CVE-2016-5572 in Database Server
Summary
by MITRE
Unspecified vulnerability in the Kernel PDB component in Oracle Database Server 12.1.0.2 allows local users to affect confidentiality, integrity, and availability via unknown vectors.
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Analysis
by VulDB Data Team • 09/26/2022
The vulnerability identified as CVE-2016-5572 resides within the Kernel PDB component of Oracle Database Server version 12.1.0.2, representing a significant security weakness that affects the foundational kernel operations of the database system. This unspecified flaw operates at the kernel level, where it can be exploited by local users to compromise the fundamental security properties of the system. The kernel serves as the core component responsible for managing system resources and providing essential services, making any vulnerability within this realm particularly dangerous as it can undermine the entire database infrastructure.
The technical nature of this vulnerability stems from the Kernel PDB component's handling of certain internal processes and data structures that govern database operations. Local users can exploit this weakness through unspecified vectors that likely involve manipulating kernel-level data flows or memory management operations. The lack of specific details about the exact exploitation mechanism in the CVE description suggests that this vulnerability may involve complex interactions between multiple kernel subsystems or could be related to improper access controls within the kernel's privilege management framework. The vulnerability's classification as affecting confidentiality, integrity, and availability indicates that it provides attackers with comprehensive control over database operations, potentially allowing them to read sensitive data, modify database contents, or disrupt service availability through various attack vectors.
The operational impact of CVE-2016-5572 extends far beyond typical database security concerns, as it represents a critical weakness that local attackers can leverage to gain extensive privileges within the database environment. This vulnerability directly violates the principle of least privilege by allowing local users to potentially escalate their access levels and compromise the entire database system. The confidentiality aspect means that attackers can access sensitive data that should remain protected, while the integrity compromise allows for data manipulation and potential corruption of critical database information. The availability impact could manifest through denial-of-service conditions or system crashes that disrupt database operations. Organizations running Oracle Database Server 12.1.0.2 are particularly vulnerable since this version contains the flaw, and the local user access requirement reduces the attack surface complexity while still maintaining significant risk potential.
Security professionals should note that this vulnerability aligns with CWE-284, which addresses improper access control issues in software systems. The flaw demonstrates poor privilege management within the kernel component, where local users can exploit insufficient access controls to compromise system security. Additionally, the vulnerability's nature suggests potential ATT&CK framework mappings to techniques such as privilege escalation and defense evasion, as attackers could leverage this weakness to maintain persistent access and avoid detection mechanisms. Organizations should prioritize patch management for this vulnerability, as Oracle would have released specific security patches to address the kernel-level flaw. The local user requirement means that internal threat actors or compromised accounts pose the greatest risk, making comprehensive access controls and monitoring essential for detecting potential exploitation attempts.
The broader implications of this vulnerability highlight the critical importance of kernel-level security in enterprise database systems, where a single flaw can provide attackers with complete system compromise. Database administrators should implement comprehensive monitoring solutions to detect unusual kernel-level activities and maintain strict access controls to minimize the risk of local privilege escalation. Regular security assessments and vulnerability scanning should include checks for kernel-level weaknesses, particularly in database server environments where the attack surface is expanded by the presence of local users with legitimate access rights. The vulnerability also underscores the necessity of maintaining current security patches and implementing proper security configuration management practices to prevent exploitation of known weaknesses in database kernel components.