CVE-2021-35244 : Exploit Details and Defense Strategies

A detailed analysis of CVE-2021-35244, a vulnerability in the SolarWinds Orion Platform 2020.2.6 that allows attackers to execute remote code by exploiting a file upload flaw.

Understanding CVE-2021-35244

This section delves into the impact, technical details, and mitigation strategies related to the vulnerability.

What is CVE-2021-35244?

The vulnerability allows any user with alert management rights on the Orion Platform 2020.2.6 to perform an unrestricted file upload, leading to remote code execution.

The Impact of CVE-2021-35244

With a CVSS base score of 6.8, this vulnerability poses a medium severity risk with high confidentiality impact.

Technical Details of CVE-2021-35244

Here we provide an in-depth look into the vulnerability's description, affected systems, and exploitation mechanism.

Vulnerability Description

The issue lies in the "Log alert to a file" action of the Orion Platform, enabling users to write to any file, potentially leading to remote code execution.

Affected Systems and Versions

The affected product is the SolarWinds Orion Platform for Windows, specifically versions 2020.2.6 HF 2 and older.

Exploitation Mechanism

Exploiting this flaw requires Orion alert management rights, allowing attackers to upload malicious files.

Mitigation and Prevention

Learn about the immediate steps to take and long-term security practices to safeguard against CVE-2021-35244.

Immediate Steps to Take

Upgrading to the latest Orion Platform version is recommended to mitigate the vulnerability.

Long-Term Security Practices

Enhance security measures, restrict access, and stay informed about future patches and updates.

Patching and Updates

Refer to SolarWinds' Knowledgebase for detailed instructions on mitigating the vulnerability if an immediate upgrade is not possible.