CVE-2023-2007 in Linux
Summary
by MITRE • 04/25/2023
The specific flaw exists within the DPT I2O Controller driver. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the kernel.
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Analysis
by VulDB Data Team • 04/30/2023
The vulnerability identified as CVE-2023-2007 resides within the DPT I2O Controller driver, a critical component responsible for managing storage controller operations in enterprise computing environments. This driver operates at the kernel level, making it a prime target for sophisticated attackers seeking to gain elevated system privileges. The flaw manifests as insufficient synchronization mechanisms during object operations, creating a race condition scenario that can be exploited by malicious actors to compromise system integrity. The DPT I2O Controller driver is commonly found in server environments where high-performance storage management is required, particularly in data center and enterprise storage arrays where multiple concurrent operations may occur simultaneously.
The technical root cause of this vulnerability stems from inadequate locking mechanisms within the driver's object management code structure. When multiple threads or processes attempt to access shared resources simultaneously, the absence of proper mutex or spinlock implementations creates opportunities for concurrent access violations. This weakness allows an attacker to manipulate the timing of operations and potentially trigger memory corruption or privilege escalation conditions. The vulnerability falls under the CWE-362 category of "Concurrent Execution using Shared Resource with Improper Synchronization" and aligns with ATT&CK technique T1068 which describes "Exploitation for Privilege Escalation." The lack of proper synchronization primitives means that operations on kernel objects can be interrupted or modified by concurrent threads, leading to unpredictable behavior and potential code execution opportunities.
The operational impact of this vulnerability extends beyond simple privilege escalation to encompass complete system compromise when combined with other exploitation vectors. An attacker who successfully exploits this weakness can execute arbitrary code within the kernel context, effectively bypassing all user-mode security controls and gaining unrestricted access to system resources. This includes the ability to read or modify sensitive data, install persistent backdoors, and manipulate system processes without detection. The vulnerability is particularly dangerous in enterprise environments where the DPT I2O Controller driver is commonly deployed for high-performance storage solutions, as it can affect mission-critical systems and potentially lead to data breaches or service disruptions. The attack surface is further expanded when this vulnerability is combined with other exploits that may already have established footholds within the system, creating a multi-stage attack pathway that can result in complete system takeover.
Mitigation strategies for CVE-2023-2007 should focus on immediate patch deployment from the vendor, as the most effective solution requires addressing the underlying synchronization issues in the driver code. Organizations should implement comprehensive monitoring for suspicious kernel-level activities and ensure that all systems running this driver are updated with the latest security patches. Network segmentation and access controls should be reinforced to limit potential attack vectors, while security teams should conduct thorough vulnerability assessments to identify systems that may be running outdated versions of the driver. Additionally, implementing kernel-mode exploit protection mechanisms and maintaining detailed system logs can aid in early detection of exploitation attempts. The vulnerability demonstrates the critical importance of proper synchronization in kernel drivers and highlights the need for comprehensive security testing of low-level system components that operate with elevated privileges.