CVE-2025-15037: ASUS Business Privilege Escalation Flaw

CVE-2025-15037 Overview

An Incorrect Permission Assignment vulnerability exists in the ASUS Business System Control Interface driver. This vulnerability can be triggered by an unprivileged local user sending a specially crafted IOCTL request, potentially leading to unauthorized access to sensitive hardware resources and kernel information disclosure. The flaw resides in improper access control mechanisms within the driver, allowing low-privileged users to interact with kernel-level components that should be restricted.

Critical Impact

Local attackers can exploit this driver vulnerability to gain unauthorized access to sensitive hardware resources and extract kernel memory information, potentially exposing critical system data and enabling further privilege escalation attacks.

Affected Products

• ASUS Business System Control Interface Driver
• ASUS Commercial Desktop/Laptop Systems with Business System Control Interface
• Systems running affected ASUS driver versions

Discovery Timeline

• 2026-03-12 - CVE-2025-15037 published to NVD
• 2026-03-12 - Last updated in NVD database

Technical Details for CVE-2025-15037

Vulnerability Analysis

This vulnerability is classified under CWE-732 (Incorrect Permission Assignment for Critical Resource), indicating that the ASUS Business System Control Interface driver fails to properly restrict access to sensitive IOCTL handlers. The driver exposes interfaces that should require elevated privileges but instead allow unprivileged local users to invoke them.

The attack requires local access to the system where the vulnerable driver is installed. An attacker with low-level user privileges can craft malicious IOCTL requests to interact directly with hardware resources that the driver manages. This improper permission model creates a significant attack surface for information disclosure and potential system compromise.

The vulnerability enables attackers to read kernel memory contents, potentially exposing sensitive information such as memory addresses (useful for bypassing ASLR), cryptographic keys, authentication tokens, or other protected data structures. This information disclosure can serve as a stepping stone for more sophisticated attacks.

Root Cause

The root cause of this vulnerability lies in the improper access control implementation within the ASUS Business System Control Interface driver's IOCTL handler routines. The driver fails to validate the privilege level of the calling process before processing sensitive requests. Specifically, the driver does not implement adequate permission checks when handling IOCTL codes that interact with hardware resources or expose kernel information.

Windows drivers are expected to enforce proper access control by checking caller tokens and ensuring only appropriately privileged processes can invoke sensitive functionality. The absence of these checks in this driver allows any local user to send IOCTL requests that should be restricted to administrators or system-level processes.

Attack Vector

The attack vector is local, requiring the attacker to have the ability to execute code on the target system. The exploitation process involves:

1. An unprivileged local user opens a handle to the vulnerable ASUS driver device
2. The attacker crafts a specially formatted IOCTL request targeting sensitive driver functionality
3. The driver processes the request without proper permission validation
4. Sensitive hardware resources are accessed or kernel information is returned to the attacker
5. The disclosed information can be used for further attacks, such as privilege escalation or bypassing security mechanisms

The vulnerability can be exploited by sending malformed or specially crafted IOCTL requests through the DeviceIoControl API to the driver's device object. Since no verified exploit code is available, security researchers should refer to the ASUS Security Advisory for detailed technical information about the affected IOCTL codes and exploitation mechanics.

Detection Methods for CVE-2025-15037

Indicators of Compromise

• Unusual IOCTL traffic to the ASUS Business System Control Interface driver from non-administrative processes
• Unexpected access attempts to \\.\AsusBusinessSystemCtrl or similar ASUS driver device paths
• Low-privileged processes attempting to open handles to ASUS system drivers
• Memory access patterns indicating kernel information disclosure attempts

Detection Strategies

• Monitor for DeviceIoControl API calls targeting ASUS driver devices from unprivileged user contexts
• Implement driver integrity monitoring to detect unauthorized modifications to ASUS system drivers
• Deploy endpoint detection rules to flag suspicious IOCTL code patterns associated with this vulnerability
• Enable Windows Event Tracing for kernel driver interactions to capture exploitation attempts

Monitoring Recommendations

• Configure SentinelOne Singularity platform to monitor driver-level interactions and IOCTL request patterns
• Enable enhanced logging for Windows kernel driver activity on systems with ASUS Business System Control Interface installed
• Establish baseline behavior for legitimate driver communications to identify anomalous access patterns
• Implement real-time alerting for processes exhibiting information disclosure attack behaviors

How to Mitigate CVE-2025-15037

Immediate Actions Required

• Check for driver updates from ASUS by visiting the ASUS Security Advisory page
• Restrict local access to systems running the vulnerable driver to trusted users only
• Implement application whitelisting to prevent unauthorized executables from interacting with system drivers
• Consider temporarily disabling the ASUS Business System Control Interface driver if not critical to operations

Patch Information

ASUS has acknowledged this vulnerability in their security advisory. Affected users should refer to the ASUS Security Advisory for the "ASUS Business System Control Interface" section to obtain the latest patched driver version. Organizations should prioritize driver updates on business systems where this vulnerability poses the greatest risk due to multi-user environments.

Workarounds

• Limit local user access to affected systems until patches are applied
• Implement least privilege principles to minimize the number of users who could potentially exploit this vulnerability
• Use Group Policy to restrict driver installation and modification privileges
• Deploy network segmentation to isolate systems with the vulnerable driver from sensitive resources

# Check for ASUS Business System Control Interface driver installation
# PowerShell command to identify vulnerable driver
Get-WmiObject Win32_PnPSignedDriver | Where-Object {$_.DeviceName -like "*ASUS*Business*"} | Select-Object DeviceName, DriverVersion, IsSigned

# Disable the driver temporarily if not required (requires Administrator privileges)
# sc config "AsusBusinessSystemCtrlSvc" start= disabled