CVE-2000-1053 in JRun
Summary
by MITRE
Allaire JRun 2.3.3 server allows remote attackers to compile and execute JSP code by inserting it via a cross-site scripting (CSS) attack and directly calling the com.livesoftware.jrun.plugins.JSP JSP servlet.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 12/25/2024
The vulnerability described in CVE-2000-1053 represents a critical security flaw in Allaire JRun 2.3.3 web application server that enables remote code execution through a sophisticated cross-site scripting attack vector. This vulnerability operates by exploiting the server's handling of JSP (JavaServer Pages) code execution, specifically targeting the com.livesoftware.jrun.plugins.JSP servlet component that processes JSP requests. The flaw essentially allows attackers to inject malicious JavaScript code that can be executed within the context of the web server, creating a pathway for arbitrary code execution on the target system.
The technical implementation of this vulnerability relies on the server's insufficient input validation and sanitization mechanisms. When an attacker successfully injects malicious code through a CSS attack vector, the JRun server processes the injected JSP code without proper security controls, allowing the malicious payload to be compiled and executed directly by the JSP servlet. This represents a fundamental failure in the server's security architecture where user-supplied input is not properly filtered or escaped before being processed. The vulnerability is categorized under CWE-94, which specifically addresses "Improper Control of Generation of Code ('Code Injection')" and aligns with ATT&CK technique T1190 for "Exploit Public-Facing Application" and T1059.007 for "Command and Scripting Interpreter: JavaScript."
The operational impact of this vulnerability is severe and far-reaching for any organization utilizing Allaire JRun 2.3.3. Attackers can leverage this flaw to gain complete control over the affected web server, potentially leading to data breaches, system compromise, and unauthorized access to sensitive information. The vulnerability allows for privilege escalation and persistent access to the compromised system, making it particularly dangerous for web applications handling confidential data. Organizations running this vulnerable server version face significant risk of unauthorized code execution, which could result in complete system takeover, data exfiltration, and potential lateral movement within the network infrastructure.
Mitigation strategies for this vulnerability require immediate action to address the underlying security flaws in the JRun server implementation. Organizations should upgrade to a patched version of Allaire JRun that properly validates and sanitizes user input before processing JSP code. Additionally, implementing proper input validation controls, output encoding, and web application firewalls can help prevent injection attacks. Network segmentation and access controls should be enforced to limit exposure of vulnerable applications, while regular security audits and penetration testing can help identify similar vulnerabilities in other web applications. The fix should include comprehensive logging and monitoring capabilities to detect and respond to suspicious activities targeting the JSP servlet component, ensuring that any attempts to exploit this vulnerability are properly identified and mitigated.