Out-of-bounds read in Autodesk AutoCAD - CVE-2021-27040

Vulnerability identifier: #VU54376

CSH Severity: High

CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-27040

CWE-ID: CWE-125

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing DWG and PDF files. A remote attacker can create a specially crafted DWG  file, trick the victim into opening it, trigger an out-of-bounds read and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Autodesk AutoCAD
MC Works64
GENESIS64
Autodesk Civil 3D
AutoCAD MEP
AutoCAD Mechanical
AutoCAD Plant 3D
AutoCAD Map 3D
AutoCAD LT
AutoCAD Electrical
AutoCAD Architecture
Advance Steel
Autodesk Infraworks

Install updates from vendor's website.

Autodesk AutoCAD - addressed in versions 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
GENESIS64 - update to 10.97.1
Autodesk Civil 3D - addressed in versions 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
AutoCAD MEP - addressed in versions 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
AutoCAD Mechanical - addressed in versions 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
AutoCAD Plant 3D - addressed in versions 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
AutoCAD Map 3D - addressed in versions 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
AutoCAD LT - addressed in versions 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
AutoCAD Electrical - addressed in versions 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
AutoCAD Architecture - addressed in versions 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
Advance Steel - addressed in versions 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
Autodesk Infraworks - addressed in versions 2020.2 Hotfix 6, 2021.2 Hotfix 6, 2022.1 Hotfix 4

• https://www.autodesk.com/trust/security-advisories/adsk-sa-2021-0004
• https://fortiguard.com/zeroday/FG-VD-20-137
• https://www.zerodayinitiative.com/advisories/ZDI-21-712/
• https://www.zerodayinitiative.com/advisories/ZDI-21-711/
• https://www.zerodayinitiative.com/advisories/ZDI-21-710/
• https://www.zerodayinitiative.com/advisories/ZDI-21-709/
• https://www.zerodayinitiative.com/advisories/ZDI-21-708/
• https://www.zerodayinitiative.com/advisories/ZDI-21-707/
• https://www.zerodayinitiative.com/advisories/ZDI-21-706/
• https://www.zerodayinitiative.com/advisories/ZDI-21-1238/
• https://www.zerodayinitiative.com/advisories/ZDI-21-1236/
• https://www.zerodayinitiative.com/advisories/ZDI-22-473/

• Multiple vulnerabilities in AutoCAD
• Multiple vulnerabilities in Autodesk Advance Steel
• Multiple vulnerabilities in AutoCAD Architecture
• Multiple vulnerabilities in AutoCAD Electrical
• Multiple vulnerabilities in AutoCAD Map 3D
• Multiple vulnerabilities in AutoCAD Mechanical
• Multiple vulnerabilities in AutoCAD MEP
• Multiple vulnerabilities in AutoCAD Plant 3D
• Multiple vulnerabilities in AutoCAD LT
• Multiple vulnerabilities in Autodesk Civil 3D
• Multiple vulnerabilities in ICONICS GENESIS64
• Multiple vulnerabilities in Mitsubishi Electric MC Works64
• Multiple vulnerabilities in Autodesk InfraWorks