CVE-2021-35240 : What You Need to Know

A detailed overview of CVE-2021-35240 focusing on the impacts, technical details, mitigation, and prevention strategies.

Understanding CVE-2021-35240

This section covers the key aspects of the CVE, including the vulnerability description, impacted systems, and exploitation mechanism.

What is CVE-2021-35240?

CVE-2021-35240 involves a security researcher storing XSS via a Help Server setting, impacting customers using Internet Explorer due to the lack of support for 'rel=noopener'.

The Impact of CVE-2021-35240

The vulnerability has a CVSS base score of 6.5, indicating a medium severity risk. It affects SolarWinds' Orion Platform versions prior to 2020.2.6 HF1 on Windows.

Technical Details of CVE-2021-35240

This section delves into the specifics of the vulnerability, including its description, affected systems, and the exploitation process.

Vulnerability Description

The vulnerability involves a stored XSS issue through a Help Server setting, posing a risk to user confidentiality.

Affected Systems and Versions

SolarWinds' Orion Platform versions up to 2020.2.6 and prior are vulnerable, especially on Windows platforms.

Exploitation Mechanism

The vulnerability can be exploited via crafted requests, allowing threat actors to execute malicious scripts.

Mitigation and Prevention

Learn about the steps to address and prevent CVE-2021-35240 effectively, ensuring system security.

Immediate Steps to Take

Upgrade to 2020.2.6 Hotfix 1 for the Orion Platform promptly to mitigate the risk. Implement recommendations from the Orion Secure Configuration Guide.

Long-Term Security Practices

Regularly update and patch the systems, conduct security audits, and educate users to prevent similar vulnerabilities in the future.

Patching and Updates

Stay informed about security advisories and patches from SolarWinds to address vulnerabilities promptly.