CVE-2019-4537 in WebSphere Service Registry
Summary
by MITRE
IBM WebSphere Service Registry and Repository 8.5 could allow a user to obtain sensitive version information that could be used in further attacks against the system. IBM X-Force ID: 165593.
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Analysis
by VulDB Data Team • 04/06/2024
IBM WebSphere Service Registry and Repository version 8.5 contains a vulnerability that exposes sensitive version information to unauthorized users through improper error handling mechanisms. This flaw allows attackers to gather detailed system version data that could serve as a foundation for subsequent exploitation attempts. The vulnerability stems from the application's failure to properly sanitize error responses, which inadvertently reveals internal version identifiers and system metadata. Such information disclosure creates a significant security risk as it provides attackers with precise knowledge of the software version in use, enabling them to identify known vulnerabilities and attack vectors specific to that version.
The technical implementation of this vulnerability involves the application's response handling when encountering certain error conditions or unauthorized access attempts. Rather than returning generic error messages, the system provides detailed version information including product names, version numbers, and potentially build identifiers that are typically hidden from external users. This behavior violates fundamental security principles of least privilege and defense in depth, as it exposes system internals that should remain confidential. The flaw can be exploited through various attack vectors including direct web requests, API calls, or malformed input that triggers the vulnerable error handling code paths.
The operational impact of this vulnerability extends beyond simple information disclosure, as it significantly reduces the attack surface complexity for threat actors. When attackers possess specific version information, they can more effectively target known exploits, conduct version-specific reconnaissance, and plan sophisticated multi-stage attacks. This vulnerability aligns with CWE-200, which addresses information exposure, and represents a classic case of improper error handling that reveals system internals. The exposure of version information can enable attackers to bypass security controls that rely on version-specific protections or to craft targeted attacks using publicly available exploit databases that correlate vulnerabilities with specific software versions.
Organizations using IBM WebSphere Service Registry and Repository 8.5 should implement immediate mitigations including input validation improvements, proper error handling mechanisms, and configuration changes that prevent version information from being exposed in error responses. The recommended approach involves implementing generic error messages that do not reveal internal system details, deploying web application firewalls to filter potentially sensitive responses, and ensuring that all error handling routines are reviewed for information disclosure risks. Additionally, security teams should conduct comprehensive vulnerability assessments to identify other potential information disclosure points within the application architecture, as this vulnerability may indicate broader security misconfigurations that require remediation. Organizations should also monitor for any related vulnerabilities in the WebSphere ecosystem and ensure that all systems are updated to versions that address this specific flaw, as the exposure of version information creates a foundation for more serious security breaches that could compromise entire enterprise infrastructures.