CVE-2016-0232 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 README files.
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Analysis
by VulDB Data Team • 02/02/2019
The vulnerability identified as CVE-2016-0232 affects IBM Financial Transaction Manager version 3.0.0 prior to Fix Pack 12, specifically impacting ACH Services, Check Services, and Corporate Payment Services components. This security flaw represents a critical information disclosure vulnerability that enables remote authenticated attackers to access sensitive data through the reading of README files. The vulnerability stems from inadequate access controls and improper file permissions within the IBM FTM software distribution, creating an unintended pathway for unauthorized data exposure.
The technical exploitation of this vulnerability occurs through the manipulation of file access permissions and directory traversal mechanisms within the IBM Financial Transaction Manager environment. Attackers with valid authentication credentials can leverage their access to read sensitive documentation files that contain confidential information about system configurations, operational procedures, and potentially system vulnerabilities. This represents a classic case of improper access control where the software fails to properly restrict access to documentation files that contain sensitive operational data, violating fundamental security principles of least privilege and principle of least exposure.
The operational impact of this vulnerability extends beyond simple information disclosure, as the README files may contain detailed system configurations, database connection strings, API endpoints, and other sensitive operational details that could facilitate further attacks. The exposure of such information creates opportunities for attackers to escalate their privileges, conduct targeted attacks against specific system components, or develop more sophisticated exploitation strategies. This vulnerability particularly affects financial transaction processing environments where the exposure of system configurations could lead to broader security compromise and regulatory compliance violations.
Organizations utilizing IBM Financial Transaction Manager should implement immediate mitigations including applying the vendor-provided fix pack 12, reviewing and tightening file access controls for documentation files, and implementing proper access control policies that restrict access to sensitive system documentation. The vulnerability aligns with CWE-200, which describes improper exposure of sensitive information, and represents a clear violation of the principle of least privilege. From an ATT&CK perspective, this vulnerability maps to techniques involving information discovery and credential access, as attackers can use the exposed information to better understand the target environment and potentially identify additional attack vectors. Organizations should also conduct comprehensive security audits to identify similar information disclosure vulnerabilities in their financial transaction processing systems and implement proper file permission controls to prevent unauthorized access to sensitive operational documentation.