CVE-2006-1871 in Database Server
Summary
by MITRE
SQL injection vulnerability in Oracle Database Server 9.2.0.7 and 10.1.0.5 allows remote attackers to execute arbitrary SQL commands via the DELETE_FROM_TABLE function in the DBMS_LOGMNR_SESSION (Log Miner) package, aka Vuln# DB06.
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Analysis
by VulDB Data Team • 07/08/2021
The vulnerability identified as CVE-2006-1871 represents a critical SQL injection flaw within Oracle Database Server versions 9.2.0.7 and 10.1.0.5. This security weakness resides within the DBMS_LOGMNR_SESSION package, specifically in the DELETE_FROM_TABLE function, which exposes the database to remote exploitation. The vulnerability operates under CWE-89, which categorizes SQL injection as a fundamental flaw in database application security where untrusted data is directly incorporated into SQL command construction without proper sanitization or parameterization. The Log Miner functionality is designed for database recovery and analysis, making this attack vector particularly dangerous as it targets administrative database components rather than standard application interfaces.
The technical exploitation of this vulnerability occurs when remote attackers can manipulate the DELETE_FROM_TABLE function within the DBMS_LOGMNR_SESSION package to inject malicious SQL commands. This function accepts user-supplied parameters that are not properly validated or escaped before being incorporated into database queries, creating an avenue for attackers to bypass authentication mechanisms and execute arbitrary database commands with the privileges of the database user. The attack vector is classified as remote, meaning that an attacker does not require physical access to the database server but can exploit the vulnerability over a network connection. This type of vulnerability aligns with ATT&CK technique T1071.005 for application layer protocol usage and T1046 for network service scanning to identify vulnerable database instances.
The operational impact of this vulnerability extends beyond simple data theft or modification, as it enables attackers to potentially gain complete control over the affected database system. Successful exploitation could result in unauthorized data access, data corruption, privilege escalation, and even complete database compromise. The Log Miner package typically requires elevated privileges to function, but this vulnerability allows attackers to bypass normal access controls and execute commands that would normally require administrative permissions. Organizations running these specific Oracle Database versions face significant risk, as the vulnerability affects core database functionality and can be leveraged for advanced persistent threats. The attack surface is particularly concerning given that Log Miner is often enabled in production environments for database recovery and auditing purposes, making the vulnerability accessible to attackers who can establish database connections.
Mitigation strategies for CVE-2006-1871 should prioritize immediate patch application from Oracle, as the vendor released security updates specifically addressing this vulnerability. Organizations should implement network segmentation to limit access to database servers and restrict database connections to trusted IP addresses. Database administrators should enforce the principle of least privilege by ensuring that database users have only the minimum required permissions to perform their functions. Input validation and parameterized queries should be implemented throughout database applications to prevent similar vulnerabilities from occurring in custom code. Additionally, organizations should conduct regular security assessments of their database environments, monitor database logs for suspicious activity, and implement database activity monitoring solutions to detect potential exploitation attempts. The vulnerability demonstrates the importance of secure coding practices in database packages and the necessity of thorough security testing for administrative database functions.