CVE-2024-23569 in Aftermarket EPC
Summary
by MITRE • 07/17/2026
HCL Aftermarket EPC is vulnerable to attack since the server is not configured with “X-XSS-Protection" header
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Analysis
by VulDB Data Team • 07/17/2026
The vulnerability in HCL Aftermarket EPC stems from the absence of proper security headers, specifically the missing X-XSS-Protection header which serves as a critical defense mechanism against cross-site scripting attacks. This configuration oversight creates an exploitable weakness in the web application's security posture that directly violates established security best practices and industry standards.
The technical flaw manifests as a missing HTTP response header that would normally instruct modern web browsers to implement automatic XSS protection mechanisms. Without this header, browsers cannot effectively mitigate potential XSS vulnerabilities that might exist elsewhere in the application's codebase. The X-XSS-Protection header typically contains directives such as "1; mode=block" which enables the browser's built-in XSS filter and prevents the execution of malicious scripts. This vulnerability aligns with CWE-16 Configuration and represents a fundamental security misconfiguration that exposes the application to various attack vectors.
The operational impact of this missing security header extends beyond simple script injection attacks, as it provides attackers with an easier path to exploit other potential vulnerabilities within the application. Adversaries can leverage this weakness to perform session hijacking, steal sensitive data, or escalate privileges by executing malicious scripts against authenticated users. The vulnerability creates a chain reaction that could be exploited in conjunction with other weaknesses, making it particularly dangerous in enterprise environments where sensitive data processing occurs. This misconfiguration significantly reduces the application's resilience against common web-based attacks and undermines the organization's overall security framework.
Mitigation strategies should focus on implementing proper HTTP headers across all application responses through centralized configuration management. The solution involves configuring the web server or application framework to include the X-XSS-Protection header with appropriate values such as "1; mode=block" or "1; report=<uri>" for reporting XSS attempts. Organizations should also implement comprehensive security header policies that include Content Security Policy, Strict-Transport-Security, and Frame-Options headers to create a multi-layered defense approach. Regular security audits and automated vulnerability scanning should be conducted to ensure compliance with security standards like OWASP Top Ten and NIST Cybersecurity Framework. This remediation aligns with ATT&CK technique T1071.004 for Application Layer Protocol: DNS and demonstrates the importance of proper header configuration in preventing exploitation of web application vulnerabilities through defensive programming practices.