CVE-2017-6076 Explained : Impact and Mitigation

This CVE-2017-6076 article provides insights into a vulnerability in wolfSSL versions prior to 3.10.2 that allows malicious users to extract RSA key data.

Understanding CVE-2017-6076

This CVE-2017-6076 vulnerability impacts wolfSSL versions before 3.10.2, enabling unauthorized access to RSA key data.

What is CVE-2017-6076?

The function fp_mul_comba in wolfSSL versions before 3.10.2 allows malicious users with cache access to easily retrieve RSA key data.

The Impact of CVE-2017-6076

The vulnerability in wolfSSL versions prior to 3.10.2 poses a security risk by exposing RSA key information to unauthorized users.

Technical Details of CVE-2017-6076

This section delves into the technical aspects of the CVE-2017-6076 vulnerability.

Vulnerability Description

The function fp_mul_comba in wolfSSL versions before 3.10.2 facilitates the extraction of RSA key data by users with cache access.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: All versions before 3.10.2

Exploitation Mechanism

Malicious users with cache access on a machine can exploit the fp_mul_comba function to retrieve RSA key data.

Mitigation and Prevention

Protecting systems from CVE-2017-6076 requires immediate actions and long-term security practices.

Immediate Steps to Take

Upgrade wolfSSL to version 3.10.2 or later to mitigate the vulnerability.
Implement access controls to restrict cache access for unauthorized users.

Long-Term Security Practices

Regularly monitor and audit cache access permissions.
Educate users on secure coding practices to prevent similar vulnerabilities.

Patching and Updates

Ensure timely patching and updates for wolfSSL to address security vulnerabilities.