CVE-2016-3088 in ActiveMQ
Summary
by MITRE
The Fileserver web application in Apache ActiveMQ 5.x before 5.14.0 allows remote attackers to upload and execute arbitrary files via an HTTP PUT followed by an HTTP MOVE request.
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Analysis
by VulDB Data Team • 04/23/2026
The vulnerability described in CVE-2016-3088 represents a critical security flaw in Apache ActiveMQ's Fileserver web application component that affects versions prior to 5.14.0. This vulnerability stems from improper input validation and insufficient access controls within the file upload mechanism, creating a pathway for remote attackers to execute arbitrary code on affected systems. The flaw specifically leverages the HTTP PUT and MOVE methods to facilitate unauthorized file operations, demonstrating a significant oversight in the application's security architecture that could lead to complete system compromise.
The technical implementation of this vulnerability exploits the Fileserver web application's handling of HTTP methods, particularly the PUT and MOVE operations that are typically used for file management tasks. Attackers can first use the PUT method to upload a malicious file to the server, followed by a MOVE request to relocate or rename the uploaded file to an executable location within the web application's directory structure. This two-step process bypasses normal file validation mechanisms and allows attackers to place malicious code in locations where it can be executed by the web server. The vulnerability resides in the application's failure to properly validate file types and enforce access controls during these operations, creating a persistent backdoor for malicious actors.
The operational impact of this vulnerability is severe and far-reaching, as it provides attackers with complete control over affected Apache ActiveMQ servers. Successful exploitation enables remote code execution, allowing threat actors to install backdoors, exfiltrate sensitive data, or use the compromised system as a launch point for further attacks within the network. Organizations running vulnerable versions of ActiveMQ face significant risk of data breaches, service disruption, and potential lateral movement attacks that could compromise entire enterprise infrastructures. The vulnerability is particularly dangerous because it requires minimal privileges to exploit and can be automated through common web attack frameworks, making it an attractive target for both skilled and less sophisticated attackers.
Organizations should immediately implement mitigations including upgrading to Apache ActiveMQ version 5.14.0 or later, which contains patches addressing this vulnerability. Network-level protections such as firewall rules that block unnecessary HTTP methods, particularly PUT and MOVE operations, can provide additional defense-in-depth. Security teams should also implement proper access controls and authentication mechanisms to restrict file upload capabilities to authorized users only. The vulnerability aligns with CWE-434 which describes insecure file upload scenarios, and maps to ATT&CK technique T1190 for exploiting vulnerabilities in web applications. Regular security assessments and penetration testing should be conducted to identify similar insecure configurations in other web applications and ensure that proper input validation and access control mechanisms are in place across the entire infrastructure.