CVE-2021-31835 : What You Need to Know

This CVE-2021-31835 article provides insights into a Cross-Site Scripting vulnerability in McAfee ePolicy Orchestrator (ePO) and its impact, technical details, and mitigation strategies.

Understanding CVE-2021-31835

CVE-2021-31835 is a medium-severity vulnerability affecting McAfee ePolicy Orchestrator (ePO) versions prior to 5.10 Update 11, allowing attackers to inject malicious scripts or HTML through unsanitized parameters.

What is CVE-2021-31835?

The CVE-2021-31835 vulnerability in McAfee ePolicy Orchestrator (ePO) enables authenticated ePO administrators to insert arbitrary web scripts or HTML via a specific unsanitized parameter.

The Impact of CVE-2021-31835

With a CVSS base score of 4.8, this medium-severity vulnerability can be exploited by attackers with high privileges to execute cross-site scripting attacks, potentially compromising the confidentiality and integrity of the affected systems.

Technical Details of CVE-2021-31835

This section delves into the vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability allows ePO administrators to inject malicious scripts or HTML through an unsanitized parameter, posing a risk of cross-site scripting attacks within the ePO environment.

Affected Systems and Versions

McAfee ePolicy Orchestrator (ePO) versions earlier than 5.10 Update 11 are vulnerable to this flaw, requiring immediate attention to prevent exploitation.

Exploitation Mechanism

By exploiting the lack of proper sanitization of administrator inputs, threat actors can insert harmful scripts or HTML code, leading to potential security breaches.

Mitigation and Prevention

Discover immediate steps to take, long-term security measures, and the significance of patching and updates.

Immediate Steps to Take

Administrators should update McAfee ePolicy Orchestrator (ePO) to version 5.10 Update 11 or higher to mitigate the vulnerability and enhance security.

Long-Term Security Practices

Implement robust input validation mechanisms, conduct regular security assessments, and educate administrators on best practices to prevent cross-site scripting vulnerabilities.

Patching and Updates

Regularly apply security patches provided by McAfee to address known vulnerabilities and ensure a secure ePO environment.