CVE-2006-0269 in Database Server
Summary
by MITRE
Unspecified vulnerability in the Streams Capture component of Oracle Database server 10.1.0.5 and 10.2.0.1 has unspecified impact and attack vectors, as identified by Oracle Vuln# DB25. NOTE: details are unavailable from Oracle, but they have not publicly disputed a claim by a reliable independent researcher that states that the problem is SQL injection in the SET_DIRECTORY_ROOT function in the DBMS_CDC_PUBLISH package.
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Analysis
by VulDB Data Team • 11/23/2024
The vulnerability identified as CVE-2006-0269 represents a critical security flaw within Oracle Database server's Streams Capture component, specifically affecting versions 10.1.0.5 and 10.2.0.1. This issue was catalogued under Oracle Vulnerability Number DB25 and demonstrates the complexity of database security vulnerabilities that may not be fully disclosed by vendors. The incomplete disclosure from Oracle creates a challenging environment for security professionals attempting to assess and remediate the threat, as the full scope of the vulnerability remains partially obscured. Independent researchers have provided crucial information suggesting that the vulnerability manifests as SQL injection within the SET_DIRECTORY_ROOT function of the DBMS_CDC_PUBLISH package, indicating a potential path for malicious exploitation that could compromise database integrity and confidentiality.
The technical flaw within the DBMS_CDC_PUBLISH package's SET_DIRECTORY_ROOT function presents a classic SQL injection vulnerability that allows attackers to manipulate database queries through crafted input parameters. This type of vulnerability falls under the Common Weakness Enumeration category CWE-89, which specifically addresses SQL injection flaws where untrusted data is incorporated into SQL commands without proper sanitization or parameterization. The Streams Capture component in Oracle Database is designed to capture database changes and make them available for replication or other processing tasks, making this vulnerability particularly dangerous as it could potentially allow unauthorized access to change data capture mechanisms. The SET_DIRECTORY_ROOT function likely handles directory path specifications for capture operations, and if input validation is insufficient, malicious users could inject SQL commands that execute with the privileges of the database user account.
The operational impact of this vulnerability extends beyond simple data compromise, as it could enable attackers to manipulate the database's change data capture processes and potentially gain unauthorized access to sensitive information flows. Attackers exploiting this vulnerability might be able to redirect capture operations to unauthorized directories, modify capture parameters, or even execute arbitrary SQL commands against the database system. This type of vulnerability aligns with the MITRE ATT&CK framework's technique T1078, which covers Valid Accounts and T1046, which addresses Network Service Scanning, as exploitation would likely involve both legitimate account access and network-based attack vectors. The Streams Capture functionality is often used for database replication, audit trails, and change management processes, making this vulnerability particularly concerning for organizations that rely on these mechanisms for compliance and operational integrity.
Security mitigation strategies for CVE-2006-0269 should focus on immediate patching of affected Oracle Database versions, though the lack of complete vendor disclosure complicates the assessment of risk levels. Organizations should implement network segmentation to limit access to database servers and employ strict input validation measures for all database functions that handle user-supplied data. The principle of least privilege should be enforced by ensuring that database accounts used by the Streams Capture component have minimal necessary permissions and that the DBMS_CDC_PUBLISH package is properly restricted from unauthorized access. Additionally, organizations should consider implementing database activity monitoring and intrusion detection systems to identify potential exploitation attempts. Given the nature of SQL injection vulnerabilities, input sanitization and parameterized queries should be implemented as defensive measures, though the primary recommendation remains applying Oracle's security patches as soon as they become available to address the underlying vulnerability in the Streams Capture component.