CVE-2020-28594 : Exploit Details and Defense Strategies
Learn about CVE-2020-28594, a high-severity use-after-free vulnerability in Prusa Research PrusaSlicer 2.2.0 and Master (commit 4b040b856) allowing code execution via crafted 3MF files. Find mitigation steps and preventive measures.
A use-after-free vulnerability in Prusa Research PrusaSlicer 2.2.0 and Master (commit 4b040b856) allows code execution via a specially crafted 3MF file.
Understanding CVE-2020-28594
This CVE involves a critical vulnerability in Prusa Research's software that could be exploited by an attacker to execute arbitrary code.
What is CVE-2020-28594?
A use-after-free flaw in the _3MF_Importer::_handle_end_model() function of PrusaSlicer versions 2.2.0 and Master (commit 4b040b856) enables malicious actors to trigger code execution by providing a crafted 3MF file.
The Impact of CVE-2020-28594
The vulnerability has a CVSS base score of 8.8, indicating a high severity level with significant impacts on confidentiality, integrity, and availability of affected systems.
Technical Details of CVE-2020-28594
This section delves into the technical aspects of the vulnerability.
Vulnerability Description
The use-after-free vulnerability in PrusaSlicer allows attackers to execute arbitrary code by manipulating specific 3MF files.
Affected Systems and Versions
- Product: Prusa Research
- Versions: PrusaSlicer 2.2.0, PrusaSlicer Master (commit 4b040b856)
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: None
- User Interaction: Required
- Scope: Unchanged
- Impact: High on confidentiality, integrity, and availability
Mitigation and Prevention
Protecting systems from CVE-2020-28594 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update PrusaSlicer to the latest version to patch the vulnerability.
- Avoid opening 3MF files from untrusted sources.
- Implement network security measures to prevent unauthorized access.
Long-Term Security Practices
- Regularly update software and firmware to address security vulnerabilities.
- Conduct security assessments and penetration testing to identify and mitigate potential risks.
Patching and Updates
- Stay informed about security advisories from Prusa Research and apply patches promptly to secure systems.