CVE-2004-2564 in Server
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in Sambar Server 6.1 Beta 2 on Windows, and possibly other versions on Linux, allow remote attackers to inject arbitrary web script or HTML via (1) the show parameter in show.asp and (2) the title parameter in showperf.asp.
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Analysis
by VulDB Data Team • 10/05/2025
The vulnerability described in CVE-2004-2564 represents a critical cross-site scripting flaw affecting Sambar Server version 6.1 Beta 2 running on Windows platforms and potentially other versions on Linux systems. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is one of the most prevalent and dangerous web application security flaws identified by the CWE organization. The issue stems from insufficient input validation and output encoding mechanisms within the server's web interface components, specifically targeting two distinct script injection points that allow remote attackers to execute malicious code within the context of victim browsers.
The technical exploitation of this vulnerability occurs through two primary attack vectors that leverage the server's handling of user-supplied parameters. The first vector targets the show parameter in the show.asp script, while the second targets the title parameter in the showperf.asp script. Both attack paths demonstrate a classic reflected XSS pattern where malicious input is immediately reflected back to the user without proper sanitization or encoding. When a victim accesses a specially crafted URL containing malicious script code within these parameters, the Sambar Server fails to properly escape or validate the input before rendering it in the web response, thereby executing the injected payload in the victim's browser context. This behavior aligns with ATT&CK technique T1566.001 for Initial Access through Drive-by Compromise, where attackers leverage web application vulnerabilities to deliver malicious payloads.
The operational impact of this vulnerability extends beyond simple script execution, as it provides attackers with the capability to perform session hijacking, deface web pages, steal sensitive cookies, and potentially escalate privileges within the application environment. The vulnerability's presence in both Windows and Linux versions suggests a widespread exposure across different operating systems, indicating that the underlying code implementation issues are not platform-specific. Attackers could leverage this vulnerability to create persistent backdoors, harvest user credentials, or redirect victims to malicious sites for further exploitation. The fact that this vulnerability was discovered in a beta release version demonstrates how insufficient security testing and code review processes can leave critical applications exposed to exploitation before public release.
Mitigation strategies for this vulnerability should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application. Organizations should immediately apply vendor patches if available, as the vulnerability affects a specific server version where remediation is likely provided through official updates. Additionally, implementing proper parameter validation in the affected scripts, specifically sanitizing user inputs before processing, would prevent the injection of malicious scripts. The implementation of Content Security Policy headers and proper HTTP response headers can provide additional defense-in-depth measures. Security teams should also conduct thorough penetration testing and code reviews to identify similar vulnerabilities in other web applications, as this vulnerability demonstrates the importance of input sanitization and output encoding practices that align with OWASP Top Ten security recommendations. The vulnerability serves as a reminder of the critical importance of secure coding practices and the need for comprehensive security testing before deploying web server applications to production environments.