CVE-2023-28575 in AQT1000
Summary
by MITRE • 08/08/2023
The cam_get_device_priv function does not check the type of handle being returned (device/session/link). This would lead to invalid type usage if a wrong handle is passed to it.
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Analysis
by VulDB Data Team • 09/01/2023
The vulnerability identified as CVE-2023-28575 resides within the cam_get_device_priv function, which operates within storage subsystems that manage device access through various handle types including devices sessions and links. This flaw represents a critical type confusion issue that violates fundamental security principles of handle validation and resource management. The function fails to perform essential type verification before processing returned handles, creating a scenario where improper handle types can be inadvertently processed as if they were of a different category.
This vulnerability falls under the broader category of CWE-1287 which specifically addresses type confusion errors in software implementations. The technical flaw manifests when the cam_get_device_priv function accepts a handle without validating its type, allowing an attacker to potentially pass an invalid handle type such as a session handle where a device handle is expected. This type confusion creates opportunities for memory corruption and arbitrary code execution within the storage subsystem. The function's lack of proper type checking creates a pathway for attackers to manipulate the execution flow by supplying handles of incorrect types, leading to unpredictable behavior and potential privilege escalation.
The operational impact of this vulnerability extends beyond simple functionality degradation to encompass serious security implications for storage management systems. When an attacker can successfully exploit this flaw, they may gain unauthorized access to storage resources or manipulate device operations in ways that compromise system integrity. The vulnerability particularly affects systems that rely heavily on CAM (Common Access Method) interfaces for storage device management, which are prevalent in enterprise storage environments, server systems, and operating systems that utilize CAM-based storage architectures. The attack surface is broad as any application or service that utilizes the cam_get_device_priv function for device privilege management becomes potentially vulnerable to exploitation.
Mitigation strategies for CVE-2023-28575 should focus on implementing robust handle type validation mechanisms within the cam_get_device_priv function and surrounding code. The most effective approach involves adding explicit type checking logic that verifies handle types before processing operations, ensuring that device handles are only processed when they are indeed device handles. Security patches should enforce strict type validation through runtime checks that cross-reference handle metadata against expected types. Organizations should also implement monitoring systems that can detect anomalous handle usage patterns and consider applying the principle of least privilege to limit the impact of potential exploitation. The remediation aligns with ATT&CK technique T1068 which addresses privilege escalation through system binary manipulation and should be addressed as part of comprehensive vulnerability management programs. Additionally, developers should follow secure coding practices that emphasize input validation and type safety to prevent similar issues in future implementations.