{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/tags/meterpreter/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[],"_cs_exploited":false,"_cs_products":["Confluence Data Center","Confluence Server","Splunk Enterprise","Splunk Enterprise Security","Splunk Cloud"],"_cs_severities":["critical"],"_cs_tags":["confluence","metasploit","meterpreter","plugin","exploitation","attack"],"_cs_type":"advisory","_cs_vendors":["Atlassian","Splunk"],"content_html":"\u003cp\u003eThis threat brief addresses the exploitation of Atlassian Confluence servers using a Metasploit module that deploys a malicious Java plugin. The attack begins with the deployment of a specially crafted plugin to the Confluence server. This plugin is designed to execute arbitrary code, and the Metasploit module leverages this to download and execute Meterpreter. Successful exploitation grants the attacker complete control over the Confluence server. Defenders should be aware that successful exploitation provides a foothold for lateral movement and data exfiltration.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eThe attacker exploits a vulnerability in Atlassian Confluence via a Metasploit module (T1190).\u003c/li\u003e\n\u003cli\u003eA malicious Java plugin is uploaded to the Confluence server, typically through a web request.\u003c/li\u003e\n\u003cli\u003eThe Confluence server executes the malicious plugin within the Java Runtime Environment (\u003ccode\u003ejava.exe\u003c/code\u003e).\u003c/li\u003e\n\u003cli\u003eThe plugin initiates a network connection to download Meterpreter.\u003c/li\u003e\n\u003cli\u003eMeterpreter is downloaded to a temporary directory, often within the \u003ccode\u003eAppData\\\\Local\\\\Temp\u003c/code\u003e path.\u003c/li\u003e\n\u003cli\u003eMeterpreter executes, establishing a reverse shell to the attacker\u0026rsquo;s command and control (C2) server.\u003c/li\u003e\n\u003cli\u003eThe attacker gains full control over the Confluence server, enabling further exploitation activities.\u003c/li\u003e\n\u003cli\u003eThe attacker may leverage this access for lateral movement, data exfiltration, or deploying ransomware.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of Atlassian Confluence servers through malicious plugins can lead to complete system compromise. This can result in the loss of sensitive data, disruption of services, and potential lateral movement to other systems within the network. Due to the widespread use of Confluence in enterprise environments, a successful attack can impact numerous organizations.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDeploy the Sigma rule \u003ccode\u003eDetect Metasploit Confluence Plugin Execution\u003c/code\u003e to detect malicious java plugin execution used by metasploit for Atlassian Confluence exploitation.\u003c/li\u003e\n\u003cli\u003eMonitor process execution for \u003ccode\u003ejava.exe\u003c/code\u003e spawning processes from temporary directories (\u003ccode\u003eAppData\\\\Local\\\\Temp\u003c/code\u003e) as a potential indicator of malicious plugin activity, which is covered in the Sigma rule \u003ccode\u003eDetect Metasploit Confluence Plugin Execution\u003c/code\u003e.\u003c/li\u003e\n\u003cli\u003eImplement network monitoring to detect outbound connections from Confluence servers to unusual or suspicious IP addresses, potentially indicating Meterpreter C2 communication.\u003c/li\u003e\n\u003cli\u003eReview and patch Atlassian Confluence instances for known vulnerabilities that may be exploited by Metasploit modules, referencing the analytic story \u003ccode\u003eConfluence Data Center and Confluence Server Vulnerabilities\u003c/code\u003e.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2024-01-03T12:00:00Z","date_published":"2024-01-03T12:00:00Z","id":"/briefs/2024-01-metasploit-confluence-plugin/","summary":"A Metasploit module exploits Atlassian Confluence servers by deploying a malicious Java plugin that downloads Meterpreter, granting the attacker full control over the compromised system.","title":"Metasploit Exploitation via Malicious Confluence Plugin","url":"https://feed.craftedsignal.io/briefs/2024-01-metasploit-confluence-plugin/"}],"language":"en","title":"CraftedSignal Threat Feed — Meterpreter","version":"https://jsonfeed.org/version/1.1"}