CVE-2024-12654 in USB over Network
Summary
by MITRE • 12/16/2024
A vulnerability classified as problematic was found in FabulaTech USB over Network 6.0.6.1. Affected by this vulnerability is the function 0x220408 in the library ftusbbus2.sys of the component IOCT Handler. The manipulation leads to null pointer dereference. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 12/18/2024
This vulnerability resides within the FabulaTech USB over Network software version 6.0.6.1, specifically targeting the ftusbbus2.sys kernel driver component. The issue manifests in the IOCT Handler function identified as 0x220408, where a null pointer dereference condition occurs during specific device control operations. The vulnerability represents a classic kernel-level memory management flaw that can lead to system instability and potential privilege escalation. According to CWE-476, this vulnerability maps directly to null pointer dereference, a well-documented weakness that occurs when a program attempts to access a memory location through a pointer that has not been properly initialized or has been set to NULL. The attack vector requires local system access, meaning an attacker must already have user-level privileges on the target system to exploit this vulnerability. This local privilege requirement significantly limits the scope of potential exploitation but does not eliminate the risk entirely, as attackers who have already compromised a system can leverage this vulnerability to escalate their privileges or cause system crashes.
The operational impact of this vulnerability extends beyond simple system instability, as null pointer dereferences in kernel drivers can lead to system crashes, blue screen errors, or more severe security implications depending on how the vulnerability is exploited. The fact that this vulnerability has been publicly disclosed and is known to be exploitable increases the risk profile significantly, as threat actors can readily develop and deploy malicious payloads targeting this specific flaw. The lack of vendor response to early disclosure attempts is particularly concerning, as it suggests either a lack of awareness of the severity or inadequate patch development processes within the vendor organization. This absence of vendor remediation creates a window of opportunity for attackers to develop and deploy exploits without fear of immediate vendor patches, potentially leading to widespread compromise of systems running the affected software.
Mitigation strategies should focus on immediate access control measures and system hardening approaches to prevent unauthorized local access to affected systems. Organizations should implement strict user access controls and ensure that only authorized personnel have local system access to prevent exploitation of this local privilege escalation vector. The most effective immediate mitigation involves upgrading to the latest version of FabulaTech USB over Network software where the vulnerability has been patched, though this may not be immediately available given the vendor's lack of response. System administrators should also consider implementing monitoring solutions that can detect unusual kernel-level activity or device control operations that might indicate exploitation attempts. From an ATT&CK framework perspective, this vulnerability aligns with techniques involving privilege escalation and kernel exploitation, specifically mapping to T1068 (Local Privilege Escalation) and T1547.001 (Registry Run Keys / Startup Folder). Additionally, the vulnerability could potentially be leveraged in conjunction with other attack techniques to establish persistence or move laterally within compromised networks, making it a critical vulnerability to address promptly through both immediate access controls and eventual patch management processes.