{"id":18528,"date":"2021-10-04T07:53:00","date_gmt":"2021-10-04T07:53:00","guid":{"rendered":"https:\/\/nsfocusglobal.com\/?p=18528"},"modified":"2021-10-04T07:53:00","modified_gmt":"2021-10-04T07:53:00","slug":"atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert","status":"publish","type":"post","link":"https:\/\/nsfocusglobal.com\/pt-br\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\/","title":{"rendered":"Atlassian Confluence Remote Code Execution Vulnerability (CVE-2021-26084) Threat Alert"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Overview<\/h2>\n\n\n\n<p>Recently, NSFOCUS CERT found that Atlassian released a security bulletin to announce the fix of the Confluence Server Webwork OGNL Injection Vulnerability (CVE-2021-26084). This vulnerability allows an authenticated attacker, and in some instances, an unauthenticated user, to execute arbitrary code on Confluence Server or Data Center by injecting a crafted OGNL expression. This vulnerability is assigned a CVSS score of 9.8. Affected users should take preventive measures as soon as possible.<\/p>\n\n\n\n<p>Atlassian Confluence is a professional wiki program provided by Atlassian. It is a knowledge management tool that enables team collaboration and knowledge sharing.<\/p>\n\n\n\n<p>Reference link: <a href=\"https:\/\/confluence.atlassian.com\/doc\/confluence-security-advisory-2021-08-25-1077906215.html\">https:\/\/confluence.atlassian.com\/doc\/confluence-security-advisory-2021-08-25-1077906215.html<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Scope of Impact<\/h2>\n\n\n\n<p><strong>Affected Versions<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Confluence &lt; 6.13.23<\/li><li>6.14.0 \u2264 Confluence &lt; 7.4.11<\/li><li>7.5.0 \u2264 Confluence &lt; 7.11.6<\/li><li>7.12.0 \u2264 Confluence &lt; 7.12.5<\/li><li>Confluence &lt; 7.13.0<\/li><\/ul>\n\n\n\n<p><strong>Unaffected Versions<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Confluence = 6.13.23<\/li><li>Confluence = 7.4.11<\/li><li>Confluence = 7.11.6<\/li><li>Confluence = 7.12.5<\/li><li>Confluence = 7.13.0<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Vulnerability Check<\/h2>\n\n\n\n<p><strong>Manual Check<\/strong><\/p>\n\n\n\n<p>Users can check the current Confluence version to determine whether it is affected. For this purpose, users can select <strong>About Confluence<\/strong> to check the current version of Confluence.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Mitigation<\/h2>\n\n\n\n<p><strong>Official Fix<\/strong><\/p>\n\n\n\n<p>Users are advised to upgrade Confluence Server and Confluence Data Center to the latest version to ensure the security and stability of this service.<\/p>\n\n\n\n<p>Download link: <a href=\"https:\/\/www.atlassian.com\/software\/confluence\/download-archives\">https:\/\/www.atlassian.com\/software\/confluence\/download-archives<\/a><\/p>\n\n\n\n<p>If users cannot upgrade to the latest version for the time being, they can upgrade it to a version that has this vulnerability fixed, as shown in the following table:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Affected Version<\/strong><strong><\/strong><\/td><td><strong>Version with the Vulnerability Fixed<\/strong><\/td><\/tr><tr><td>6.13.x<\/td><td>6.13.23<\/td><\/tr><tr><td>7.4.x<\/td><td>7.4.11<\/td><\/tr><tr><td>7.11.x<\/td><td>7.11.6<\/td><\/tr><tr><td>7.12.x<\/td><td>7.12.5<\/td><\/tr><tr><td>Other earlier versions<\/td><td>6.13.23, 7.4.11, 7.11.6, or 7.12.5<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Workaround<\/strong><\/p>\n\n\n\n<p>If users are unable to upgrade the products immediately, run the following scripts on the operating system on which Confluence is hosted:<\/p>\n\n\n\n<p><a href=\"https:\/\/confluence.atlassian.com\/doc\/confluence-security-advisory-2021-08-25-1077906215.html?spm=a2c4g.11174386.n2.3.1f8c4c07XTPS08#\">https:\/\/confluence.atlassian.com\/doc\/confluence-security-advisory-2021-08-25-1077906215.html?spm=a2c4g.11174386.n2.3.1f8c4c07XTPS08#<\/a><\/p>\n\n\n\n<p><strong>Confluence server on a Linux-based operating system:<\/strong><\/p>\n\n\n\n<p>If you run Confluence in a cluster, repeat this process on each node. You don&#8217;t need to shut down the whole cluster.<\/p>\n\n\n\n<p>1. Shut down Confluence. <\/p>\n\n\n\n<p>2. Download <a href=\"https:\/\/confluence.atlassian.com\/doc\/files\/1077906215\/1077916296\/2\/1629936383093\/cve-2021-26084-update.sh\">cve-2021-26084-update.sh<\/a> to the Confluence Linux server:<\/p>\n\n\n\n<p class=\"has-background has-very-light-gray-background-color\"><a href=\"https:\/\/confluence.atlassian.com\/doc\/files\/1077906215\/1077916296\/2\/1629936383093\/cve-2021-26084-update.sh\">https:\/\/confluence.atlassian.com\/doc\/files\/1077906215\/1077916296\/2\/1629936383093\/cve-2021-26084-update.sh<\/a><\/p>\n\n\n\n<p>3. Edit cve-2021-26084-update.sh and set INSTALLATION_DIRECTORY to your Confluence installation directory, for example:<\/p>\n\n\n\n<p class=\"has-background has-very-light-gray-background-color\">INSTALLATION_DIRECTORY=\/opt\/atlassian\/confluence<\/p>\n\n\n\n<p>4. Save the file.<\/p>\n\n\n\n<p>5. Assign the script execution permission.<\/p>\n\n\n\n<p class=\"has-background has-very-light-gray-background-color\">chmod 700 cve-2021-26084-update.sh<\/p>\n\n\n\n<p>6. Change to the Linux user that owns files in the Confluence installation directory, for example:<\/p>\n\n\n\n<div class=\"wp-block-group has-very-light-gray-background-color has-background\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<p>$ ls -l \/opt\/atlassian\/confluence | grep bin<\/p>\n\n\n\n<p>drwxr-xr-x 3 root root 4096 Aug 18 17:07 bin<\/p>\n\n\n\n<p># In this first example, we change to the &#8216;root&#8217; user<\/p>\n\n\n\n<p># to run the workaround script<\/p>\n\n\n\n<p>$ sudo su root<\/p>\n\n\n\n<p>$ ls -l \/opt\/atlassian\/confluence | grep bin<\/p>\n\n\n\n<p>drwxr-xr-x 3 confluence confluence 4096 Aug 18 17:07 bin<\/p>\n\n\n\n<p># In this second example, we need to change to the &#8216;confluence&#8217; user<\/p>\n\n\n\n<p># to run the workaround script<\/p>\n\n\n\n<p>$ sudo su confluence<\/p>\n<\/div><\/div>\n\n\n\n<p>7. Run the workaround script.<\/p>\n\n\n\n<p class=\"has-background has-very-light-gray-background-color\">$ .\/cve-2021-26084-update.sh<\/p>\n\n\n\n<p>8. The expected output should confirm up to five files updated and end with:<\/p>\n\n\n\n<p class=\"has-background has-very-light-gray-background-color\">Update completed!<\/p>\n\n\n\n<p>The number of updated files will differ, depending on your Confluence version.<\/p>\n\n\n\n<p>9. Restart Confluence. If you run Confluence in a cluster, make sure that this script runs on all nodes.<\/p>\n\n\n\n<p><strong>Confluence server on a Windows operating system:<\/strong><\/p>\n\n\n\n<p>If you run Confluence in a cluster, repeat this process on each node. You don&#8217;t need to shut down the whole cluster.<\/p>\n\n\n\n<p>1. Shut down Confluence.<\/p>\n\n\n\n<p>2. Download <a href=\"https:\/\/confluence.atlassian.com\/doc\/files\/1077906215\/1077916298\/2\/1629936382985\/cve-2021-26084-update.ps1\">cve-2021-26084-update.ps1<\/a> to the Confluence Windows server:<\/p>\n\n\n\n<p class=\"has-background has-very-light-gray-background-color\"><a href=\"https:\/\/confluence.atlassian.com\/doc\/files\/1077906215\/1077916298\/2\/1629936382985\/cve-2021-26084-update.ps1\">https:\/\/confluence.atlassian.com\/doc\/files\/1077906215\/1077916298\/2\/1629936382985\/cve-2021-26084-update.ps1<\/a><\/p>\n\n\n\n<p>3. Edit cve-2021-26084-update.ps1 and set INSTALLATION_DIRECTORY. Replace Set_Your_Confluence_Install_Dir_Here with your Confluence installation directory, for example:<\/p>\n\n\n\n<p class=\"has-background has-very-light-gray-background-color\">$INSTALLATION_DIRECTORY=&#8217;C:\\Program Files\\Atlassian\\Confluence&#8217;<\/p>\n\n\n\n<p>4. Save the file.<\/p>\n\n\n\n<p>5. Open Windows PowerShell (and run as administrator).<\/p>\n\n\n\n<p>6. Due to PowerShell&#8217;s default restrictive execution policy, run the PowerShell using this exact command:<\/p>\n\n\n\n<p class=\"has-background has-very-light-gray-background-color\">Get-Content .\\cve-2021-26084-update.ps1 | powershell.exe -noprofile &#8211;<\/p>\n\n\n\n<p>7. The expected output should show the status of up to five files updated, encounter no errors (errors will usually show in red) and end with:<\/p>\n\n\n\n<p class=\"has-background has-very-light-gray-background-color\">Update completed!<\/p>\n\n\n\n<p>The number of updated files will differ, depending on your Confluence version.<\/p>\n\n\n\n<p>8. Restart Confluence. If you run Confluence in a cluster, make sure that this script runs on all nodes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">About NSFOCUS<\/h2>\n\n\n\n<p>NSFOCUS, Inc., a global network and cyber security leader, protects enterprises and carriers from advanced cyber attacks. The company&#8217;s Intelligent Hybrid Security strategy utilizes both cloud and on-premises security platforms, built on a foundation of real-time global threat intelligence, to provide multi-layered, unified and dynamic protection against advanced cyber attacks.<\/p>\n\n\n\n<p>NSFOCUS works with Fortune Global 500 companies, including four of the world&#8217;s five largest financial institutions, organizations in insurance, retail, healthcare, critical infrastructure industries as well as government agencies. NSFOCUS has technology and channel partners in more than 60 countries, is a member of both the Microsoft Active Protections Program (MAPP), and the Cloud Security Alliance (CSA). A wholly owned subsidiary of NSFOCUS Technologies Group Co., Ltd., the company has operations in the Americas, Europe, the Middle East and Asia Pacific.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview Recently, NSFOCUS CERT found that Atlassian released a security bulletin to announce the fix of the Confluence Server Webwork OGNL Injection Vulnerability (CVE-2021-26084). This vulnerability allows an authenticated attacker, and in some instances, an unauthenticated user, to execute arbitrary code on Confluence Server or Data Center by injecting a crafted OGNL expression. This vulnerability [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":18531,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","footnotes":""},"categories":[3,6],"tags":[103,197],"class_list":["post-18528","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-emergency-response","tag-atlassian-jira","tag-cve-2021-26084"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Atlassian Confluence Remote Code Execution Vulnerability (CVE-2021-26084) Threat Alert - NSFOCUS<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Atlassian Confluence Remote Code Execution Vulnerability (CVE-2021-26084) Threat Alert - NSFOCUS\" \/>\n<meta property=\"og:description\" content=\"Overview Recently, NSFOCUS CERT found that Atlassian released a security bulletin to announce the fix of the Confluence Server Webwork OGNL Injection\" \/>\n<meta property=\"og:url\" content=\"https:\/\/nsfocusglobal.com\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\/\" \/>\n<meta property=\"og:site_name\" content=\"NSFOCUS\" \/>\n<meta property=\"article:published_time\" content=\"2021-10-04T07:53:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/nsfocusglobal.com\/wp-content\/uploads\/2021\/09\/atlassian.jpg\" \/>\n<meta name=\"author\" content=\"Jie Ji\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Atlassian Confluence Remote Code Execution Vulnerability (CVE-2021-26084) Threat Alert - NSFOCUS\" \/>\n<meta name=\"twitter:description\" content=\"Overview Recently, NSFOCUS CERT found that Atlassian released a security bulletin to announce the fix of the Confluence Server Webwork OGNL Injection\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/nsfocusglobal.com\/wp-content\/uploads\/2021\/09\/atlassian.jpg\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jie Ji\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. tempo de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\\\/\"},\"author\":{\"name\":\"Jie Ji\",\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/pt-br\\\/#\\\/schema\\\/person\\\/1077d8fcd7e52c96f17a33b63a0d157b\"},\"headline\":\"Atlassian Confluence Remote Code Execution Vulnerability (CVE-2021-26084) Threat Alert\",\"datePublished\":\"2021-10-04T07:53:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\\\/\"},\"wordCount\":818,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/pt-br\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/nsfocusglobal.com\\\/wp-content\\\/uploads\\\/2021\\\/09\\\/atlassian.jpg\",\"keywords\":[\"Atlassian Jira\",\"CVE-2021-26084\"],\"articleSection\":[\"Blog\",\"Emergency Response\"],\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/nsfocusglobal.com\\\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\\\/\",\"url\":\"https:\\\/\\\/nsfocusglobal.com\\\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\\\/\",\"name\":\"Atlassian Confluence Remote Code Execution Vulnerability (CVE-2021-26084) Threat Alert - NSFOCUS\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/pt-br\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/nsfocusglobal.com\\\/wp-content\\\/uploads\\\/2021\\\/09\\\/atlassian.jpg\",\"datePublished\":\"2021-10-04T07:53:00+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\\\/#breadcrumb\"},\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/nsfocusglobal.com\\\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-BR\",\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\\\/#primaryimage\",\"url\":\"https:\\\/\\\/nsfocusglobal.com\\\/wp-content\\\/uploads\\\/2021\\\/09\\\/atlassian.jpg\",\"contentUrl\":\"https:\\\/\\\/nsfocusglobal.com\\\/wp-content\\\/uploads\\\/2021\\\/09\\\/atlassian.jpg\",\"width\":474,\"height\":335,\"caption\":\"Atlassian logo on a blue background.\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/nsfocusglobal.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Atlassian Confluence Remote Code Execution Vulnerability (CVE-2021-26084) Threat Alert\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/pt-br\\\/#website\",\"url\":\"https:\\\/\\\/nsfocusglobal.com\\\/pt-br\\\/\",\"name\":\"NSFOCUS\",\"description\":\"Security Made Smart and Simple\",\"publisher\":{\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/pt-br\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/nsfocusglobal.com\\\/pt-br\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"pt-BR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/pt-br\\\/#organization\",\"name\":\"NSFOCUS\",\"url\":\"https:\\\/\\\/nsfocusglobal.com\\\/pt-br\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-BR\",\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/pt-br\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/nsfocusglobal.com\\\/wp-content\\\/uploads\\\/2024\\\/08\\\/logo-ns.png\",\"contentUrl\":\"https:\\\/\\\/nsfocusglobal.com\\\/wp-content\\\/uploads\\\/2024\\\/08\\\/logo-ns.png\",\"width\":248,\"height\":36,\"caption\":\"NSFOCUS\"},\"image\":{\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/pt-br\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/pt-br\\\/#\\\/schema\\\/person\\\/1077d8fcd7e52c96f17a33b63a0d157b\",\"name\":\"Jie Ji\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-BR\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/61cb438513c138ce3f1f49e3485f113a0215220de5e284a2bd4e85358f6c8d02?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/61cb438513c138ce3f1f49e3485f113a0215220de5e284a2bd4e85358f6c8d02?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/61cb438513c138ce3f1f49e3485f113a0215220de5e284a2bd4e85358f6c8d02?s=96&d=mm&r=g\",\"caption\":\"Jie Ji\"},\"url\":\"https:\\\/\\\/nsfocusglobal.com\\\/pt-br\\\/author\\\/jji\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Atlassian Confluence Remote Code Execution Vulnerability (CVE-2021-26084) Threat Alert - NSFOCUS","robots":{"index":"noindex","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"og_locale":"pt_BR","og_type":"article","og_title":"Atlassian Confluence Remote Code Execution Vulnerability (CVE-2021-26084) Threat Alert - NSFOCUS","og_description":"Overview Recently, NSFOCUS CERT found that Atlassian released a security bulletin to announce the fix of the Confluence Server Webwork OGNL Injection","og_url":"https:\/\/nsfocusglobal.com\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\/","og_site_name":"NSFOCUS","article_published_time":"2021-10-04T07:53:00+00:00","og_image":[{"url":"https:\/\/nsfocusglobal.com\/wp-content\/uploads\/2021\/09\/atlassian.jpg","type":"","width":"","height":""}],"author":"Jie Ji","twitter_card":"summary_large_image","twitter_title":"Atlassian Confluence Remote Code Execution Vulnerability (CVE-2021-26084) Threat Alert - NSFOCUS","twitter_description":"Overview Recently, NSFOCUS CERT found that Atlassian released a security bulletin to announce the fix of the Confluence Server Webwork OGNL Injection","twitter_image":"https:\/\/nsfocusglobal.com\/wp-content\/uploads\/2021\/09\/atlassian.jpg","twitter_misc":{"Escrito por":"Jie Ji","Est. tempo de leitura":"4 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/nsfocusglobal.com\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\/#article","isPartOf":{"@id":"https:\/\/nsfocusglobal.com\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\/"},"author":{"name":"Jie Ji","@id":"https:\/\/nsfocusglobal.com\/pt-br\/#\/schema\/person\/1077d8fcd7e52c96f17a33b63a0d157b"},"headline":"Atlassian Confluence Remote Code Execution Vulnerability (CVE-2021-26084) Threat Alert","datePublished":"2021-10-04T07:53:00+00:00","mainEntityOfPage":{"@id":"https:\/\/nsfocusglobal.com\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\/"},"wordCount":818,"commentCount":0,"publisher":{"@id":"https:\/\/nsfocusglobal.com\/pt-br\/#organization"},"image":{"@id":"https:\/\/nsfocusglobal.com\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\/#primaryimage"},"thumbnailUrl":"https:\/\/nsfocusglobal.com\/wp-content\/uploads\/2021\/09\/atlassian.jpg","keywords":["Atlassian Jira","CVE-2021-26084"],"articleSection":["Blog","Emergency Response"],"inLanguage":"pt-BR","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/nsfocusglobal.com\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/nsfocusglobal.com\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\/","url":"https:\/\/nsfocusglobal.com\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\/","name":"Atlassian Confluence Remote Code Execution Vulnerability (CVE-2021-26084) Threat Alert - NSFOCUS","isPartOf":{"@id":"https:\/\/nsfocusglobal.com\/pt-br\/#website"},"primaryImageOfPage":{"@id":"https:\/\/nsfocusglobal.com\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\/#primaryimage"},"image":{"@id":"https:\/\/nsfocusglobal.com\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\/#primaryimage"},"thumbnailUrl":"https:\/\/nsfocusglobal.com\/wp-content\/uploads\/2021\/09\/atlassian.jpg","datePublished":"2021-10-04T07:53:00+00:00","breadcrumb":{"@id":"https:\/\/nsfocusglobal.com\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\/#breadcrumb"},"inLanguage":"pt-BR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/nsfocusglobal.com\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\/"]}]},{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/nsfocusglobal.com\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\/#primaryimage","url":"https:\/\/nsfocusglobal.com\/wp-content\/uploads\/2021\/09\/atlassian.jpg","contentUrl":"https:\/\/nsfocusglobal.com\/wp-content\/uploads\/2021\/09\/atlassian.jpg","width":474,"height":335,"caption":"Atlassian logo on a blue background."},{"@type":"BreadcrumbList","@id":"https:\/\/nsfocusglobal.com\/atlassian-confluence-remote-code-execution-vulnerability-cve-2021-26084-threat-alert\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/nsfocusglobal.com\/"},{"@type":"ListItem","position":2,"name":"Atlassian Confluence Remote Code Execution Vulnerability (CVE-2021-26084) Threat Alert"}]},{"@type":"WebSite","@id":"https:\/\/nsfocusglobal.com\/pt-br\/#website","url":"https:\/\/nsfocusglobal.com\/pt-br\/","name":"NSFOCUS","description":"Security Made Smart and Simple","publisher":{"@id":"https:\/\/nsfocusglobal.com\/pt-br\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/nsfocusglobal.com\/pt-br\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"pt-BR"},{"@type":"Organization","@id":"https:\/\/nsfocusglobal.com\/pt-br\/#organization","name":"NSFOCUS","url":"https:\/\/nsfocusglobal.com\/pt-br\/","logo":{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/nsfocusglobal.com\/pt-br\/#\/schema\/logo\/image\/","url":"https:\/\/nsfocusglobal.com\/wp-content\/uploads\/2024\/08\/logo-ns.png","contentUrl":"https:\/\/nsfocusglobal.com\/wp-content\/uploads\/2024\/08\/logo-ns.png","width":248,"height":36,"caption":"NSFOCUS"},"image":{"@id":"https:\/\/nsfocusglobal.com\/pt-br\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/nsfocusglobal.com\/pt-br\/#\/schema\/person\/1077d8fcd7e52c96f17a33b63a0d157b","name":"Jie Ji","image":{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/secure.gravatar.com\/avatar\/61cb438513c138ce3f1f49e3485f113a0215220de5e284a2bd4e85358f6c8d02?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/61cb438513c138ce3f1f49e3485f113a0215220de5e284a2bd4e85358f6c8d02?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/61cb438513c138ce3f1f49e3485f113a0215220de5e284a2bd4e85358f6c8d02?s=96&d=mm&r=g","caption":"Jie Ji"},"url":"https:\/\/nsfocusglobal.com\/pt-br\/author\/jji\/"}]}},"_links":{"self":[{"href":"https:\/\/nsfocusglobal.com\/pt-br\/wp-json\/wp\/v2\/posts\/18528","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nsfocusglobal.com\/pt-br\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nsfocusglobal.com\/pt-br\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nsfocusglobal.com\/pt-br\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/nsfocusglobal.com\/pt-br\/wp-json\/wp\/v2\/comments?post=18528"}],"version-history":[{"count":0,"href":"https:\/\/nsfocusglobal.com\/pt-br\/wp-json\/wp\/v2\/posts\/18528\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nsfocusglobal.com\/pt-br\/wp-json\/wp\/v2\/media\/18531"}],"wp:attachment":[{"href":"https:\/\/nsfocusglobal.com\/pt-br\/wp-json\/wp\/v2\/media?parent=18528"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nsfocusglobal.com\/pt-br\/wp-json\/wp\/v2\/categories?post=18528"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nsfocusglobal.com\/pt-br\/wp-json\/wp\/v2\/tags?post=18528"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}