CVE-2021-35391 Explained : Impact and Mitigation

A Server Side Request Forgery vulnerability found in Deskpro Support Desk v2021.21.6 allows attackers to execute arbitrary code via a crafted URL.

Understanding CVE-2021-35391

This article provides insights into the CVE-2021-35391 vulnerability affecting Deskpro Support Desk.

What is CVE-2021-35391?

CVE-2021-35391 is a Server Side Request Forgery vulnerability in Deskpro Support Desk v2021.21.6 that enables attackers to run malicious code by manipulating a URL.

The Impact of CVE-2021-35391

This vulnerability could result in unauthorized access to sensitive data, execution of arbitrary commands, and potential system compromise.

Technical Details of CVE-2021-35391

Explore the technical aspects of the CVE-2021-35391 vulnerability in detail.

Vulnerability Description

The vulnerability allows attackers to trigger requests from the server to other resources, potentially leading to data breaches or system takeover.

Affected Systems and Versions

All instances of Deskpro Support Desk v2021.21.6 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious URL to trick the server into sending requests to unintended destinations.

Mitigation and Prevention

Discover how to mitigate the risks associated with CVE-2021-35391 and prevent potential exploitation.

Immediate Steps to Take

Update Deskpro Support Desk to a patched version addressing the vulnerability.
Implement proper input validation and sanitization techniques to prevent SSRF attacks.

Long-Term Security Practices

Regularly monitor and audit network traffic for any suspicious activities.
Educate personnel on the dangers of clicking on unverified links or URLs.

Patching and Updates

Stay informed about security patches and updates released by Deskpro and promptly apply them to secure your system.