Lucee Remote Code Execution Scanner

Lucee is an open-source Java-based application server with a focus on server-side scripting in different production environments. It is used by developers and organizations to build and deploy web applications with simplified CFML scripting, commonly employed for content management systems and data-driven HTML projects. Lucee facilitates rapid development and is popular within web development circles due to its flexibility and ease of integration in Java-based systems. It can be embedded or used in standalone mode, offering diverse deployment capabilities. The software is maintained by a vibrant community that ensures continuous improvement and security updates, making it relevant for small to large-scale enterprise usages globally. Lucee is commonly integrated into web hosting setups, functioning as a cornerstone for web application delivery.

The Remote Code Execution vulnerability within Lucee allows an attacker to execute arbitrary code through the application server. This could be due to improper handling of user inputs in code execution mechanisms within the server-side scripting engine. An attacker taking advantage of this flaw could use it to inject malicious code on the server-side, which could then be executed without authorization. Exploiting this vulnerability could result in full control over the server, including file manipulation, process management, and data theft. This critical flaw requires immediate attention to prevent exploitation in systems running affected versions of Lucee. Effective mitigation strategies, including updating to secure versions and enhancing input validation, are essential.

Technical details highlight the vulnerability occurring through specially crafted requests sent to the server where Lucee is running. The vulnerability resides in the handling of certain tags in CFML scripts, particularly when user input is improperly filtered. Exploit code can be injected via HTTP requests and executed in the context of the Lucee server. The inclusion of base64 encoded commands in headers such as "Cookie" shows how attackers can camouflage payloads within legitimate requests. The presence of "cfid" and "cftoken" headers indicates manipulating Lucee's session management. These details underscore the vulnerability's severity and the necessity for prompt security updates.

If this vulnerability is exploited, the potential effects include unauthorized access to server resources, data breaches, and possible service disruptions. Attackers could leverage RCE to manipulate server operations, leading to compromised application functionality and administrative controls. Full server compromise could allow attackers to alter content served to users, potentially spreading malware or further exploiting site visitors. The integrity and confidentiality of hosted applications and data could be severely impacted. Businesses could face reputational damage, regulatory penalties, and financial losses due to exploitation of this flaw.

REFERENCES

• https://blog.projectdiscovery.io/hello-lucee-let-us-hack-apple-again