{"id":14035,"date":"2025-07-21T12:43:56","date_gmt":"2025-07-21T19:43:56","guid":{"rendered":"https:\/\/legacy.gosecure.ai\/blog\/2025\/07\/21\/correctifs-durgence-rce-pour-microsoft-sharepoint\/"},"modified":"2025-07-21T13:30:36","modified_gmt":"2025-07-21T20:30:36","slug":"correctifs-durgence-rce-pour-microsoft-sharepoint","status":"publish","type":"post","link":"https:\/\/legacy.gosecure.ai\/fr\/blog\/2025\/07\/21\/correctifs-durgence-rce-pour-microsoft-sharepoint\/","title":{"rendered":"Correctifs d&rsquo;urgence RCE pour Microsoft SharePoint"},"content":{"rendered":"<p>[et_pb_section fb_built=\u00a0\u00bb1&Prime; admin_label=\u00a0\u00bbsection\u00a0\u00bb _builder_version=\u00a0\u00bb4.16&Prime; global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row admin_label=\u00a0\u00bbrow\u00a0\u00bb _builder_version=\u00a0\u00bb4.16&Prime; background_size=\u00a0\u00bbinitial\u00a0\u00bb background_position=\u00a0\u00bbtop_left\u00a0\u00bb background_repeat=\u00a0\u00bbrepeat\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.16&Prime; custom_padding=\u00a0\u00bb|||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb custom_padding__hover=\u00a0\u00bb|||\u00a0\u00bb][et_pb_text admin_label=\u00a0\u00bbText\u00a0\u00bb _builder_version=\u00a0\u00bb4.24.2&Prime; background_size=\u00a0\u00bbinitial\u00a0\u00bb background_position=\u00a0\u00bbtop_left\u00a0\u00bb background_repeat=\u00a0\u00bbrepeat\u00a0\u00bb hover_enabled=\u00a0\u00bb0&Prime; global_colors_info=\u00a0\u00bb{}\u00a0\u00bb sticky_enabled=\u00a0\u00bb0&Prime;]<\/p>\n<div class=\"x_elementToProof\" data-olk-copy-source=\"MessageBody\"><img class=\"wp-image-14028 size-medium alignright\" src=\"https:\/\/legacy.gosecure.ai\/wp-content\/uploads\/Security-Advisory_-Sharepoint-FRC-300x157.jpg\" alt=\"Security Advisory_ Sharepoint - FRC\" width=\"300\" height=\"157\" \/>Microsoft a publi\u00e9 des correctifs de s\u00e9curit\u00e9 hors cycle pour corriger deux failles de type ex\u00e9cution de code \u00e0 distance (RCE) dans SharePoint, activement exploit\u00e9es. Ces failles, r\u00e9f\u00e9renc\u00e9es CVE-2025-53770 et CVE-2025-53771, sont connues sous le nom de \u201cToolShell\u201d. Des attaquants exploitent ces vuln\u00e9rabilit\u00e9s afin de prendre le contr\u00f4le total des serveurs SharePoint vuln\u00e9rables.<\/div>\n<div><b><br \/>Sommaire de la situation:<\/b><\/div>\n<ul>\n<li><b>RCE non authentifi\u00e9e :<\/b> Une exploitation r\u00e9ussie permet \u00e0 un attaquant distant d\u2019ex\u00e9cuter du code arbitraire dans le contexte des serveurs SharePoint connect\u00e9s (farms).<\/li>\n<li><b>Attaques actives en cours :<\/b> Les campagnes ToolShell sont en cours. Tout retard de correctif augmente consid\u00e9rablement les risques.<\/li>\n<li><b>Correctifs pr\u00e9c\u00e9dents incomplets :<\/b> Les mises \u00e0 jour de juillet (Patch Tuesday du 8 juillet) <b>n\u2019ont pas<\/b> corrig\u00e9 ces nouveaux contournements.<\/li>\n<\/ul>\n<div><b>Actions requises<\/b><\/div>\n<ul>\n<li>SharePoint Server 2019 \u2013 Installer le correctif KB5002754<\/li>\n<li>SharePoint Subscription Edition \u2013 Installer le correctif KB5002768<\/li>\n<li>SharePoint Enterprise Server \u2013 Correctif en attente, pr\u00e9parez le d\u00e9ploiement d\u00e8s sa publication par Microsoft<\/li>\n<li>Apr\u00e8s installation des correctifs, effectuez une rotation des cl\u00e9s machine SharePoint pour invalider les jetons potentiellement falsifi\u00e9s :\n<ul>\n<li><b>PowerShell :<\/b> Update-SPMachineKey<\/li>\n<li><b>Administration centrale :<\/b> Surveillance&gt; Examiner les d\u00e9finitions de t\u00e2ches&gt; T\u00e2che de rotation des cl\u00e9s machine &gt; Ex\u00e9cuter maintenant, puis iistreset sur tous les serveurs frontaux web.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<div class=\"x_elementToProof\"><b>V\u00e9rifications recommand\u00e9es :<\/b><\/div>\n<ul>\n<li>Recherchez le fichier spinstall0.aspx dans :<br \/>C:\\Program Files\\Common Files\\Microsoft Shared\\Web Server Extensions\\16\\TEMPLATE\\LAYOUTS\\<\/li>\n<li>Examinez les journaux IIS pour des requ\u00eates POST suspectes vers :<br \/>\/_layouts\/15\/ToolPane.aspx?DisplayMode=Edit&amp;a=\/ToolPane.asp avec le r\u00e9f\u00e9rent : \/_layouts\/SignOut.aspx<\/li>\n<li>Utilisez Microsoft 365 Defender pour interroger la cr\u00e9ation r\u00e9cente du fichier spinstall0.aspx<\/li>\n<\/ul>\n<div>Si l\u2019un de ces indicateurs est pr\u00e9sent, initiez imm\u00e9diatement une proc\u00e9dure compl\u00e8te de r\u00e9ponse \u00e0 incident.<\/div>\n<div><b><br \/>Notre soutien:<\/b><\/div>\n<ul>\n<li><b>Assistance au d\u00e9ploiement :<\/b> L\u2019\u00e9quipe VMaaS est disponible pour planifier ou vous aider dans l\u2019application urgente des correctifs.<\/li>\n<li><b>Chasse aux menaces :<\/b> Nous mettons \u00e0 jour notre contenu de d\u00e9tection et effectuerons des recherches cibl\u00e9es des artefacts ToolShell.<\/li>\n<\/ul>\n<h5 aria-level=\"3\"><b><span data-contrast=\"auto\">Agissez aujourd&rsquo;hui<\/span><\/b><\/h5>\n<p><span data-contrast=\"auto\">Ignorer ces menaces pourrait rendre votre entreprise vuln\u00e9rable \u00e0 un incident de s\u00e9curit\u00e9 grave. Si vous souhaitez en savoir plus sur la mani\u00e8re dont GoSecure peut aider \u00e0 prot\u00e9ger votre organisation, contactez-nous d\u00e8s aujourd&rsquo;hui pour une consultation de s\u00e9curit\u00e9.<\/span><\/p>\n<p><a href=\"https:\/\/legacy.gosecure.ai\/managed-extended-detection-response\/\"><span data-contrast=\"auto\">En savoir plus sur MXDR GoSecure TitanMC<\/span><\/a><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"x_elementToProof\" data-olk-copy-source=\"MessageBody\"><img class=\"size-medium wp-image-14025 alignright\" src=\"https:\/\/legacy.gosecure.ai\/wp-content\/uploads\/Security-Advisory_-Sharepoint-ENG-300x157.jpg\" alt=\"Security Advisory_ Sharepoint - FRC\" width=\"300\" height=\"157\">Microsoft a publi\u00e9 des correctifs de s\u00e9curit\u00e9 hors cycle pour corriger deux failles de type ex\u00e9cution de code \u00e0 distance (RCE) dans SharePoint, activement exploit\u00e9es. Ces failles, r\u00e9f\u00e9renc\u00e9es CVE-2025-53770 et CVE-2025-53771, sont connues sous le nom de \u201cToolShell\u201d. Des attaquants exploitent ces vuln\u00e9rabilit\u00e9s afin de prendre le contr\u00f4le total des serveurs SharePoint vuln\u00e9rables.<\/div>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"<div class=\"x_elementToProof\" data-olk-copy-source=\"MessageBody\"><img class=\"size-medium wp-image-14025 alignright\" src=\"https:\/\/legacy.gosecure.ai\/wp-content\/uploads\/\/Security-Advisory_-Sharepoint-ENG-300x157.jpg\" alt=\"Security Advisory_ Sharepoint - FRC\" width=\"300\" height=\"157\">Microsoft a publi\u00e9 des correctifs de s\u00e9curit\u00e9 hors cycle pour corriger deux failles de type ex\u00e9cution de code \u00e0 distance (RCE) dans SharePoint, activement exploit\u00e9es. Ces failles, r\u00e9f\u00e9renc\u00e9es CVE-2025-53770 et CVE-2025-53771, sont connues sous le nom de \u201cToolShell\u201d. Des attaquants exploitent ces vuln\u00e9rabilit\u00e9s afin de prendre le contr\u00f4le total des serveurs SharePoint vuln\u00e9rables.<\/div>\r\n<div><b>Sommaire de la situation:<\/b><\/div>\r\n<ul>\r\n \t<li><b>RCE non authentifi\u00e9e :<\/b> Une exploitation r\u00e9ussie permet \u00e0 un attaquant distant d\u2019ex\u00e9cuter du code arbitraire dans le contexte des serveurs SharePoint connect\u00e9s (farms).<\/li>\r\n \t<li><b>Attaques actives en cours :<\/b> Les campagnes ToolShell sont en cours. Tout retard de correctif augmente consid\u00e9rablement les risques.<\/li>\r\n \t<li><b>Correctifs pr\u00e9c\u00e9dents incomplets :<\/b> Les mises \u00e0 jour de juillet (Patch Tuesday du 8 juillet) <b>n\u2019ont pas<\/b> corrig\u00e9 ces nouveaux contournements.<\/li>\r\n<\/ul>\r\n<div><b>Actions requises<\/b><\/div>\r\n<ul>\r\n \t<li>SharePoint Server 2019 \u2013 Installer le correctif KB5002754<\/li>\r\n \t<li>SharePoint Subscription Edition \u2013 Installer le correctif KB5002768<\/li>\r\n \t<li>SharePoint Enterprise Server \u2013 Correctif en attente, pr\u00e9parez le d\u00e9ploiement d\u00e8s sa publication par Microsoft<\/li>\r\n \t<li>Apr\u00e8s installation des correctifs, effectuez une rotation des cl\u00e9s machine SharePoint pour invalider les jetons potentiellement falsifi\u00e9s :\r\n<ul>\r\n \t<li><b>PowerShell :<\/b> Update-SPMachineKey<\/li>\r\n \t<li><b>Administration centrale :<\/b> Surveillance> Examiner les d\u00e9finitions de t\u00e2ches> T\u00e2che de rotation des cl\u00e9s machine > Ex\u00e9cuter maintenant, puis iistreset sur tous les serveurs frontaux web.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<div class=\"x_elementToProof\"> <b>V\u00e9rifications recommand\u00e9es :<\/b><\/div>\r\n<ul>\r\n \t<li>Recherchez le fichier spinstall0.aspx dans :<br>C:Program FilesCommon FilesMicrosoft SharedWeb Server Extensions16TEMPLATELAYOUTS<\/li>\r\n \t<li>Examinez les journaux IIS pour des requ\u00eates POST suspectes vers :<br>\/_layouts\/15\/ToolPane.aspx?DisplayMode=Edit&a=\/ToolPane.asp avec le r\u00e9f\u00e9rent : \/_layouts\/SignOut.aspx<\/li>\r\n \t<li>Utilisez Microsoft 365 Defender pour interroger la cr\u00e9ation r\u00e9cente du fichier spinstall0.aspx<\/li>\r\n<\/ul>\r\n<div>Si l\u2019un de ces indicateurs est pr\u00e9sent, initiez imm\u00e9diatement une proc\u00e9dure compl\u00e8te de r\u00e9ponse \u00e0 incident.<\/div>\r\n<div><b>Notre soutien:<\/b><\/div>\r\n<ul>\r\n \t<li><b>Assistance au d\u00e9ploiement :<\/b> L\u2019\u00e9quipe VMaaS est disponible pour planifier ou vous aider dans l\u2019application urgente des correctifs.<\/li>\r\n \t<li><b>Chasse aux menaces :<\/b> Nous mettons \u00e0 jour notre contenu de d\u00e9tection et effectuerons des recherches cibl\u00e9es des artefacts ToolShell.<\/li>\r\n<\/ul>\r\n<h5 aria-level=\"3\"><b><span data-contrast=\"auto\">Agissez aujourd'hui<\/span><\/b><span data-ccp-props=\"{\"134245418\":true,\"134245529\":true,\"335559738\":281,\"335559739\":281}\"> <\/span><\/h5>\r\n<span data-contrast=\"auto\">Ignoring these threats could leave your business vulnerable to a serious security incident. Si vous souhaitez en savoir plus sur la mani\u00e8re dont GoSecure peut aider \u00e0 prot\u00e9ger votre organisation, contactez-nous d\u00e8s aujourd'hui pour une consultation de s\u00e9curit\u00e9.<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span>\r\n\r\n<a href=\"https:\/\/legacy.gosecure.ai\/managed-extended-detection-response\/\"><span data-contrast=\"auto\">En savoir plus sur MXDR GoSecure TitanMC<\/span><\/a><span data-contrast=\"auto\"> <\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span>","_et_gb_content_width":"","footnotes":""},"categories":[654,437,475],"tags":[520,803,523,807,802,804,808,806,525,805],"class_list":["post-14035","post","type-post","status-publish","format-standard","hentry","category-incident-response-fr","category-avis-de-securite","category-vulnerability-fr","tag-cybersecurity-fr","tag-microsoft-fr","tag-mxdr-fr","tag-patching-fr","tag-rce-fr","tag-sharepoint-fr","tag-threat-advisory-fr","tag-toolshell-fr","tag-vmaas-fr","tag-zero-day-fr"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.0 (Yoast SEO v23.0) - 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