CVE-2021-33212 : Vulnerability Insights and Analysis

A Cross-site scripting (XSS) vulnerability in the "View in Browser" feature in Elements-IT HTTP Commander 5.3.3 allows remote authenticated users to inject arbitrary web script or HTML via a crafted SVG image.

Understanding CVE-2021-33212

This CVE involves a Cross-site scripting (XSS) vulnerability in Elements-IT HTTP Commander 5.3.3, enabling remote authenticated users to execute malicious scripts using crafted SVG images.

What is CVE-2021-33212?

The CVE-2021-33212 is a Cross-site scripting (XSS) vulnerability that allows remote authenticated users to insert and run arbitrary web scripts or HTML code via a specifically designed SVG image within the "View in Browser" feature of Elements-IT HTTP Commander 5.3.3.

The Impact of CVE-2021-33212

The impact of this vulnerability is significant as it enables attackers to execute malicious scripts within the context of the user's session, potentially leading to unauthorized access, data theft, or further exploitation of the targeted system.

Technical Details of CVE-2021-33212

This section outlines the technical aspects of the CVE, including the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability arises due to improper input validation in the "View in Browser" feature, allowing attackers to inject malicious scripts or HTML code through a specifically crafted SVG image.

Affected Systems and Versions

Elements-IT HTTP Commander 5.3.3 is confirmed to be affected by this vulnerability, and any system running this specific version is at risk.

Exploitation Mechanism

To exploit CVE-2021-33212, remote authenticated users can leverage the "View in Browser" feature by uploading a malicious SVG image containing the malicious script, which gets executed within the context of the user's session.

Mitigation and Prevention

In response to CVE-2021-33212, it is crucial to implement immediate steps to secure the affected systems and follow long-term security practices to prevent similar vulnerabilities in the future.

Immediate Steps to Take

Users and administrators are advised to apply security patches or updates provided by the vendor, restrict access to the affected feature, and monitor system logs for any suspicious activities.

Long-Term Security Practices

Engage in regular security training to detect social engineering attacks, employ secure coding practices, and conduct routine security assessments to identify and remediate vulnerabilities proactively.

Patching and Updates

Ensure to apply the latest patches and updates released by Elements-IT for HTTP Commander to mitigate the CVE-2021-33212 vulnerability effectively.