CVE-2020-11520 : What You Need to Know

WinMagic SecureDoc v8.5 and earlier versions are affected by a vulnerability in the SDDisk2k.sys driver, allowing local users to write to arbitrary kernel memory addresses, leading to privileged code execution.

Understanding CVE-2020-11520

This CVE identifies a security issue in WinMagic SecureDoc v8.5 and earlier versions.

What is CVE-2020-11520?

The vulnerability in the SDDisk2k.sys driver of WinMagic SecureDoc v8.5 and earlier versions enables local users to write to arbitrary kernel memory addresses due to the lack of pointer validation in the IOCTL dispatcher. Exploiting this flaw can result in privileged code execution.

The Impact of CVE-2020-11520

The exploitation of this vulnerability can lead to unauthorized users gaining elevated privileges on the affected system, potentially compromising its security and integrity.

Technical Details of CVE-2020-11520

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability allows local users to write to arbitrary kernel memory addresses due to inadequate pointer validation in the IOCTL dispatcher of the SDDisk2k.sys driver.

Affected Systems and Versions

Product: WinMagic SecureDoc v8.5 and earlier
Vendor: WinMagic
Version: Not applicable

Exploitation Mechanism

The lack of proper pointer validation in the IOCTL dispatcher of the SDDisk2k.sys driver enables local users to manipulate kernel memory addresses, leading to unauthorized privileged code execution.

Mitigation and Prevention

Protecting systems from CVE-2020-11520 is crucial to maintaining security.

Immediate Steps to Take

Apply security patches provided by WinMagic promptly.
Restrict access to vulnerable systems to authorized personnel only.
Monitor system logs for any suspicious activities related to kernel memory writes.

Long-Term Security Practices

Regularly update and patch all software and drivers to prevent vulnerabilities.
Implement the principle of least privilege to limit user access rights.
Conduct regular security audits and penetration testing to identify and address potential weaknesses.

Patching and Updates

Ensure that WinMagic SecureDoc is updated to the latest version that includes fixes for the vulnerability.