CVE-2006-5336 in Database Server
Summary
by MITRE
Multiple unspecified vulnerabilities in the Change Data Capture (CDC) component in Oracle Database 9.2.0.7, 10.1.0.5, and have unknown impact and remote authenticated attack vectors related to (1) sys.dbms_cdc_ipublish (Vuln# DB05) and (2) sys.dbms_cdc_isubscribe (DB06). NOTE: as of 20061023, Oracle has not disputed reports from reliable third parties that DB05 is for SQL injection in CREATE_CHANGE_TABLE and CHANGE_TABLE_TRIGGER, and DB06 is for PL/SQL injection in the PREPARE_UNBOUNDED_VIEW procedure.
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Analysis
by VulDB Data Team • 04/24/2026
The vulnerability identified as CVE-2006-5336 represents a critical security flaw within Oracle Database's Change Data Capture component, specifically affecting versions 9.2.0.7, 10.1.0.5, and potentially other releases in the 10g and 9i series. This vulnerability resides within the database's logical change recording mechanism that tracks and propagates data changes to downstream systems, making it particularly dangerous as it directly impacts the integrity and security of database change tracking operations. The affected components sys.dbms_cdc_ipublish and sys.dbms_cdc_isubscribe are core functions responsible for publishing and subscribing to change data streams, respectively, which form the backbone of Oracle's CDC functionality.
The technical exploitation of this vulnerability manifests through two distinct attack vectors that leverage different injection techniques to compromise database security. The first vector DB05 specifically targets SQL injection vulnerabilities within the CREATE_CHANGE_TABLE and CHANGE_TABLE_TRIGGER procedures, while the second vector DB06 exploits PL/SQL injection in the PREPARE_UNBOUNDED_VIEW procedure. These injection points allow authenticated attackers to manipulate database operations by injecting malicious code through parameter inputs that are not properly sanitized or validated. The SQL injection vulnerability in CREATE_CHANGE_TABLE enables attackers to execute arbitrary SQL commands that can modify database schema or extract sensitive information, while the PL/SQL injection in PREPARE_UNBOUNDED_VIEW allows for more complex code execution within the database's PL/SQL execution environment.
The operational impact of this vulnerability extends beyond simple data compromise, as it provides attackers with the capability to manipulate the fundamental change tracking mechanisms that many enterprise applications depend upon for data synchronization, auditing, and replication purposes. An authenticated attacker with access to database accounts can potentially gain unauthorized access to sensitive data, modify change tracking metadata, disrupt data synchronization processes, or even escalate privileges within the database environment. The remote authenticated attack vector means that attackers do not need physical access to the database server, as long as they can establish a database session with sufficient privileges to execute the vulnerable procedures. This vulnerability directly relates to CWE-89 for SQL injection and CWE-94 for PL/SQL injection, both of which are classified as high-risk vulnerabilities in the Common Weakness Enumeration catalog.
The security implications of CVE-2006-5336 align with several techniques documented in the MITRE ATT&CK framework, particularly those related to privilege escalation and data manipulation. Attackers can leverage this vulnerability to establish persistent access patterns through manipulated change tracking procedures, potentially evading detection mechanisms that monitor normal database operations. The vulnerability affects database administrators' ability to trust the integrity of change data streams, which could compromise audit trails and data lineage tracking that organizations rely upon for compliance and security monitoring. Organizations implementing Oracle Database solutions with CDC functionality face significant risk from this vulnerability, as it undermines the security assumptions of database change tracking and could enable attackers to silently modify data without detection. The complexity of database environments and the interconnected nature of change tracking systems means that exploitation of these vulnerabilities can have cascading effects throughout enterprise data infrastructure, potentially compromising multiple applications that depend on reliable change data feeds.