{"id":53175,"date":"2021-05-20T08:45:00","date_gmt":"2021-05-20T08:45:00","guid":{"rendered":"https:\/\/fr.cryptonews.com\/?p=53175"},"modified":"2023-06-26T11:07:36","modified_gmt":"2023-06-26T11:07:36","slug":"disclosed-ethereum-lived-with-a-major-threat-for-18-months-10613","status":"publish","type":"post","link":"https:\/\/cryptonews.com\/fr\/news\/disclosed-ethereum-lived-with-a-major-threat-for-18-months-10613\/","title":{"rendered":"Une vuln\u00e9rabilit\u00e9 majeure mena\u00e7ait Ethereum (ETH) depuis 18 mois"},"content":{"rendered":"<p>Le grand public savait que le hard fork &ldquo;<a href=\"https:\/\/cryptonews.com\/fr\/news\/ethereum-day-berlin-upgrade-price-ath-gas-drop-and-cme-futur-10138\/\" target=\"_blank\" rel=\"noopener\">Berlin<\/a>&rdquo; de Ethereum (ETH) avait &eacute;t&eacute; mis en place le mois dernier. Ce que la majorit&eacute; des gens ignorent, c&#8217;est que cette op&eacute;ration s&#8217;accompagnait d&#8217;une solution pour r&eacute;duire le risque d&#8217;une attaque <a href=\"https:\/\/en.wikipedia.org\/wiki\/Denial-of-service_attack#:~:text=In%20computing%2C%20a%20denial%2Dof,host%20connected%20to%20the%20Internet.\" target=\"_blank\" rel=\"noopener\">DoS<\/a> (d&eacute;ni de service), qui plane sur le r&eacute;seau depuis plus d&#8217;un an et demi.<\/p><figure><img decoding=\"async\" src=\"https:\/\/cimg.co\/w\/articles-attachments\/1\/60a\/50311ce0ed.jpg\" sizes=\"(min-width: 640px) 720px, 100vw\" srcset=\"https:\/\/cimg.co\/w\/articles-attachments\/1\/60a\/50311ce0ed.jpg 300w, https:\/\/cimg.co\/w\/articles-attachments\/2\/60a\/50311ce0ed.jpg 600w, https:\/\/cimg.co\/w\/articles-attachments\/3\/60a\/50311ce0ed.jpg 720w, https:\/\/cimg.co\/w\/articles-attachments\/4\/60a\/50311ce0ed.jpg 900w\" alt=\"\" class=\"content-img\"><figcaption>Source: iStock\/PashaIgnatov<\/figcaption><\/figure><p>L&rsquo;information a &eacute;t&eacute; rendue publique dans un <a href=\"https:\/\/blog.ethereum.org\/2021\/05\/18\/eth_state_problems\/\" target=\"_blank\" rel=\"noopener\">article<\/a> du 18 mai r&eacute;dig&eacute; par <b>P&eacute;ter Szil&aacute;gyi<\/b>, d&eacute;veloppeur d&#8217;Ethereum, et <b>Martin Holst Swende<\/b>, responsable de la s&eacute;curit&eacute; au sein de la <b>Fondation Ethereum<\/b> : cette menace &#8221; constituait un danger r&eacute;el sur le r&eacute;seau jusqu&#8217;au hard fork Berlin&#8221;.<\/p><p>Cette vuln&eacute;rabilit&eacute; a &eacute;t&eacute; un &#8220;secret de polichinelle&#8221; pendant longtemps, ont-ils dit, r&eacute;v&eacute;l&eacute;e publiquement par erreur au moins une fois. Les d&eacute;veloppeurs estiment &ldquo;que la menace est d&eacute;sormais suffisamment faible pour que la transparence l&#8217;emporte&#8221;.<\/p><p>Ils ajoutent qu&#8217;il est &#8220;important que la communaut&eacute; ait la possibilit&eacute; de comprendre le raisonnement derri&egrave;re les changements qui affectent n&eacute;gativement l&#8217;exp&eacute;rience utilisateur, comme l&#8217;augmentation du co&ucirc;t du gaz et la limitation des remboursements.&#8221;<\/p><div class=\"tweet tweetContainer\"><oembed url=\"https:\/\/twitter.com\/go_ethereum\/status\/1394650199667187718\"><\/oembed><\/div><p>Le rapport est bri&egrave;vement entr&eacute; dans les d&eacute;tails techniques, expliquant que l&#8217;&eacute;tat d&#8217;Ethereum est constitu&eacute; d&#8217;un <a href=\"https:\/\/eth.wiki\/fundamentals\/patricia-tree\" target=\"_blank\" rel=\"noopener\">&#8220;patricia-merkle trie&#8221;<\/a> (la structure de donn&eacute;es utilis&eacute;e pour le stockage) et qu&#8217;&agrave; mesure que de nouveaux comptes sont ajout&eacute;s au r&eacute;seau, de nouvelles &#8220;feuilles&#8221; se forment, et pour ainsi dire, le &#8220;trie&#8221; devient plus dense.<\/p><p>Par ailleurs, &agrave; mesure que le r&eacute;seau se d&eacute;veloppe, de nouvelles propositions d&#8217;am&eacute;lioration d&#8217;Ethereum (EIP) ont &eacute;t&eacute; introduites pour augmenter le prix du gaz pour les op&eacute;rations qui acc&egrave;dent au &ldquo;trie&rdquo;, et pour se prot&eacute;ger contre les attaques DoS. L&#8217;une d&#8217;entre elles &eacute;tait <a href=\"https:\/\/eips.ethereum.org\/EIPS\/eip-1884\" target=\"_blank\" rel=\"noopener\">l&#8217;EIP-1884<\/a>, activ&eacute;e en d&eacute;cembre 2019, lors de la mise &agrave; niveau <a href=\"https:\/\/cryptonews.com\/news\/unexpected-ethereum-muir-glacier-upgrade-finds-74-of-clients-5422\/\">&#8220;Istanbul&#8221;<\/a>.<\/p><p>Mais en octobre 2019, les experts en s&eacute;curit&eacute; d&#8217;Ethereum, <b>Hubert Ritzdorf<\/b>, <b>Matthias Egli<\/b> et <b>Daniel Perez<\/b> ont trouv&eacute; un moyen d&rsquo;exploiter cette vuln&eacute;rabilit&eacute; pour attaquer le r&eacute;seau. Cette d&eacute;couverte a &eacute;t&eacute; <a href=\"https:\/\/hackmd.io\/@iwck0wkoSzauVnsYI0h7JA\/SkyFmk4_r\" target=\"_blank\" rel=\"noopener\">soumise<\/a> au programme de primes aux bugs (bounty hunt) d&#8217;Ethereum. L&rsquo;examen a conclu que &#8220;les modifications apport&eacute;es par l&#8217;EIP-1884 avaient eu un impact certain sur la r&eacute;duction des effets de l&#8217;attaque, mais que c&#8217;&eacute;tait loin d&#8217;&ecirc;tre suffisant.&#8221;<\/p><p>Les d&eacute;veloppeurs de <b>Geth<\/b>, <b>Nethermind<\/b>, <b>OpenEthereum<\/b>, <b>Besu<\/b>, <b>Parity<\/b> et <b>Aleth<\/b> ont &eacute;t&eacute; inform&eacute;s de la soumission le jour m&ecirc;me sur un canal d&eacute;di&eacute; &agrave; la s&eacute;curit&eacute; inter-clients, indique l&rsquo;article, qui ajoute que les d&eacute;veloppeurs d&#8217;Ethereum Classic (ETC) ont &eacute;galement re&ccedil;u le rapport. <\/p><div class=\"tweet tweetContainer\"><oembed url=\"https:\/\/twitter.com\/wongisrite\/status\/1394846815472820225?s=20\"><\/oembed><\/div><p>&#8220;Alors que l&#8217;ann&eacute;e 2019 touchait &agrave; sa fin, ces probl&egrave;mes &eacute;taient plus importants que ce que nous avions pr&eacute;vu et les transactions malveillantes pouvaient entra&icirc;ner des blocages de l&#8217;ordre de la minute.&#8221;<\/p><p>Il y avait deux approches pour trouver une solution :<\/p><ul><li>essayer de r&eacute;soudre le probl&egrave;me au niveau de la couche protocolaire, de pr&eacute;f&eacute;rence sans rompre les contrats et sans p&eacute;naliser les &#8220;bons&#8221; comportements, mais en parvenant &agrave; pr&eacute;venir les attaques ;<\/li><li>r&eacute;soudre le probl&egrave;me par le biais de l&#8217;ing&eacute;nierie logicielle, en modifiant les mod&egrave;les de donn&eacute;es et les structures au sein des clients.<\/li><\/ul><p>Le 15 avril de cette ann&eacute;e, apr&egrave;s plusieurs propositions rejet&eacute;es, <a href=\"https:\/\/eips.ethereum.org\/EIPS\/eip-2929\" target=\"_blank\" rel=\"noopener\">l&#8217;EIP-2929<\/a> et son compagnon <a href=\"https:\/\/eips.ethereum.org\/EIPS\/eip-2930\" target=\"_blank\" rel=\"noopener\">l&#8217;EIP-2930<\/a> ont &eacute;t&eacute; int&eacute;gr&eacute;s &agrave; la mise &agrave; niveau &ldquo;Berlin&rdquo; &#8211; qui ne rompt aucun flux contractuel et qui a augment&eacute; le prix du gaz &#8220;uniquement pour les &eacute;l&eacute;ments auxquels nous n&#8217;avons pas d&eacute;j&agrave; eu acc&egrave;s&#8221; afin de pr&eacute;venir l&#8217;attaque.<\/p><p>Il est important de noter que ce n&#8217;est pas la premi&egrave;re fois qu&rsquo;une menace est divulgu&eacute;e quelques ann&eacute;es apr&egrave;s sa d&eacute;couverte, et les d&eacute;veloppeurs affirment que c&#8217;est pour une tr&egrave;s bonne raison.<\/p><p>En septembre 2020, un document de recherche a <a href=\"https:\/\/cryptonews.com\/exclusives\/in-devs-we-trust-bitcoin-bugs-die-in-secret-leaving-altcoins-7762\/\">r&eacute;v&eacute;l&eacute;<\/a> que Bitcoin (BTC) abritait une grave vuln&eacute;rabilit&eacute; de d&eacute;ni de service &#8211; qui a &eacute;t&eacute; d&eacute;couverte et corrig&eacute;e en juin 2018, sans que le public le sache pendant deux ans.<\/p><p>Selon les d&eacute;veloppeurs qui se sont adress&eacute;s &agrave; <i>Cryptonews.com<\/i> &agrave; l&#8217;&eacute;poque, il est dans l&#8217;int&eacute;r&ecirc;t du r&eacute;seau et de ses utilisateurs de garder les bogues logiciels secrets et de n&#8217;en informer rapidement que quelques d&eacute;veloppeurs\/propri&eacute;taires de code par le biais de messages crypt&eacute;s, au moins jusqu&#8217;&agrave; ce qu&#8217;un correctif soit mis en place.<\/p><p>________<\/p><p>Suivez nos liens d&#8217;affili&eacute;s:<\/p><p><b>Pour acheter des cryptomonnaies en Zone SEPA, Europe et citoyens fran&ccedil;ais<\/b>, visitez <a href=\"https:\/\/www.coinhouse.com\/r\/179207\" target=\"_blank\" rel=\"noopener\">Coinhouse<\/a> <\/p><p><b>Pour acheter des cryptomonnaies au Canada<\/b>, visitez <a href=\"https:\/\/go.bitbuy.tech\/aff_c?offer_id=3&amp;aff_id=1009&amp;source=FR\" target=\"_blank\" rel=\"noopener\">Bitbuy<\/a><\/p><p><b>Pour g&eacute;n&eacute;rer des int&eacute;r&ecirc;ts gr&acirc;ce &agrave; vos bitcoins<\/b>, allez sur le site de <a href=\"https:\/\/blockfi.mxuy67.net\/kqG6x\" target=\"_blank\" rel=\"noopener\">BlockFi<\/a><\/p><p><b>Pour s&eacute;curiser ou stocker vos cryptomonnaies<\/b>, procurez-vous les portefeuilles <a href=\"https:\/\/shop.ledger.com\/?r=12b53b98a1c0&amp;tracker=CN-FR\" target=\"_blank\" rel=\"noopener\">Ledger<\/a> ou <a href=\"https:\/\/shop.trezor.io\/?offer_id=82&amp;aff_id=1814\" target=\"_blank\" rel=\"noopener\">Trezor<\/a><\/p><p><b>Pour investir dans le minage ou les masternodes:<\/b><\/p><ul><li>Sur <a href=\"https:\/\/feel-mining.com\/?tracking=1ED831AFAB\" target=\"_blank\" rel=\"noopener\">Feel Mining<\/a><\/li><li>Sur <a href=\"https:\/\/www.just-mining.com\/register?sponsor=aNJ7nRa0m3qvgi6LkMXAZX506\" target=\"_blank\" rel=\"noopener\">Just Mining<\/a> <\/li><\/ul><p><b>Pour accumuler des cryptos en jouant:<\/b><\/p><ul><li>Au poker sur la plateforme de jeux <a href=\"https:\/\/coinpoker.com\/crypto\" target=\"_blank\" rel=\"noopener\">CoinPoker<\/a><\/li><li>&Agrave; un fantasy football mondial sur la plateforme <a href=\"https:\/\/sorare.pxf.io\/c\/2102999\/902742\/12209\" target=\"_blank\" rel=\"noopener\">Sorare<\/a><\/li><\/ul><p><b>Si vous voulez en apprendre plus sur le Bitcoin et l&rsquo;investissement dans les cryptomonnaies, voici deux livres parfaits: &ldquo;<a href=\"https:\/\/amzn.to\/3j0wEQ1\" target=\"_blank\" rel=\"noopener\">Comprendre Bitcoin en 2h<\/a>&#8221; et &ldquo;<a href=\"https:\/\/amzn.to\/38J7IJR\" target=\"_blank\" rel=\"noopener\">Investir dans Bitcoin<\/a>&#8220;.<\/b> <\/p><p><b>Regardez la derni&egrave;re vid&eacute;o &ldquo;Les 5 actus cryptos de la semaine&rdquo;:<\/b><\/p><div class=\"raw-html-embed\"><iframe width=\"560\" height=\"315\" class=\"lazyload\" data-src=\"https:\/\/www.youtube.com\/embed\/DDt16RXD50M\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/div><p>________________\t<\/p><p>Voici les sources d&rsquo;informations qu&rsquo;on vous propose:<br>\n<b>Notre newsletter hebdomadaire gratuite: <a href=\"https:\/\/www.getrevue.co\/profile\/CryptonewsFR\" target=\"_blank\" rel=\"noopener\">https:\/\/www.getrevue.co\/profile\/CryptonewsFR<\/a><br>\nNotre podcast audio: <a href=\"https:\/\/www.buzzsprout.com\/1111262\" target=\"_blank\" rel=\"noopener\">https:\/\/www.buzzsprout.com\/1111262<\/a><br>\nNotre cha&icirc;ne YouTube: <a href=\"https:\/\/www.youtube.com\/channel\/UCEu7E2wqP3t3QzAWTWF9weg\" target=\"_blank\" rel=\"noopener\">https:\/\/www.youtube.com\/channel\/UCEu7E2wqP3t3QzAWTWF9weg<\/a><br>\nTwitter: <a href=\"https:\/\/twitter.com\/cryptonews_FR\" target=\"_blank\" rel=\"noopener\">https:\/\/twitter.com\/cryptonews_FR<\/a><br>\nInstagram: <a href=\"https:\/\/www.instagram.com\/fr_cryptonews\" target=\"_blank\" rel=\"noopener\">https:\/\/www.instagram.com\/fr_cryptonews<\/a><br>\nFacebook: <a href=\"https:\/\/www.facebook.com\/cryptonewsFR\" target=\"_blank\" rel=\"noopener\">https:\/\/www.facebook.com\/cryptonewsFR<\/a><br>\nTelegram: <a href=\"https:\/\/t.me\/cryptonews_FR\" target=\"_blank\" rel=\"noopener\">https:\/\/t.me\/cryptonews_FR<\/a><\/b><\/p><p>_________<\/p>","protected":false},"excerpt":{"rendered":"<p>Le grand public savait que le hard fork &ldquo;Berlin&rdquo; de Ethereum (ETH) avait &eacute;t&eacute; mis en place le mois dernier. Ce que la majorit&eacute; des gens ignorent, c&#8217;est que cette op&eacute;ration s&#8217;accompagnait d&#8217;une solution pour r&eacute;duire le risque d&#8217;une attaque DoS (d&eacute;ni de service), qui plane sur le r&eacute;seau depuis plus d&#8217;un an et demi.Source: [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7,1],"tags":[127,51,83],"editors":[2550],"sponsored_companies":[],"class_list":["post-53175","post","type-post","status-publish","format-standard","hentry","category-ethereum-news","category-news","tag-communaute","tag-ethereum","tag-securite","editors-jurgen-hoffman"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Une vuln\u00e9rabilit\u00e9 existant sur Ethereum depuis plusieurs mois a \u00e9t\u00e9 corrig\u00e9e<\/title>\n<meta name=\"description\" content=\"Les d\u00e9veloppeurs d&#039;Ethereum ont r\u00e9v\u00e9l\u00e9 dans un post que la blockchain \u00e9tait sous la menace d&#039;une attaque par d\u00e9ni de service depuis plusieurs mois : la vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 corrig\u00e9e suite \u00e0 la mise en oeuvre du hard fork &quot;Berlin&quot;.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cryptonews.com\/fr\/news\/disclosed-ethereum-lived-with-a-major-threat-for-18-months-10613\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Une vuln\u00e9rabilit\u00e9 existant sur Ethereum depuis plusieurs mois a \u00e9t\u00e9 corrig\u00e9e\" \/>\n<meta property=\"og:description\" content=\"Les d\u00e9veloppeurs d&#039;Ethereum ont r\u00e9v\u00e9l\u00e9 dans un post que la blockchain \u00e9tait sous la menace d&#039;une attaque par d\u00e9ni de service depuis plusieurs mois : la vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 corrig\u00e9e suite \u00e0 la mise en oeuvre du hard fork &quot;Berlin&quot;.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/cryptonews.com\/fr\/news\/disclosed-ethereum-lived-with-a-major-threat-for-18-months-10613\/\" \/>\n<meta property=\"og:site_name\" content=\"Cryptonews France\" \/>\n<meta property=\"article:published_time\" content=\"2021-05-20T08:45:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-06-26T11:07:36+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cimg.co\/w\/articles-attachments\/1\/60a\/50311ce0ed.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Une vuln\u00e9rabilit\u00e9 existant sur Ethereum depuis plusieurs mois a \u00e9t\u00e9 corrig\u00e9e\" \/>\n<meta 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France","article_published_time":"2021-05-20T08:45:00+00:00","article_modified_time":"2023-06-26T11:07:36+00:00","og_image":[{"url":"https:\/\/cimg.co\/w\/articles-attachments\/1\/60a\/50311ce0ed.jpg","type":"","width":"","height":""}],"twitter_card":"summary_large_image","twitter_title":"Une vuln\u00e9rabilit\u00e9 existant sur Ethereum depuis plusieurs mois a \u00e9t\u00e9 corrig\u00e9e","twitter_description":"Les d\u00e9veloppeurs d'Ethereum ont r\u00e9v\u00e9l\u00e9 dans un post que la blockchain \u00e9tait sous la menace d'une attaque par d\u00e9ni de service depuis plusieurs mois : la vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 corrig\u00e9e suite \u00e0 la mise en oeuvre du hard fork \"Berlin\".","twitter_image":"https:\/\/cimg.co\/news\/53089\/18385\/60a503178bb4e.jpg","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"NewsArticle","@id":"https:\/\/cryptonews.com\/fr\/news\/disclosed-ethereum-lived-with-a-major-threat-for-18-months-10613\/#article","isPartOf":{"@id":"https:\/\/cryptonews.com\/fr\/news\/disclosed-ethereum-lived-with-a-major-threat-for-18-months-10613\/"},"author":{"name":"giedrius","@id":"https:\/\/cryptonews.com\/fr\/#\/schema\/person\/5d79e712f570715212460260f4f9cc0f"},"headline":"Une vuln\u00e9rabilit\u00e9 majeure mena\u00e7ait Ethereum (ETH) depuis 18 mois","datePublished":"2021-05-20T08:45:00+00:00","dateModified":"2023-06-26T11:07:36+00:00","mainEntityOfPage":{"@id":"https:\/\/cryptonews.com\/fr\/news\/disclosed-ethereum-lived-with-a-major-threat-for-18-months-10613\/"},"wordCount":1168,"publisher":{"@id":"https:\/\/cryptonews.com\/fr\/#organization"},"image":{"@id":"https:\/\/cryptonews.com\/fr\/news\/disclosed-ethereum-lived-with-a-major-threat-for-18-months-10613\/#primaryimage"},"thumbnailUrl":"https:\/\/cimg.co\/w\/articles-attachments\/1\/60a\/50311ce0ed.jpg","keywords":["Communaut\u00e9","Ethereum","S\u00e9curit\u00e9"],"articleSection":["Actualit\u00e9s 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