CVE-2019-1010066 Explained : Impact and Mitigation

Lawrence Livermore National Laboratory's msr-safe software version v1.1.0 has an Incorrect Access Control vulnerability that allows attackers to alter model specific registers through the ioctl handling. The vulnerability has been fixed in version v1.2.0.

Understanding CVE-2019-1010066

This CVE involves an access control issue in the msr-safe software by Lawrence Livermore National Laboratory.

What is CVE-2019-1010066?

The vulnerability in version v1.1.0 of msr-safe software allows unauthorized modification of model specific registers by exploiting a bug in the ioctl interface whitelist checking.

The Impact of CVE-2019-1010066

Attackers can alter model specific registers, typically restricted to root users.
The vulnerability affects the ioctl handling component of the software.

Technical Details of CVE-2019-1010066

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability is related to Incorrect Access Control, enabling attackers to write to model specific registers.

Affected Systems and Versions

Product: msr-safe
Vendor: Lawrence Livermore National Laboratory
Affected Version: v1.1.0
Fixed Version: v1.2.0

Exploitation Mechanism

Attackers exploit a bug in the ioctl interface whitelist checking to gain unauthorized write access to model specific registers.

Mitigation and Prevention

Protect your systems from CVE-2019-1010066 with the following measures:

Immediate Steps to Take

Update msr-safe software to version v1.2.0 to eliminate the vulnerability.
Restrict access to sensitive system resources.

Long-Term Security Practices

Regularly monitor and audit access control mechanisms.
Implement the principle of least privilege to limit user access.

Patching and Updates

Stay informed about security updates and apply patches promptly to prevent exploitation of known vulnerabilities.