CVE-2025-52642 in AION
Summary
by MITRE • 03/16/2026
HCL AION is affected by a vulnerability where internal filesystem paths may be exposed through application responses or system behaviour. Exposure of internal paths may reveal environment structure details which could potentially aid in further targeted attacks or information disclosure.
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Analysis
by VulDB Data Team • 03/23/2026
The vulnerability identified as CVE-2025-52642 affects HCL AION systems and represents a critical information disclosure flaw that stems from improper handling of internal filesystem paths within application responses. This weakness allows attackers to gain unauthorized visibility into the underlying system architecture through various application behaviors and response mechanisms. The exposure occurs when internal directory structures, file paths, or system-level information inadvertently appears in application outputs, logs, or error messages, creating a significant security risk that can be exploited by malicious actors.
This vulnerability directly maps to CWE-209, which specifically addresses the exposure of internal implementation details through error messages or application responses. The flaw demonstrates poor input validation and output sanitization practices where the system fails to properly filter or sanitize internal path references before returning them to external clients. The issue manifests when the application processes user requests and inadvertently incorporates system-level path information into its responses, creating a window for attackers to understand the target environment's structure and organization.
The operational impact of this vulnerability extends beyond simple information disclosure, as it provides attackers with crucial reconnaissance data that can be leveraged for more sophisticated attacks. When internal filesystem paths are exposed, threat actors can map the application's directory structure, identify sensitive file locations, and potentially discover system configurations or deployment patterns that would otherwise remain hidden. This information can significantly aid in planning subsequent attacks, including path traversal exploits, privilege escalation attempts, or targeted file access operations that rely on understanding the underlying system architecture.
From an attack perspective, this vulnerability aligns with several ATT&CK techniques including T1083 (File and Directory Discovery) and T1592 (Resource Hijacking) where adversaries seek to understand system environments before launching more targeted operations. The exposure creates opportunities for attackers to perform reconnaissance activities more effectively, as they can quickly identify potential attack vectors without extensive manual exploration. The vulnerability particularly affects systems where the application interacts with filesystem components or processes user inputs that may trigger internal path resolution.
Mitigation strategies for CVE-2025-52642 should focus on implementing comprehensive input validation and output sanitization mechanisms throughout the application stack. Organizations must ensure that all application responses are filtered to remove or obfuscate any internal path references, particularly in error messages, log outputs, and debugging information. Security measures should include implementing proper exception handling that prevents internal implementation details from being exposed to end users or external systems. Additionally, regular code reviews should be conducted to identify potential path exposure points, and system administrators should implement monitoring solutions to detect unusual access patterns that might indicate exploitation attempts. The remediation process should also include comprehensive testing to verify that no internal filesystem paths are inadvertently exposed through any application behavior or response mechanism.