CVE-2009-0997 in Database Server
Summary
by MITRE
Unspecified vulnerability in the Database Vault component in Oracle Database 11.1.0.6 allows remote authenticated users to affect confidentiality, related to DBMS_SYS_SQL.
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Analysis
by VulDB Data Team • 08/09/2021
The vulnerability identified as CVE-2009-0997 resides within Oracle Database's Database Vault component version 11.1.0.6, representing a significant security weakness that impacts database confidentiality. This flaw specifically relates to the DBMS_SYS_SQL package, which serves as a system-level SQL execution interface within Oracle Database environments. The vulnerability's classification as unspecified indicates that the exact technical mechanism remains undisclosed, though its implications for data security are severe enough to warrant immediate attention from database administrators and security professionals. Database Vault, designed to provide advanced data protection and security controls, becomes compromised through this weakness, undermining the very security measures it was intended to enforce. The vulnerability affects authenticated users who can leverage their database access privileges to exploit this flaw, making it particularly dangerous in environments where multiple users maintain valid database credentials.
The technical exploitation of this vulnerability occurs through the DBMS_SYS_SQL package, which provides a mechanism for executing dynamic SQL statements with elevated privileges. This package typically operates within the database's system context, allowing for powerful administrative operations that should normally be restricted to privileged users only. When an authenticated user can manipulate this interface, they potentially gain unauthorized access to sensitive data that should remain protected by Database Vault policies. The flaw likely involves improper privilege validation or insufficient access controls within the DBMS_SYS_SQL implementation, allowing authenticated users to execute SQL statements that would normally require higher-level privileges. This represents a privilege escalation vulnerability where standard database users can potentially access restricted database objects or execute unauthorized operations that compromise data confidentiality. The vulnerability's remote nature indicates that attackers can exploit this weakness from external network positions, eliminating the need for local system access.
The operational impact of CVE-2009-0997 extends far beyond simple data exposure, as it fundamentally undermines the integrity of Oracle Database Vault's security model. Organizations relying on Database Vault for protecting sensitive information face potential data breaches that could compromise financial records, personal information, intellectual property, and other confidential data assets. The vulnerability's presence allows attackers to bypass security controls that should protect against unauthorized access to database resources, potentially leading to complete data compromise within affected database instances. Security monitoring systems may not detect this exploitation as it occurs within legitimate database operations, making detection particularly challenging. The vulnerability affects database administrators' ability to enforce security policies and can result in compliance violations under various regulatory frameworks such as pci dss, hipaa, and gdpr. Organizations may experience significant operational disruption during incident response and remediation activities, including potential database downtime, forensic analysis, and security policy reevaluation.
Mitigation strategies for CVE-2009-0997 require immediate implementation of Oracle's security patches and updates, as the vulnerability represents a critical security weakness in the database environment. Database administrators should implement the latest Oracle Database patches and security updates that address the specific flaw in the DBMS_SYS_SQL package within Database Vault. Access controls should be reviewed and strengthened to minimize the number of authenticated users with elevated privileges, implementing the principle of least privilege to reduce potential exploitation surfaces. Network segmentation and firewall rules should be enforced to limit access to database systems, particularly restricting direct database access from untrusted networks. Monitoring and logging should be enhanced to detect unusual SQL execution patterns or privilege escalation attempts through the DBMS_SYS_SQL interface. Security professionals should conduct comprehensive vulnerability assessments to identify all instances of affected Oracle Database versions and ensure proper patch management procedures are in place. Additionally, organizations should consider implementing database activity monitoring solutions that can detect anomalous behavior patterns consistent with exploitation attempts of this type of vulnerability. The remediation process should include thorough testing of patches in non-production environments before deployment to ensure compatibility with existing database applications and workflows.