CVE-2021-40164 : Exploit Details and Defense Strategies

This CVE record discusses a heap-based buffer overflow vulnerability in various Autodesk products that could allow an attacker to execute arbitrary code.

Understanding CVE-2021-40164

This section provides insights into the nature of the vulnerability and its potential impact.

What is CVE-2021-40164?

A heap-based buffer overflow vulnerability is identified in TIFF, PICT, TGA, or RLC file parsing, posing a risk of arbitrary code execution.

The Impact of CVE-2021-40164

The vulnerability can be exploited by attackers to run arbitrary code, potentially leading to system compromise and unauthorized access.

Technical Details of CVE-2021-40164

Explore the technical aspects and specifics of the CVE.

Vulnerability Description

The vulnerability stems from a heap-based buffer overflow issue, primarily occurring during the processing of TIFF, PICT, TGA, or RLC files.

Affected Systems and Versions

Vendor: n/a
Affected Products: Revit, Inventor, Infraworks, Navisworks, Fusion, Infrastructure Parts Editors, Autodesk Advanced Steel, Civil 3D, AutoCAD, AutoCAD LT, AutoCAD Architecture, AutoCAD Electrical, AutoCAD Map 3D, AutoCAD Mechanical, AutoCAD MEP, AutoCAD Plant 3D
Versions: 2022, 2021, 2020, 2019

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting malicious files in TIFF, PICT, TGA, or RLC formats, leading to buffer overflow and potential code execution.

Mitigation and Prevention

Learn how to address and prevent the CVE from posing further threats.

Immediate Steps to Take

Employ security best practices for handling file formats prone to buffer overflows.
Implement network and file scanning for malicious content to catch potential exploits.
Consider restricting file upload privileges to mitigate the risk of executing malicious files.

Long-Term Security Practices

Regularly update software and security patches to protect against known vulnerabilities.
Conduct security assessments and penetration testing on critical systems to identify and mitigate risks proactively.
Educate users on safe file handling practices and the risks associated with opening files from unknown sources.

Patching and Updates

Autodesk is recommended to release patches addressing the heap-based buffer overflow vulnerability to secure affected products.