CVE-2016-8940 in Tivoli Storage Manager
Summary
by MITRE
IBM Tivoli Storage Manager (IBM Spectrum Protect) 6.1, 6.2, 6.3, and 7.1 does not perform sufficient authority checking on SQL queries. As a result, an attacker is able to submit SQL queries that access database tables that are not intended for access or use by administrators. The access of these product specific database tables may allow access to passwords or other sensitive information for the product. IBM Reference #: 1998946.
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Analysis
by VulDB Data Team • 09/04/2020
IBM Tivoli Storage Manager version 6.1, 6.2, 6.3, and 7.1 contains a critical authorization flaw that stems from insufficient SQL query validation mechanisms. This vulnerability represents a classic case of inadequate access control enforcement where the system fails to properly validate user privileges before executing database operations. The flaw allows authenticated users to craft and submit SQL queries that can access database tables typically restricted to authorized administrators only. This misconfiguration creates a path for privilege escalation attacks where unauthorized individuals can bypass normal access controls and gain visibility into sensitive database structures. The vulnerability aligns with CWE-284, which specifically addresses inadequate access control mechanisms, and demonstrates how insufficient input validation can lead to unauthorized data access. The affected IBM Spectrum Protect product operates as a comprehensive storage management solution that handles critical enterprise data, making this vulnerability particularly dangerous when considering the potential exposure of authentication credentials and sensitive operational information.
The technical implementation of this vulnerability occurs through the application's SQL query processing subsystem where user-provided SQL commands are executed without proper authorization verification. Attackers can exploit this weakness by submitting crafted SQL statements that directly query database tables containing administrative credentials, configuration settings, or other sensitive data structures. The flaw essentially allows for direct database access bypassing the normal security boundaries that should protect privileged information. This type of vulnerability enables what security professionals refer to as "data exposure" through unauthorized database queries, where the attacker can extract information that would normally be restricted. The vulnerability exists at the application layer and can be classified under ATT&CK technique T1078 which covers valid accounts and privilege escalation through unauthorized access to database resources. The impact is particularly severe because IBM Spectrum Protect systems often contain enterprise-level storage management data that includes backup configurations, user credentials, and system access controls that could be leveraged for further attacks.
The operational impact of this vulnerability extends beyond simple information disclosure to potentially enable complete system compromise. An attacker who successfully exploits this weakness can access password hashes, administrative credentials, and other sensitive information that could be used for lateral movement within the enterprise network. The vulnerability creates a persistent threat vector where unauthorized access to the database can occur without detection, as the system's normal audit trails may not properly log unauthorized query execution attempts. This flaw can result in significant data breaches and compliance violations, particularly in regulated environments where storage management systems contain sensitive corporate or customer data. Organizations using affected IBM Tivoli Storage Manager versions face increased risk of insider threats and external attacks, as the vulnerability provides a mechanism for unauthorized users to access critical system information that could be used for privilege escalation or system compromise. The exposure of database table contents through this vulnerability can provide attackers with detailed information about system architecture and operational procedures, enabling more sophisticated attack vectors and potentially leading to complete system takeover.
Organizations should immediately implement comprehensive mitigation strategies to address this vulnerability in their IBM Spectrum Protect environments. The primary remediation involves applying the official IBM security patches and updates that address the insufficient authority checking mechanisms in the SQL query processing components. System administrators must also review and tighten database access controls, implementing proper role-based access controls and ensuring that only authorized personnel can execute database queries against sensitive tables. Network segmentation and monitoring should be enhanced to detect unauthorized database access attempts and SQL injection patterns that could indicate exploitation attempts. Security teams should conduct thorough audits of database permissions and access logs to identify any potential exploitation that may have already occurred. Additionally, implementing database activity monitoring solutions can provide visibility into unauthorized access patterns and help detect exploitation attempts before they result in data compromise. The vulnerability highlights the critical importance of proper input validation and access control enforcement in database applications, and organizations should review their security configurations to ensure similar weaknesses do not exist in other database-accessing applications. Regular security assessments and penetration testing should be conducted to identify and remediate similar authorization flaws in the broader enterprise infrastructure.