CVE-2021-44520 : What You Need to Know

In Citrix XenMobile Server through 10.12 RP9, an Authenticated Command Injection vulnerability exists, leading to remote code execution with root privileges.

Understanding CVE-2021-44520

In this section, we will delve into the details of the CVE-2021-44520 vulnerability.

What is CVE-2021-44520?

CVE-2021-44520 is an Authenticated Command Injection vulnerability found in Citrix XenMobile Server through version 10.12 RP9. This flaw allows attackers to execute remote code with root privileges.

The Impact of CVE-2021-44520

The exploitation of this vulnerability could result in unauthorized remote code execution on the affected server, potentially leading to a complete compromise of the system.

Technical Details of CVE-2021-44520

Let's explore the technical aspects of CVE-2021-44520.

Vulnerability Description

The vulnerability allows authenticated attackers to inject malicious commands, leading to remote code execution with root privileges on Citrix XenMobile Server installations up to version 10.12 RP9.

Affected Systems and Versions

Product: Citrix XenMobile Server
Versions affected: Up to 10.12 RP9

Exploitation Mechanism

The exploitation requires authentication to the server. By sending specially crafted commands, attackers can execute arbitrary code with elevated privileges.

Mitigation and Prevention

Here are the steps to mitigate and prevent the exploitation of CVE-2021-44520:

Immediate Steps to Take

Apply the latest security patches provided by Citrix for XenMobile Server.
Monitor network traffic for any suspicious activities indicating unauthorized access.

Long-Term Security Practices

Implement the principle of least privilege to restrict user access and permissions.
Conduct regular security assessments and audits to detect vulnerabilities proactively.
Educate users and administrators about secure authentication practices and the risks of command injection attacks.

Patching and Updates

Keep the Citrix XenMobile Server up to date with the latest security patches and updates to address known vulnerabilities and enhance system security.