CVE-2020-8340 : What You Need to Know

A cross-site scripting (XSS) vulnerability in IBM and Lenovo System x IMM2 firmware versions prior to 5.60 allows for JavaScript execution through crafted URLs.

Understanding CVE-2020-8340

This CVE involves a security vulnerability in the System x IMM2 firmware.

What is CVE-2020-8340?

CVE-2020-8340 is a cross-site scripting (XSS) vulnerability found in the IBM and Lenovo System x IMM2 firmware versions before 5.60.

The Impact of CVE-2020-8340

The vulnerability could enable the execution of JavaScript code in a user's web browser through a malicious URL, potentially leading to unauthorized access.

Technical Details of CVE-2020-8340

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The XSS flaw in the System x IMM2 firmware allows attackers to execute JavaScript in a user's browser via a specially crafted URL.

Affected Systems and Versions

Lenovo System x IMM2 firmware versions less than 5.60 and 5.61 for specific machine types are impacted.

Exploitation Mechanism

Successful exploitation requires the user to visit a malicious URL, potentially through phishing, and have specific network knowledge included in the URL.

Mitigation and Prevention

Protecting systems from CVE-2020-8340 involves taking immediate and long-term security measures.

Immediate Steps to Take

Upgrade to IMM2 firmware version 5.60 or newer for affected System x products.
Upgrade to IMM2 firmware version 5.61 or newer for specific System x products.

Long-Term Security Practices

Educate users on phishing awareness and safe browsing practices.
Regularly update firmware and security patches.

Patching and Updates

Ensure all affected systems are promptly updated to the latest IMM2 firmware version to mitigate the XSS vulnerability.