CVE-2016-5898 in Jazz Reporting Service
Summary
by MITRE
IBM Jazz Reporting Service (JRS) could allow a remote attacker to obtain sensitive information, caused by not restricting JSON serialization. By sending a direct request, an attacker could exploit this vulnerability to obtain sensitive information.
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Analysis
by VulDB Data Team • 08/09/2020
The vulnerability identified as CVE-2016-5898 affects IBM Jazz Reporting Service which is part of the IBM SmartCloud Application Performance Management suite. This service provides reporting capabilities for application performance data within IBM's enterprise monitoring ecosystem. The flaw stems from inadequate input validation and output filtering mechanisms within the JSON serialization process, creating a pathway for unauthorized information disclosure. The vulnerability specifically manifests when the service processes requests that trigger JSON data generation, where sensitive information inadvertently becomes exposed through the serialized output format.
The technical implementation of this vulnerability resides in the improper handling of data serialization within the JRS component. When the system processes certain API requests or report generation commands, it fails to properly sanitize or restrict the data being serialized into JSON format. This weakness allows an attacker to craft specific requests that bypass normal access controls and retrieve data that should otherwise be restricted. The flaw operates at the application layer and can be exploited remotely without requiring authentication, making it particularly dangerous in networked environments where the service is accessible over the internet. The vulnerability aligns with CWE-200, which catalogs weaknesses related to information exposure, and represents a classic case of insufficient output filtering where sensitive data flows through the system uncontrolled.
The operational impact of this vulnerability extends beyond simple information disclosure, as the exposed data could include sensitive configuration details, user credentials, system metadata, or performance metrics that reveal critical infrastructure information. Attackers could leverage this vulnerability to gather intelligence for more sophisticated attacks, potentially leading to privilege escalation or lateral movement within the network. The remote exploitation capability means that attackers do not need physical access to the system or network to exploit this flaw, significantly expanding the attack surface. Organizations using IBM Jazz Reporting Service would face potential compliance violations and security breaches if this vulnerability remains unaddressed, particularly in regulated environments where data protection is paramount.
Organizations should implement immediate mitigations including applying the vendor-provided security patches and updates released by IBM to address this vulnerability. Network segmentation and access controls should be strengthened to limit exposure of the JRS service to only authorized systems and users. Regular security assessments and penetration testing should be conducted to identify similar serialization flaws in other components of the application stack. The vulnerability demonstrates the importance of implementing proper input validation and output filtering mechanisms, particularly when dealing with data serialization formats like JSON that are commonly used in web services and APIs. Security monitoring should be enhanced to detect unusual patterns of requests that might indicate exploitation attempts. This case underscores the critical need for comprehensive security testing throughout the software development lifecycle to identify and remediate information exposure vulnerabilities before they can be exploited by malicious actors.