CVE-2018-3990 : What You Need to Know

This CVE-2018-3990 article provides insights into a critical vulnerability in the WibuKey.sys Version 6.40 (Build 2400) software from WIBU-SYSTEMS, affecting kernel memory and potentially leading to privilege escalation.

Understanding CVE-2018-3990

This section delves into the details of the vulnerability and its impact.

What is CVE-2018-3990?

CVE-2018-3990 is a vulnerability found in the 0x8200E804 IOCTL handler functionality of WibuKey.sys Version 6.40 (Build 2400) software from WIBU-SYSTEMS. It can be exploited through a carefully crafted IRP request, leading to a buffer overflow that corrupts kernel memory and may result in privilege escalation.

The Impact of CVE-2018-3990

The vulnerability has a CVSS base score of 9.3, categorizing it as critical. Its high impact on confidentiality, integrity, and availability, coupled with a low attack complexity and local attack vector, makes it a severe security concern.

Technical Details of CVE-2018-3990

This section provides technical insights into the vulnerability.

Vulnerability Description

The vulnerability arises from a pool corruption issue in the 0x8200E804 IOCTL handler functionality of WibuKey.sys Version 6.40 (Build 2400). A specially crafted IRP request can trigger a buffer overflow, leading to kernel memory corruption and potential privilege escalation.

Affected Systems and Versions

Affected software: WibuKey.sys Version 6.40 (Build 2400) from WIBU-SYSTEMS
Versions: Not applicable

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Local
Privileges Required: None
User Interaction: None
Scope: Changed

Mitigation and Prevention

Learn how to mitigate and prevent the exploitation of CVE-2018-3990.

Immediate Steps to Take

Apply vendor-supplied patches promptly
Monitor security advisories for updates
Implement least privilege access

Long-Term Security Practices

Conduct regular security assessments
Employ network segmentation
Educate users on safe computing practices

Patching and Updates

Regularly update and patch affected software to prevent exploitation of the vulnerability.