CVE-2020-4532 in Business Automation Workflow
Summary
by MITRE
IBM Business Automation Workflow and IBM Business Process Manager (IBM Business Process Manager Express 8.5.5, 8.5.6, 8.5.7, and 8.6) could allow a remote attacker to obtain sensitive information when a detailed technical error message is returned in the browser. This information could be used in further attacks against the system. IBM X-Force ID: 182716.
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Analysis
by VulDB Data Team • 10/25/2020
This vulnerability exists within IBM Business Automation Workflow and IBM Business Process Manager products, specifically affecting versions 8.5.5 through 8.6. The flaw manifests when the system returns detailed technical error messages to web browsers, inadvertently exposing sensitive system information that could aid attackers in subsequent exploitation attempts. The vulnerability represents a classic information disclosure issue that undermines the security posture of affected systems by providing attackers with valuable reconnaissance data. Such exposure occurs during error handling scenarios when the application fails to properly sanitize error responses before transmitting them to client browsers. The technical implementation allows for the leakage of internal system details including stack traces, system paths, configuration information, and potentially database connection details that would normally remain hidden from external observers.
The operational impact of this vulnerability extends beyond simple information exposure, as the leaked data could enable attackers to perform more sophisticated attacks targeting the specific version and configuration of the affected software. Cybersecurity frameworks such as CWE-200 categorize this as an information disclosure vulnerability where improper error handling leads to sensitive data exposure. Attackers could leverage the disclosed information to craft targeted attacks against known vulnerabilities in the specific IBM product versions, potentially leading to privilege escalation, data compromise, or system takeover. The vulnerability aligns with ATT&CK technique T1212 which involves exploitation of system information discovery capabilities to gather intelligence for further attacks. Organizations running these versions face increased risk of successful exploitation, particularly when combined with other reconnaissance activities that could identify additional system weaknesses.
Mitigation strategies should focus on implementing proper error handling mechanisms that prevent detailed technical information from being exposed to end users. System administrators should configure the applications to return generic error messages to browsers while logging detailed technical information internally for administrative purposes. IBM has released patches and fixes for this vulnerability that should be applied immediately to affected systems. Organizations should also implement network monitoring to detect unusual error message patterns that might indicate exploitation attempts. The vulnerability demonstrates the importance of secure coding practices and proper input validation, as outlined in OWASP Top 10 security principles. Regular security assessments and penetration testing should be conducted to identify similar error handling issues across the entire application portfolio, ensuring that sensitive information is properly protected from unauthorized disclosure.