CVE-2020-4566 in Sterling B2B Integrator Standard Edition
Summary
by MITRE • 11/16/2020
IBM Sterling B2B Integrator Standard Edition 5.2.6.0 through 5.2.6.5 and 6.0.0.0 through 6.0.3.2 stores potentially highly sensitive information in log files that could be read by an authenticated user. IBM X-Force ID: 184083.
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Analysis
by VulDB Data Team • 12/08/2020
The vulnerability identified as CVE-2020-4566 affects IBM Sterling B2B Integrator Standard Edition versions 5.2.6.0 through 5.2.6.5 and 6.0.0.0 through 6.0.3.2, representing a critical information disclosure flaw that undermines the security posture of enterprise integration platforms. This vulnerability stems from the improper handling of sensitive data within the system's logging mechanisms, where highly confidential information becomes accessible through log file enumeration by authenticated users. The flaw exists within the platform's logging architecture and represents a failure to implement proper data sanitization and access controls for audit trails. Organizations utilizing this integration platform face significant risk exposure as the vulnerability allows for unauthorized data access through legitimate user accounts that possess standard authentication credentials. The security implications extend beyond simple information disclosure, as the sensitive data stored in logs may include authentication tokens, encryption keys, personal identifiable information, and other critical business data that could be exploited by malicious actors with access to the system.
The technical implementation of this vulnerability resides in the logging subsystem of IBM Sterling B2B Integrator, where sensitive data elements are written to log files without adequate protection measures. This design flaw creates an attack surface where authenticated users can potentially access log files containing confidential information through standard file system access controls or through application-level log viewing interfaces. The vulnerability aligns with CWE-200, which addresses the improper exposure of sensitive information, and represents a failure in data protection mechanisms within the software's security architecture. The logging implementation does not properly distinguish between operational data and sensitive information, resulting in the storage of potentially dangerous data elements in accessible log repositories. This weakness enables privilege escalation scenarios where legitimate users can exploit their authenticated access to retrieve confidential data that should remain protected. The vulnerability's impact is amplified by the fact that log files often contain extensive operational data that may include proprietary business information, customer data, and system credentials that are not adequately masked or encrypted within the logging framework.
The operational impact of CVE-2020-4566 extends far beyond immediate data exposure, creating cascading security risks that can compromise entire enterprise ecosystems. Organizations may experience regulatory compliance violations under standards such as gdpr, hipaa, and pci dss due to unauthorized access to sensitive information through log file enumeration. The vulnerability enables potential data breaches that could result in financial losses, reputational damage, and legal consequences. Attackers can leverage this vulnerability to gain intelligence about system configurations, user credentials, and business processes that would otherwise remain protected. The exposure of sensitive data through log files creates opportunities for advanced persistent threats where attackers can use the retrieved information to plan more sophisticated attacks against the organization's infrastructure. Additionally, the vulnerability impacts audit and compliance processes, as organizations may be unable to demonstrate proper data protection measures when log files contain unencrypted sensitive information that should have been protected according to industry security standards.
Mitigation strategies for CVE-2020-4566 require immediate implementation of log file access controls and data sanitization measures within the IBM Sterling B2B Integrator environment. Organizations should implement comprehensive log management policies that include regular review of log file contents and implementation of data masking or anonymization techniques for sensitive information. The recommended approach involves configuring the logging subsystem to exclude or encrypt sensitive data elements before writing to log files, ensuring that authentication tokens, personal information, and system credentials are not stored in plain text within accessible log repositories. Security administrators should establish strict access controls for log files, limiting access to authorized personnel only and implementing audit trails for log file access. The implementation of centralized log management solutions with proper filtering capabilities can help prevent sensitive data from being written to log files in the first place. Organizations should also consider implementing the principle of least privilege for log file access, ensuring that users can only access log files relevant to their specific operational responsibilities. Additionally, regular security assessments and vulnerability scanning should be conducted to identify any potential data exposure through logging mechanisms, with remediation efforts prioritized based on the sensitivity of information contained in system logs according to industry standards and security frameworks.