CVE-2021-21480 : What You Need to Know

This CVE-2021-21480 affects SAP Manufacturing Integration and Intelligence (MII) versions less than 15.4. The vulnerability allows attackers to execute remote code on the server, compromising confidentiality, integrity, and availability.

Understanding CVE-2021-21480

This section will delve into the details of the CVE-2021-21480 vulnerability in SAP MII.

What is CVE-2021-21480?

SAP MII permits users to create and save dashboards as JSP through the Self Service Composition Environment (SSCE). Attackers can inject malicious JSP code into requests to the server, triggering remote code execution when opened by users with specific roles.

The Impact of CVE-2021-21480

The exploit can lead to privilege escalation as attackers can execute OS commands, compromise sensitive files, modify, or delete content on the server, potentially exposing it to severe risks.

Technical Details of CVE-2021-21480

Let's explore the technical aspects of the CVE-2021-21480 vulnerability.

Vulnerability Description

The vulnerability arises from the lack of server-side validations in SAP MII, allowing attackers to upload and execute files, leading to the execution of operating systems commands.

Affected Systems and Versions

SAP Manufacturing Integration and Intelligence versions less than 15.4 are impacted by this vulnerability.

Exploitation Mechanism

By intercepting server requests, attackers inject malicious JSP code into dashboards, which, when opened by specific users, can trigger remote code execution.

Mitigation and Prevention

To secure systems against CVE-2021-21480, users and organizations can take the following measures:

Immediate Steps to Take

Apply security patches provided by SAP promptly.
Restrict access permissions to sensitive roles within SAP MII.
Monitor server logs for suspicious activities.

Long-Term Security Practices

Conduct regular security assessments and audits.
Educate users on secure coding practices and threat awareness.
Implement network segmentation to contain potential attacks.

Patching and Updates

Regularly update SAP MII to the latest patched version to address known vulnerabilities and ensure the security of the application.