CVE-2020-10234 : Exploit Details and Defense Strategies

IObit Advanced SystemCare 13.2's AscRegistryFilter.sys kernel driver allows an unprivileged user to trigger a kernel panic by sending a specific IOCTL request.

Understanding CVE-2020-10234

This CVE involves a vulnerability in the AscRegistryFilter.sys kernel driver of IObit Advanced SystemCare 13.2, enabling an unprivileged user to cause a kernel panic through a specific IOCTL request.

What is CVE-2020-10234?

The AscRegistryFilter.sys kernel driver in IObit Advanced SystemCare 13.2 allows an unprivileged user to send an IOCTL to the device driver. If the user provides a NULL entry for the dwIoControlCode parameter, a kernel panic (BSOD) occurs.

The Impact of CVE-2020-10234

An unprivileged user can trigger a kernel panic (BSOD) by sending a specific IOCTL request.
Affected systems include \DosDevices\AscRegistryFilter and \Device\AscRegistryFilter.

Technical Details of CVE-2020-10234

This section provides detailed technical information about the CVE.

Vulnerability Description

The vulnerability allows an unprivileged user to induce a kernel panic by providing a NULL entry for the dwIoControlCode parameter in the IOCTL request.

Affected Systems and Versions

Product: IObit Advanced SystemCare 13.2
Vendor: IObit
Versions: Not specified

Exploitation Mechanism

The IOCTL codes triggering the vulnerability are located in the dispatch function: 0x8001E000, 0x8001E004, 0x8001E008, 0x8001E00C, 0x8001E010, 0x8001E014, 0x8001E020, 0x8001E024, 0x8001E040, 0x8001E044, and 0x8001E048.

Mitigation and Prevention

Protect your system from CVE-2020-10234 with the following steps:

Immediate Steps to Take

Avoid untrusted applications and sources.
Regularly update security patches.
Monitor vendor updates for fixes.

Long-Term Security Practices

Implement the principle of least privilege.
Conduct regular security audits.
Educate users on safe computing practices.

Patching and Updates

Apply the latest patches and updates from IObit to address the vulnerability.