CVE-2024-23575: HCL Aftermarket EPC Info Disclosure Flaw

CVE-2024-23575 Overview

CVE-2024-23575 is an information disclosure vulnerability in HCL Aftermarket EPC. The application returns detailed error messages that leak internal processing information about server-side operations. Attackers can analyze these responses to gather intelligence about the underlying stack, application logic, and data handling. This reconnaissance data enables adversaries to craft more focused follow-on attacks against the target environment.

The issue is classified under CWE-209: Generation of Error Message Containing Sensitive Information. The flaw is remotely exploitable over the network without authentication or user interaction.

Critical Impact
Verbose error responses expose server-side processing details to unauthenticated remote attackers, providing reconnaissance data for targeted follow-up attacks.

Affected Products

HCL Aftermarket EPC (see vendor knowledge base for affected versions)

Discovery Timeline

2026-07-17 - CVE-2024-23575 published to NVD
2026-07-17 - Last updated in NVD database

Technical Details for CVE-2024-23575

Vulnerability Analysis

CVE-2024-23575 stems from improper handling of exceptions and error conditions in HCL Aftermarket EPC. When the application encounters an unexpected input or internal failure, it returns detailed diagnostic content in the HTTP response. This content can include stack traces, database query fragments, internal file paths, framework versions, or logic hints.

The vulnerability affects the confidentiality of server-side implementation details. It does not directly modify data or disrupt service availability. However, the exposed information reduces the effort required to identify additional attack surface. Attackers commonly use error-based reconnaissance to enumerate injection points, identify vulnerable libraries, and refine exploit payloads.

The EPSS score is 0.197% with a percentile of 9.748, indicating a low current probability of exploitation. No public exploit is available at the time of publication, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog.

Root Cause

The root cause is insufficient sanitization of error output before it reaches the client. The application propagates raw exception details rather than returning generic, non-revealing error responses. This design pattern violates secure error handling guidance defined in [CWE-209].

Attack Vector

An unauthenticated attacker sends crafted requests to endpoints exposed by HCL Aftermarket EPC. Malformed parameters, unexpected content types, or invalid session tokens trigger internal exceptions. The server returns verbose error content that the attacker parses to enumerate technology stack details and internal identifiers. The attacker then uses this information to plan targeted attacks such as injection, authentication bypass, or component-specific exploits.

No verified proof-of-concept code has been published. Refer to the HCL Software Knowledge Base Article for vendor guidance.

Detection Methods for CVE-2024-23575

Indicators of Compromise

HTTP responses from HCL Aftermarket EPC containing stack traces, exception class names, or database error strings sent to external clients.
Repeated malformed requests from a single source targeting EPC endpoints and generating server-side errors.
Access log entries showing 4xx or 5xx responses with unusually large response bodies from EPC application paths.

Detection Strategies

Inspect outbound HTTP responses from the EPC application for keywords such as Exception, Traceback, at java., SQLException, or internal file paths.
Correlate spikes in server-side error rates with source IPs performing parameter fuzzing or unusual URL manipulation.
Baseline normal error response sizes and alert on responses that significantly exceed the baseline.

Monitoring Recommendations

Enable application-layer logging that captures full request and response metadata for EPC endpoints.
Forward web server and application logs to a centralized analytics platform to identify reconnaissance patterns across sessions.
Deploy a web application firewall rule set that flags requests generating verbose error responses.

How to Mitigate CVE-2024-23575

Immediate Actions Required

Review the HCL Software Knowledge Base Article and apply the vendor-recommended remediation.
Configure HCL Aftermarket EPC to return generic error pages to end users while logging detailed diagnostics only on the server.
Restrict external access to EPC administrative and diagnostic endpoints where feasible.

Patch Information

HCL has published remediation guidance in the referenced knowledge base article. Administrators should follow the vendor advisory to apply the recommended fixes and configuration changes for HCL Aftermarket EPC.

Workarounds

Enable custom error handling in the application server to suppress stack traces and exception details from HTTP responses.
Deploy a reverse proxy or WAF rule that strips or rewrites detailed error content before it leaves the network perimeter.
Set application logging to production mode and disable debug or verbose output on internet-facing instances.

bash

# Configuration example
# Refer to the HCL vendor advisory for product-specific remediation steps.
# General guidance: disable verbose error output in production configuration.