CVE-2016-0231 in Financial Transaction Manager
Summary
by MITRE
IBM Financial Transaction Manager (FTM) for ACH Services, Check Services and Corporate Payment Services (CPS) 3.0.0 before FP12 allows remote authenticated users to obtain sensitive information by reading exception details in error logs.
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Analysis
by VulDB Data Team • 02/01/2019
The vulnerability identified as CVE-2016-0231 affects IBM Financial Transaction Manager versions 3.0.0 through FP11, specifically impacting ACH Services, Check Services, and Corporate Payment Services components. This security flaw represents a significant information disclosure vulnerability that could expose sensitive system data to unauthorized users. The issue arises from inadequate error handling mechanisms within the financial transaction processing framework, where exception details are inadvertently logged in a manner that reveals confidential information to authenticated attackers who can access these logs.
The technical flaw stems from the application's improper handling of error conditions during transaction processing operations. When system exceptions occur, the error logging mechanism includes detailed exception stack traces and internal system information in the log files without proper sanitization or access controls. This design flaw creates an information disclosure vector where authenticated users can access these logs and extract sensitive data including system paths, internal data structures, transaction identifiers, and potentially business logic details. The vulnerability operates under the weakness category of CWE-200, which specifically addresses improper exposure of sensitive information, and aligns with ATT&CK technique T1213.002 for data from information repositories.
The operational impact of this vulnerability extends beyond simple information disclosure, as the exposed data could enable attackers to perform more sophisticated attacks including system reconnaissance, transaction manipulation, and potentially financial fraud. An attacker with valid credentials could leverage this vulnerability to gain insights into the underlying transaction processing architecture, which could then be used to craft more targeted attacks against the financial services infrastructure. The vulnerability affects organizations processing financial transactions through IBM FTM, potentially exposing sensitive customer data, transaction records, and system configuration details that could compromise the integrity and confidentiality of financial operations. The risk is particularly elevated in environments where multiple users share access credentials or where log files are not properly secured and monitored.
Mitigation strategies for CVE-2016-0231 should focus on implementing proper error handling and log sanitization procedures within the IBM Financial Transaction Manager environment. Organizations should apply the official IBM fix pack FP12 or higher to resolve the vulnerability, which includes enhanced error logging mechanisms that prevent sensitive information from being exposed in exception details. Additionally, access controls should be strengthened around log files to ensure only authorized administrative personnel can access these resources. System administrators should implement log monitoring and alerting mechanisms to detect unauthorized access attempts to sensitive log files, while also establishing regular log review procedures to identify potential security incidents. The implementation of proper input validation and error handling practices, aligned with industry standards such as those recommended by the Open Web Application Security Project, would further reduce the attack surface and prevent similar vulnerabilities from occurring in other components of the financial transaction processing infrastructure.