https://csrc.nist.gov/pubs/itlb/2014/10/release-of-nist-sp-800147b-bios-protection-guideli/final"/> <meta name="og:title" content="Release of NIST Special Publication 800-147B, BIOS Protection Guidelines for Servers"/> <meta name="og:description" content="Modern computers rely on fundamental system firmware, commonly known as the Basic Input/Output System (BIOS), to enable system components to communicate and work together. The BIOS is typically developed by both original equipment manufacturers (OEMs) and independent BIOS vendors. Manufacturers frequently update system firmware to fix bugs, patch vulnerabilities, and support new hardware, but an unauthorized update constitutes a significant threat because of the BIOS's unique and privileged position within the computing architecture."/> <meta name="article:author" content="Regenscheid, Andrew"/> <meta name="article:author" content="Feldman, Larry"/> <meta name="article:author" content="Witte, Gregory"/> <meta name="article:tag" content="Basic Input/Output System (BIOS),information security,patch management,server security,firmware,root of trust,root of trust for update"/> <meta name="article:published_time" content="2014-10-29"/> <meta name="og:image" content="https://web.archive.org/web/20231112072913im_/https://csrc.nist.gov/CSRC/media/images/CSRC-logo-open-graph.png"/> <link rel="apple-touch-icon" sizes="180x180" href="/web/20231112072913im_/https://csrc.nist.gov/images/icons/apple-touch-icon.png"/> <link rel="icon" type="image/png" href="/web/20231112072913im_/https://csrc.nist.gov/images/icons/favicon-32x32.png" sizes="32x32"/> <link rel="icon" type="image/png" href="/web/20231112072913im_/https://csrc.nist.gov/images/icons/favicon-16x16.png" sizes="16x16"/> <link rel="manifest" href="/web/20231112072913/https://csrc.nist.gov/images/icons/manifest.json"/> <link rel="mask-icon" href="/web/20231112072913im_/https://csrc.nist.gov/images/icons/safari-pinned-tab.svg" color="#000000"/> <link href="/web/20231112072913im_/https://csrc.nist.gov/CSRC/Media/images/favicons/favicon.ico" type="image/x-icon" rel="shortcut icon"/> <link href="/web/20231112072913im_/https://csrc.nist.gov/CSRC/Media/images/favicons/favicon.ico" type="image/x-icon" rel="icon"/> <link href="/web/20231112072913cs_/https://csrc.nist.gov/dist/app.css" rel="stylesheet"/>  <style> .grecaptcha-badge { visibility: hidden; } </style> <script async type="text/javascript" id="_fed_an_ua_tag" src="https://web.archive.org/web/20231112072913js_/https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=nist&subagency=csrc&pua=UA-66610693-15&yt=true&exts=xsd,xml,wav,mpg,mpeg,avi,rtf,webm,ogg,ogv,oga,map,otf,eot,svg,ttf,woff"></script> <style id="antiClickjackCss"> body > * { display: none !important; } #antiClickjack { display: block !important; } </style> <noscript> <style id="antiClickjackNoScript"> body > * { display: block !important; } #antiClickjack { display: none !important; } </style> </noscript> <script type="text/javascript" id="antiClickjackScript"> if (self === top) { // no clickjacking var antiClickjack = document.getElementById("antiClickjackCss"); antiClickjack.parentNode.removeChild(antiClickjack); } else { setTimeout(tryForward(), 5000); } function tryForward() { top.location = self.location; } </script>  <script async src="https://web.archive.org/web/20231112072913js_/https://www.googletagmanager.com/gtag/js?id=G-TSQ0PLGJZP"></script> <script> 聽聽window.dataLayer = window.dataLayer || []; 聽聽function gtag(){dataLayer.push(arguments);} 聽聽gtag('js', new Date()); 聽聽gtag('config', 'G-TSQ0PLGJZP'); </script> </head> <body> <div id="antiClickjack" style="display: none;"> <strong style="font-size: 1.6rem;">You are viewing this page in an unauthorized frame window.</strong> <p>This is a potential security issue, you are being redirected to <a href="https://web.archive.org/web/20231112072913/https://csrc.nist.gov/">https://csrc.nist.gov</a>.</p> </div> <section class="usa-banner" aria-label="Official government website"> <div class="usa-accordion container"> <header class="usa-banner__header"> <noscript> <p style="font-size: 0.85rem; font-weight: bold;">You have JavaScript disabled. 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href="https://web.archive.org/web/20231112072913/https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fcontent.csrc.e1a.nist.gov%2Fpubs%2Fitlb%2F2014%2F10%2Frelease-of-nist-sp-800147b-bios-protection-guideli%2Ffinal" class="social-facebook"><i class="fa fa-facebook fa-fw" aria-hidden="true"></i><span class="sr-only">Share to Facebook</span></a> <a href="https://web.archive.org/web/20231112072913/https://twitter.com/share?url=https%3A%2F%2Fcontent.csrc.e1a.nist.gov%2Fpubs%2Fitlb%2F2014%2F10%2Frelease-of-nist-sp-800147b-bios-protection-guideli%2Ffinal" class="social-twitter"><i class="fa fa-twitter fa-fw" aria-hidden="true"></i><span class="sr-only">Share to Twitter</span></a> </div> <p class="hidden-lg hidden-md">     <a href="#pubs-documentation" class="btn btn-lg btn-info" id="pub-topics-anchor-sm">Documentation</a>     <a href="#pubs-topics" class="btn btn-lg btn-info" id="pub-topics-anchor-sm">Topics</a> </p> <div class="row"> <div class="col-md-8 col-sm-12 publication-panel"> <p> <strong>Date Published:</strong> <span id="pub-release-date" data-date-type="citation">October 2014</span><br/> </p> <h4>Author(s)</h4> <p id="pub-authors-container" data-total="3"> <span id="pub-author-0">Andrew Regenscheid (NIST)</span>, <span id="pub-author-1">Larry Feldman (G2)</span>, <span id="pub-author-2">Gregory Witte (G2)</span> </p> <div class="bs-callout bs-callout-success pub-abstract-callout"> <h4 id="pubs-abstract-header">Abstract</h4> <div class="hidden-sm hidden-xs hidden-xxs" id="pub-detail-abstract-info">Modern computers rely on fundamental system firmware, commonly known as the Basic Input/Output System (BIOS), to enable system components to communicate and work together. The BIOS is typically developed by both original equipment manufacturers (OEMs) and independent BIOS vendors. Manufacturers frequently update system firmware to fix bugs, patch vulnerabilities, and support new hardware, but an unauthorized update constitutes a significant threat because of the BIOS's unique and privileged position within the computing architecture.</div> <div class="hidden-lg hidden-md"> <div id="pub-detail-abstract-min"> Modern computers rely on fundamental system firmware, commonly known as the Basic Input/Output System (BIOS), to enable system components to communicate and work together. The BIOS is typically developed by both original equipment manufacturers (OEMs) and independent BIOS vendors. Manufacturers... <a href="#pubs-abstract-header" id="pub-detail-abs-show">See full abstract</a> </div> <div id="pub-detail-abstract-all" style="display: none;"> Modern computers rely on fundamental system firmware, commonly known as the Basic Input/Output System (BIOS), to enable system components to communicate and work together. The BIOS is typically developed by both original equipment manufacturers (OEMs) and independent BIOS vendors. Manufacturers frequently update system firmware to fix bugs, patch vulnerabilities, and support new hardware, but an unauthorized update constitutes a significant threat because of the BIOS's unique and privileged position within the computing architecture.<br/> <a href="#pubs-abstract-header" id="pub-detail-abs-hide">Hide full abstract</a> </div> </div> <h4>Keywords</h4> <span id="pub-keywords-container" data-total="7"> <span id="pub-keyword-0">Basic Input/Output System (BIOS)</span>; <span id="pub-keyword-1">information security</span>; <span id="pub-keyword-2">patch management</span>; <span id="pub-keyword-3">server security</span>; <span id="pub-keyword-4">firmware</span>; <span id="pub-keyword-5">root of trust</span>; <span id="pub-keyword-6">root of trust for update</span> </span> </div> <h5>Control Families</h5> <p> <span id="pub-control-fam-container" data-total="3"> <span id="pub-control-fam-0">Access Control</span>; <span id="pub-control-fam-1">System and Services Acquisition</span>; <span id="pub-control-fam-2">System and Information Integrity</span> </span> </p> </div> <div class="col-md-4 col-sm-12"> <div class="bs-callout bs-callout-success" id="pubs-documentation"> <h4>Documentation</h4> <p> <strong>Publication:</strong><br/> <a href="/web/20231112072913/https://csrc.nist.gov/files/pubs/shared/itlb/itlbul2014-10.pdf" id="pub-local-download-link"><i class="fa fa-download"></i> Download (pdf)</a><br/> </p> <p> <strong>Supplemental Material:</strong><br/> <span id="pub-supp-container" data-total="0">None available</span><br/> </p> <p> <strong>Document History:</strong><br/> <span id="pub-history-container" data-total="1"> 10/29/14: <span id="pub-history-link-0" data-current-document="true">ITL Bulletin (Final)</span><br/> </span> </p> </div> <div class="bs-callout bs-callout-danger" id="topicsCallout-lg"> <h4>Topics</h4> <strong id="pub-cat-0">Security and Privacy</strong> <p> <a id="pub-cat-top-0-0" href="/web/20231112072913/https://csrc.nist.gov/topics/security-and-privacy/identity-and-access-management/authentication">authentication</a>, <a id="pub-cat-top-0-1" href="/web/20231112072913/https://csrc.nist.gov/topics/security-and-privacy/cryptography/digital-signatures">digital signatures</a>, <a id="pub-cat-top-0-2" href="/web/20231112072913/https://csrc.nist.gov/topics/security-and-privacy/security-programs-and-operations/patch-management">patch management</a>, <a id="pub-cat-top-0-3" href="/web/20231112072913/https://csrc.nist.gov/topics/security-and-privacy/identity-and-access-management/pki">public key infrastructure</a>, <a id="pub-cat-top-0-4" href="/web/20231112072913/https://csrc.nist.gov/topics/security-and-privacy/risk-management/threats">threats</a>, <a id="pub-cat-top-0-5" href="/web/20231112072913/https://csrc.nist.gov/topics/security-and-privacy/risk-management/vulnerability-management">vulnerability management</a> </p> <strong id="pub-cat-1">Technologies</strong> 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