CVE-2020-28596 Explained : Impact and Mitigation

A stack-based buffer overflow vulnerability exists in Prusa Research PrusaSlicer 2.2.0 and Master (commit 4b040b856), allowing code execution via a specially crafted obj file.

Understanding CVE-2020-28596

This CVE involves a critical vulnerability in Prusa Research PrusaSlicer software.

What is CVE-2020-28596?

The vulnerability is a stack-based buffer overflow in the Objparser::objparse() function of PrusaSlicer, potentially leading to code execution.

The Impact of CVE-2020-28596

CVSS Base Score: 8.8 (High)
Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Confidentiality, Integrity, and Availability Impact: High

Technical Details of CVE-2020-28596

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The vulnerability allows an attacker to execute arbitrary code by providing a malicious obj file to the affected software.

Affected Systems and Versions

Affected Versions: Prusa Research PrusaSlicer 2.2.0, Prusa Research PrusaSlicer Master (commit 4b040b856)

Exploitation Mechanism

The vulnerability can be exploited by crafting a specific obj file to trigger the buffer overflow.

Mitigation and Prevention

Protecting systems from this vulnerability is crucial to maintaining security.

Immediate Steps to Take

Update PrusaSlicer to a patched version.
Avoid opening obj files from untrusted sources.

Long-Term Security Practices

Regularly update software to the latest versions.
Implement network security measures to prevent unauthorized access.

Patching and Updates

Ensure timely installation of security patches and updates for PrusaSlicer.