CVE-2026-56568 in iControl
Summary
by MITRE • 07/31/2026
HCL iControl was affected by Information Exposure Through Verbose Client-Side API Error Messages vulnerabilities. It involves application displays raw server/API error messages to users instead of generic error messages and exposes internal endpoint names, request parameters, error codes, and authentication status
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Analysis
by VulDB Data Team • 07/31/2026
The vulnerability in HCL iControl represents a critical information disclosure weakness that falls under the CWE-209 category known as "Information Exposure Through Verbose Client-Side API Error Messages." This flaw allows attackers to gain unauthorized insights into the system's internal architecture and operational details by exploiting the application's tendency to display raw server error messages directly to end users. When the iControl interface encounters an error during API interactions, instead of presenting a generic error response that obscures system internals, it reveals detailed technical information including endpoint names, request parameters, authentication status, and specific error codes. This exposure creates a significant security risk as it provides malicious actors with valuable reconnaissance data that can be leveraged for further exploitation attempts.
The operational impact of this vulnerability extends beyond simple information disclosure and aligns with ATT&CK technique T1212 which focuses on exploitation of system information discovery. Attackers can use the exposed endpoint names to map the application's API structure and identify potential attack vectors within the iControl framework. The revelation of request parameters allows threat actors to craft more sophisticated attacks by understanding the expected data formats and input validation mechanisms. Authentication status information exposes whether certain operations require authentication, potentially enabling attackers to bypass security controls or target specific authentication flows with greater precision. The exposure of error codes provides insights into the underlying system implementation, helping attackers understand how errors are handled and potentially identify additional vulnerabilities in the error handling logic.
This vulnerability creates a pathway for attackers to perform advanced reconnaissance activities that would otherwise be difficult or impossible without such detailed information disclosure. The exposure of internal endpoint names allows adversaries to understand the application's API surface area and potentially discover undocumented or less-protected endpoints that may contain sensitive functionality. Request parameter details reveal the expected input formats, which can help attackers craft targeted payloads for injection attacks or other exploit techniques. The authentication status information can be used to identify which operations require valid credentials, enabling attackers to focus their efforts on authentication bypass attempts or to understand the application's access control mechanisms. This comprehensive exposure of system internals significantly reduces the attack surface complexity and provides threat actors with the information needed to plan more effective exploitation strategies.
Mitigation strategies should focus on implementing proper error handling practices that sanitize all error responses before they reach end users. Organizations should implement generic error messages that do not reveal internal system details while still providing useful feedback to legitimate users. The implementation of centralized error handling mechanisms can ensure consistent error response formatting across all API endpoints and eliminate the exposure of raw server errors. Security controls should be enhanced to log detailed error information internally for debugging purposes while presenting sanitized responses to clients. Regular security testing and code reviews should specifically target error handling implementations to identify and remediate similar issues. Additionally, implementing proper input validation and authentication status checks can help reduce the amount of sensitive information exposed through error messages, aligning with defense-in-depth principles that prevent attackers from gaining excessive system insights through multiple attack vectors.