CVE-2011-0838 in Database Server
Summary
by MITRE
Unspecified vulnerability in the Core RDBMS component in Oracle Database Server 11.1.0.7, 11.2.0.1, and 11.2.0.2 allows remote authenticated users to affect confidentiality, integrity, and availability via unknown vectors related to create procedure privileges.
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Analysis
by VulDB Data Team • 11/14/2021
The vulnerability identified as CVE-2011-0838 resides within Oracle Database Server's Core RDBMS component and affects versions 11.1.0.7, 11.2.0.1, and 11.2.0.2. This unspecified flaw represents a significant security weakness that enables remote authenticated attackers to compromise the fundamental security properties of the database system. The vulnerability specifically relates to create procedure privileges, indicating that attackers with legitimate database access can exploit this weakness to undermine database confidentiality, integrity, and availability simultaneously.
The technical nature of this vulnerability stems from insufficient access controls or privilege validation mechanisms within the database server's procedure creation functionality. When authenticated users possess create procedure privileges, they can potentially leverage these rights to execute malicious code or manipulate database objects in ways that were not intended by the system design. This weakness allows attackers to manipulate database operations through procedure creation, potentially leading to unauthorized data access, data corruption, or service disruption. The unspecified nature of the vector suggests that the attack could manifest through multiple pathways within the procedure creation process, making the vulnerability particularly dangerous as it may be exploitable through various attack surfaces.
From an operational impact perspective, this vulnerability presents a severe risk to database security posture since it allows authenticated users to compromise all three core security principles. Confidentiality can be affected when attackers create procedures that extract sensitive data from the database or bypass access controls. Integrity suffers when malicious procedures modify or corrupt database content, and availability can be compromised through procedures that consume excessive resources or disable critical database functions. The remote aspect of the attack means that even users with legitimate access rights can be exploited to carry out attacks from external locations, expanding the attack surface beyond traditional network boundaries.
The vulnerability aligns with CWE-264, which covers permissions, privileges, and access control issues, and demonstrates how insufficient privilege validation can lead to severe security consequences. From an ATT&CK framework perspective, this weakness maps to privilege escalation and defense evasion techniques, as attackers can use legitimate procedures to gain elevated access or hide malicious activities within normal database operations. Organizations should implement immediate mitigations including applying Oracle's security patches, reviewing and restricting create procedure privileges for database users, and monitoring database procedures for suspicious activity. Additionally, network segmentation and access control measures should be strengthened to limit the potential impact of compromised authenticated accounts. The vulnerability underscores the critical importance of proper privilege management and regular security updates in database environments.