CVE-2024-23567 in Aftermarket EPC
Summary
by MITRE • 07/17/2026
HCL Aftermarket EPC is affected by Sensitive Information in GET method & in URL which allows application to pass sensitive data via URL parameters during normal usage. Data passed in this manner can be exposed because it may end up stored in unintended locations, including server logs, local browser history and proxy logs.
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Analysis
by VulDB Data Team • 07/17/2026
This vulnerability represents a critical security flaw in the HCL Aftermarket EPC system where sensitive information is inadvertently transmitted through GET requests and URL parameters. The issue stems from improper handling of confidential data within the application's communication protocols, allowing attackers to potentially intercept and access sensitive information through standard web traffic analysis. When applications encode sensitive data into URL parameters for transmission, this creates an attack surface that violates fundamental security principles of data protection during transit. The vulnerability directly aligns with CWE-200, which addresses the exposure of sensitive information, and specifically manifests as a weakness in how the system manages authentication tokens, session identifiers, or other confidential data elements.
The operational impact of this vulnerability extends beyond simple information disclosure, as it creates persistent exposure risks across multiple attack vectors. Server logs typically capture full URL requests including query parameters, meaning that sensitive data becomes permanently stored in log files accessible to system administrators and potentially attackers with access to these systems. Browser history mechanisms also retain these URLs, creating a local persistence vector where users might inadvertently expose sensitive information through their browsing records. Additionally, proxy servers and network monitoring tools commonly capture HTTP traffic, including URL parameters, which means that sensitive data flows through intermediate systems without proper encryption or sanitization. This exposure scenario fundamentally violates the principle of least privilege and creates opportunities for credential theft, session hijacking, or corporate espionage.
The risk assessment for this vulnerability indicates a high-severity threat due to the automated nature of exposure across multiple system components. Attackers can leverage simple traffic interception techniques to harvest sensitive information from URL parameters, making this vector particularly dangerous in environments where network monitoring is prevalent. The vulnerability enables adversaries to perform reconnaissance activities without requiring sophisticated attack tools or deep system access. From an att&ck framework perspective, this weakness maps to technique t1567 002 which involves the interception of credentials through network traffic analysis and t1071 004 which covers application layer protocol communication over unencrypted channels. Organizations utilizing HCL Aftermarket EPC systems face significant compliance risks as this vulnerability likely violates various regulatory frameworks including pci dss requirement 3 4 which mandates protection of cardholder data, and gdpr article 32 which requires appropriate technical and organizational measures to ensure data security.
Mitigation strategies should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application architecture. The most effective approach involves eliminating the transmission of sensitive data through URL parameters by implementing POST requests for all authentication and sensitive operations. Organizations must also implement robust log sanitization processes that automatically strip or encrypt URL parameters before storage in system logs. Browser-based security enhancements including the use of secure http headers such as content security policy and strict transport security can help reduce exposure risks. Additionally, implementing proper session management protocols with automatic token rotation and secure cookie attributes will minimize the impact if exposure does occur. Network-level protections such as web application firewalls should be configured to detect and block suspicious URL parameter patterns, while regular security audits must include comprehensive testing of all application endpoints for improper data transmission practices. The implementation of end-to-end encryption for sensitive communications and mandatory secure coding practices during development cycles will ensure long-term protection against similar vulnerabilities in future system iterations.